Name: reactive vapor deposition of conjugated polymer films on arbitrary substrates
Uploaded: 2018-01-17T10:55:00.000+00:00
Duration: 7 min 32 s
Description: Watch this Scientific Journal Video about Reactive Vapor Deposition of Conjugated Polymer Films on Arbitrary Substrates at JoVE.com

作者は感謝して、米国空軍科学研究局、契約番号 FA9550-14-1-0128 下からの財政支援を認めます。T. l. a.、デビッド ・ ルシル Packard 財団によって部分的にサポート感謝も認めています。

試薬の MSDS を読み、あなたの機関に必要なすべての化学安全対策に従ってください。
1. Cl PProDOT と Cl PTT の沈着
<ol><li>図 1に示すように、特注鋼管気相成膜室の構造を構築します。<ol>
<li>2 インチ (外径) 石英管に融合する 1/4 インチ (内径外径) の水晶側入口。特注 U 字型 1 インチ ステンレス鋼チューブとデュワー フラスコ コールド トラップを作る。</li>
		<li>真空計とコールド トラップ ステンレス製 KF コネクタを使用した石英管を接続し、クイックコネクト カップリング。石英アンプル内単量体を置き、1/4 インチを介して管状部屋にアンプルを接続クイックコネクト カップリングとニードル バルブ。場所商工会議所でるつぼで酸化します。</li>
		<li>加熱、酸化、基板、モノマーのソースとして別の暖房のテープを使用します。必要に応じてプロセスの圧力を制御するための追加の希ガスを導入する商工会議所の右端でガス注入口を追加します。</li>
	</ol>
</li>
	<li>
Cl PProDOT の沈着
	<ol>
<li>モノマー アンプルで 50 mg を 3, 4-propylenedioxythiophene (ProDOT) を追加し、管状の部屋に接続します。ニードル バルブを開いてください。</li>
		<li>商工会議所の基板 (スライド ガラス、布、紙など) を置きます。基板のサイズは 1.3 cm x 2.5 cm です。</li>
		<li>5 mL のるつぼにした FeCl3の 50 mg を追加し、商工会議所に配置。 注: モノマー入口、基板、るつぼの相対位置は図 1のとおりです。るつぼモノマー入口までの距離は 13 cm です。</li>
		<li>ポンプをオンにします。ゆっくりと商工会議所の右端のバルブを閉じます。商工会議所後圧力が 525 mTorr 下 (70 Pa)、コールド トラップで液体窒素を追加。</li>
		<li>テープを暖房の 3 つの加熱ゾーンをラップして加熱テープを温度コント ローラーに接続します。</li>
		<li>処理圧力まで圧力が低下するとき (52.5 mTorr、7 Pa)、モノマー コンテナーのニードル バルブを閉じます。</li>
		<li>オキシダント、基板と 170 ° C、80 ° C、および 80 ° C でモノマーをそれぞれ加熱を開始します。~ 10 分後をした FeCl3を蒸発させ、固体赤した FeCl3クールな地域に形成されています。</li>
		<li>モノマー コンテナーのニードル バルブを開きます。 注: 基板領域に青色の薄膜が形成されます。典型的な成長率は ~ 10 nm/分確認した FeCl3蒸気がモノマー コンテナーのニードル弁を開く前に商工会議所に形成されています。さもなければ、モノマーが反応した FeCl3固体のるつぼ、酸化種のさらに蒸発を防ぐポリマー層を形成します。</li>
		<li>所望の厚さを達成するときは、モノマー コンテナーのニードル バルブを閉じます。すべて暖房テープを切り、室温にシステムを冷却します。</li>
		<li>ガス入口弁を開き、ポンプをオフにします。</li>
		<li>商工会議所のサンプルを取る。慎重にメタノール残留オキシダントとモノマーを削除する 30 分間のサンプルを浸します。 注: は、フィルム厚さが増加するにつれて増やす必要があります時間を洗浄します。100 よりも薄い膜の典型的な 30 分の洗浄はスライド ガラスの nm。500 よりも厚いフィルム nm が基板から剥離し洗浄するとき。</li>
		<li>慎重に打撃は、窒素ガスでサンプルを乾燥させます。</li>
	</ol>
</li>
	<li>
Cl PTT の沈着
	<ol>
<li>Thieno 50 mg を追加 [3, 2 -b] チオフェン (TT) モノマー アンプルで、管状の部屋に接続します。ニードル バルブを開いてください。</li>
		<li>1.2.2 の手順を繰り返します。1.2.12 を。</li>
	</ol>
</li>
</ol>2 Br PEDOT の堆積
<ol><li>
成膜室セットアップ
	<ol>
<li>石英管に酸化剤の追加 1/4 インチ側入口を追加し、モノマー入口から離れて 8 インチを作る。石英アンプル内液体の酸化剤を配置し、モノマー (図 2) と同じ方法鋼管室にアンプルを接続します。</li>
	</ol>
</li>
	<li>
Br PEDOT の沈着
	<ol>
<li>3, 4 エチレンジ (EDOT) 2 mL を加えてモノマー アンプル、アンプルを管状部屋に接続します。ニードル バルブを開いてください。</li>
		<li>モノマー蒸気入口近く管状部屋に基板 (スライド ガラス、布、紙など) を配置します。基板のサイズは 1.3 cm x 2.5 cm です。</li>
		<li>Br2の 2 mL を加えて酸化剤アンプルそしてニードル バルブにアンプルを接続発煙のフードでニードル弁を閉めください。石英管にニードル バルブを接続します。 注意:Br2は有害物質です。処理するときは、注意を使用します。</li>
		<li>ポンプをオンにします。ゆっくりと商工会議所の右端のバルブを閉じます。商工会議所後圧力が 525 mTorr 下 (70 Pa)、コールド トラップで液体窒素を追加。</li>
		<li>テープを暖房単量体領域をラップし、温度コント ローラーを接続します。常温で基板と酸化剤の領域を維持します。</li>
		<li>52.5 mTorr の処理圧力まで圧力が低下するとき (7 Pa)、酸化種のニードル バルブを開きます。 注: 反応は非常に高速です。Br2が非常に不安定ですので青 PEDOT 膜はモノマー入口近くになります。</li>
		<li>所望の厚さを達成するとき、モノマーおよびオキシダントのニードル バルブを閉じます。</li>
		<li>加熱テープを切り、部屋の温度にシステムを冷却します。</li>
		<li>ガス入口弁を開き、ポンプをオフにします。商工会議所のサンプルを取る。 注: Br2では、洗浄は必要はありません-ポリマーを添加しました。</li>
	</ol>
</li>
</ol>

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著者が明らかに何もありません。

反応の機構は、酸化重合です。同じメカニズムを使用してポリマー コーティング方法は電解重合17を気相重合18あります。電解重合の導電性基板が必要です、制服と等角のコーティングの利点に欠けている、環境に優しくないソリューション手法19。既存蒸気相重合法はここで報告されるメソッドに似ていますが20高い揮?...

高分子を実施し、半導体材料の柔軟性1, 張出し2, 透明性低密度と34を作成するための特別な機会を提供するなどのユニークなプロパティがあります。次世代非伝統的な基板上の電子デバイス。現在、多くの研究者は柔軟性を作成する高分子材料やウェアラブルな電子機器5,6とスマートテキ7のユニークな特性の活用に努めています。ただし、共非常に織り目加工の表面および非堅牢な基板、紙や布のスレッド/糸などを塗るに能力の修得されていないままです。最も一般的に、ポリマーを合成して、解法を用いた表面のコーティングします。8,9,10,11,12解法ポリマー繊維・ テキスタイルを提供しますが、こうして得られたコーティングが多い非均一な小さな物理的な応力13,14によって簡単に破損しています。また、解決方法は問題を濡れのためコーティング紙に適用されません。
反応性蒸着法は、表面の化学組成、表面エネルギー、表面粗さ・形状15に関係なく、基板の多様な範囲の等角共役ポリマー薄膜を作成できます。このアプローチで共役ポリマーは表面にモノマーと酸化剤の蒸気を同時に提供することにより気相で合成されます。単一溶剤フリーのステップで表面で重合とフィルムの形成が発生します。このメソッドは、理論的に解決方法を使用して酸化重合により合成することができます任意の共役ポリマーに適用されます。しかし、これまでは、共役高分子の構造だけの狭いセットを堆積させるためのプロトコルが知られています。15
ここでは、導電性 poly(3,4-ethylenedioxythiophene) (PEDOT) と poly(3,4-propylenedioxythiophene) (PProDOT)、および半導体のポリの堆積を示す (thieno [3, 2 -b] チオフェン) 反応性蒸着膜 (PTT)。プロセスで使用される酸化剤、固体した FeCl3と液体 Br2の 2 種類。対応するポリマーは Cl PProDOT、Cl-PTT および Br PEDOT といいます。従来の基板、スライド ガラスと紙やタオル生地など、型破りな織り目加工基板の両方は、高分子膜でコーティングしました。
このプロトコルでは、特注の気相成膜室のセットアップおよび成膜プロセスの詳細について説明します。その成膜システムを構築し、気相合成に関連付けられている一般的な落とし穴を避けるための新しい実務を支援するものです。

<table><tbody><tr><td>3,4-Ethylenedioxythiophene, 97%</td><td>Sigma Aldrich</td><td>483028</td><td></td></tr><tr><td>3,4-Propylenedioxythiophene, 97%</td><td>Sigma Aldrich</td><td>660485</td><td></td></tr><tr><td>Thieno[3,2-b]thiophene, 95%</td><td>Sigma Aldrich</td><td>702668</td><td></td></tr><tr><td>FeCl&lt;sub&gt;3&lt;/sub&gt;, 97%</td><td>Sigma Aldrich</td><td>157740</td><td></td></tr><tr><td>Br&lt;sub&gt;2&lt;/sub&gt;</td><td>Sigma Aldrich</td><td>207888</td><td></td></tr></tbody></table>

reactive vapor deposition of conjugated polymer films on arbitrary substrates

我々 は、カスタム設計の低圧チャンバーを使用して任意の基板上への導電性高分子をコーティング共のメソッドを示します。導電性ポリマー、poly(3,4-ethylenedioxythiophene) (PEDOT) と poly(3,4-propylenedioxythiophene) (PProDOT)、半導体ポリマー、ポリ (thieno [3, 2 -b] チオフェン) (PTT)、非常に乱れ型破りな上に堆積したと紙やタオル生地などの高表面積とテクスチャの基板。これは体制は、3, 4-propylenedioxythiophene、thieno など、揮発性および非揮発性モノマーを収容できるため、成膜室は以前の気相反応炉の改善報告 [3, 2 -b] チオフェン。固体と液体の両方の酸化剤の利用方法も示します。このメソッドの 1 つの制限は、洗練されたその場で膜厚モニターが欠けていることです。スピン コーティングと表面移植などの一般的に使用されるソリューション ベースのコーティング方法によって作られたポリマー コーティング、しばしば制服または機械的劣化を受けやすいです。これは、気相堆積法はそれらの欠点を克服して、共通ソリューション ベースのコーティング方法の強力な代替手段を報告しました。特に、報告方法により高分子膜が制服とマイクロ メートルのスケールでも、粗面の共形です。この機能は蒸着ポリマー柔軟かつ高い質感の基板上の電子デバイスの将来のアプリケーションのことができます。

1.3 × 2.5 cm スライド ガラス中央管に沿って離散横位置で配置の Cl PProDOT 膜の厚さを測定機 (図 3) で測定しました。伝導率は、家造られた 4 点プローブ テスト ステーションを用いた比抵抗測定値から算出しました。スライド ガラスに 100 nm 厚 Cl PProDOT 膜の導電率測定は 106 S/cm、潜在的な電極材料としてこの映画を修飾するために十分であります?...

Watch this Scientific Journal Video about Reactive Vapor Deposition of Conjugated Polymer Films on Arbitrary Substrates at JoVE.com

Reactive Vapor Deposition of Conjugated Polymer Films on Arbitrary Substrates

任意の基板上への共役ポリマー薄膜の反応性蒸着

本稿での反応性蒸着ポリ、poly(3,4-propylenedioxythiophene)、poly(3,4-ethylenedioxythiophene) プロトコル (thieno [3, 2 -b] チオフェン) スライド ガラス、繊維、紙等の大まかな基板上の薄膜。

We demonstrate a method of conformally coating conjugated polymers on arbitrary substrates using a custom-designed, low-pressure reaction chamber. ...

reactive-vapor-deposition-conjugated-polymer-films-on-arbitrary

Universidad de Cartagena UDEC

Research

JoVE Journal

Chemistry

33.6K ビュー.  University of Wisconsin-Madison. 本稿での反応性蒸着ポリ、poly(3,4-propylenedioxythiophene)、poly(3,4-ethylenedioxythiophene) プロトコル (thieno [3, 2 -b] チオフェン) スライド ガラス、繊維、紙等の大まかな基板上の薄膜。

ビデオ: Reactive Vapor Deposition of Conjugated Polymer Films on Arbitrary Substrates

Preparation of Hydrophobic Metal-Organic Frameworks via Plasma Enhanced Chemical Vapor Deposition of Perfluoroalkanes for the Removal of Ammonia

Plasma enhanced chemical vapor deposition (PECVD) of perfluoroalkanes has long been studied for tuning the wetting properties of surfaces. For high surface area microporous materials, such as metal-organic frameworks (MOFs), unique challenges present themselves for PECVD treatments. Herein the protocol for development of a MOF that was previously unstable to humid conditions is presented. The protocol describes the synthesis of Cu-BTC (also known as HKUST-1), the treatment of Cu-BTC with PECVD of perfluoroalkanes, the aging of materials under humid conditions, and the subsequent ammonia microbreakthrough experiments on milligram quantities of microporous materials. Cu-BTC has an extremely high surface area (~1,800 m2/g) when compared to most materials or surfaces that have been previously treated by PECVD methods. Parameters such as chamber pressure and treatment time are extremely important to ensure the perfluoroalkane plasma penetrates to and reacts with the inner MOF surfaces. Furthermore, the protocol for ammonia microbreakthrough experiments set forth here can be utilized for a variety of test gases and microporous materials.

Herein the procedures for plasma enhanced chemical vapor deposition of perfluoroalkanes on microporous materials such as metal-organic frameworks to enhance their stability and hydrophobicity are described. Furthermore, breakthrough testing of milligram quantities of samples is described in detail.

プラズマを介した疎水性有機金属フレームワークの製造は、アンモニアの除去のためにペルフルオロアルカンの化学的気相成長法を強化

Plasma enhanced chemical vapor deposition (PECVD) of perfluoroalkanes has long been studied for tuning the wetting properties of surfaces. For high ...

化学

Reductive Electropolymerization of a Vinyl-containing Poly-pyridyl Complex on Glassy Carbon and Fluorine-doped Tin Oxide Electrodes

Controllable electrode surface modification is important in a number of fields, especially those with solar fuels applications. Electropolymerization is one surface modification technique that electrodeposits a polymeric film at the surface of an electrode by utilizing an applied potential to initiate the polymerization of substrates in the Helmholtz layer. This useful technique was first established by a Murray-Meyer collaboration at the University of North Carolina at Chapel Hill in the early 1980s and utilized to study numerous physical phenomena of films containing inorganic complexes as the monomeric substrate. Here, we highlight a procedure for coating electrodes with an inorganic complex by performing reductive electropolymerization of the vinyl-containing poly-pyridyl complex onto glassy carbon and fluorine doped tin oxide coated electrodes. Recommendations on electrochemical cell configurations and troubleshooting procedures are included. Although not explicitly described here, oxidative electropolymerization of pyrrole-containing compounds follows similar procedures to vinyl-based reductive electropolymerization but are far less sensitive to oxygen and water.

A procedure for performing reductive electropolymerization of vinyl-containing compounds onto glassy carbon and fluorine doped tin-oxide coated electrodes is presented. Recommendations on electrochemical cell configurations and troubleshooting procedures are included. Although not explicitly described here, oxidative electropolymerization of pyrrole-containing compounds follows similar procedures to vinyl-based reductive electropolymerization.

グラッシーカーボンとフ​​ッ素ドープ酸化スズ電極上にビニル含有ポリピリジル錯体の還元電解重合

Controllable electrode surface modification is important in a number of fields, especially those with solar fuels applications. Electropolymerization is ...

Fabrication of Large-area Free-standing Ultrathin Polymer Films

This procedure describes a method for the fabrication of large-area and ultrathin free-standing polymer films. Typically, ultrathin films are prepared using either sacrificial layers, which may damage the film or affect its mechanical properties, or they are made on freshly cleaved mica, a substrate that is difficult to scale. Further, the size of ultrathin film is typically limited to a few square millimeters. In this method, we modify a surface with a polyelectrolyte that alters the strength of adhesion between polymer and deposition substrate. The polyelectrolyte can be shown to remain on the wafer using spectroscopy, and a treated wafer can be used to produce multiple films, indicating that at best minimal amounts of the polyelectrolyte are added to the film. The process has thus far been shown to be limited in scalability only by the size of the coating equipment, and is expected to be readily scalable to industrial processes. In this study, the protocol for making the solutions, preparing the deposition surface, and producing the films is described.

We describe a method for the fabrication of large-area (up to 13 cm diameter) and ultrathin (as thin as 8 nm) polymer films. Instead of using a sacrificial interlayer to delaminate the film from its substrate, we use a self-limiting surface treatment suitable for arbitrarily large areas.

大面積自立超薄ポリマーフィルムの作製

This procedure describes a method for the fabrication of large-area and ultrathin free-standing polymer films.  Typically, ultrathin films are prepared ...

Layer-by-layer Synthesis and Transfer of Freestanding Conjugated Microporous Polymer Nanomembranes

CMP as large surface area materials have attracted growing interest recently, due to their high variability in the incorporation of functional groups in combination with their outstanding thermal and chemical stability, and low densities. However, their insoluble nature causes problems in their processing since usually applied techniques such as spin coating are not available. Especially for membrane applications, where the processing of CMP as thin films is desirable, the processing problems have hindered their commercial application.
Here we describe the interfacial synthesis of CMP thin films on functionalized substrates via molecular layer-by-layer (l-b-l) synthesis. This process allows the preparation of films with desired thickness and composition and even desired composition gradients.
The use of sacrificial supports allows the preparation of freestanding membranes by dissolution of the support after the synthesis. To handle such ultra-thin freestanding membranes the protection with sacrificial coatings showed great promise, to avoid rupture of the nanomembranes. To transfer the nanomembranes to the desired substrate, the coated membranes are upfloated at the air-liquid interface and then transferred via dip coating.

In this paper we describe the interfacial synthesis of conjugated microporous polymers (CMP) on sacrificial substrates, and the dissolution of the substrate for the preparation of freestanding CMP nanomembranes. In addition, we will describe how the fragile nanomembranes can be transferred to other substrates.

層ごとの合成と自立共役高分子ナノ薄膜マイクロポーラスの譲渡

CMP as large surface area materials have attracted growing interest recently, due to their high variability in the incorporation of functional groups in ...

Atom Transfer Radical Polymerization of Functionalized Vinyl Monomers Using Perylene as a Visible Light Photocatalyst

A standardized technique for atom transfer radical polymerization of vinyl monomers using perylene as a visible-light photocatalyst is presented. The procedure is performed under an inert atmosphere using air- and water-exclusion techniques. The outcome of the polymerization is affected by the ratios of monomer, initiator, and catalyst used as well as the reaction concentration, solvent, and nature of the light source. Temporal control over the polymerization can be exercised by turning the visible light source off and on. Low dispersities of the resultant polymers as well as the ability to chain-extend to form block copolymers suggest control over the polymerization, while chain end-group analysis provides evidence supporting an atom-transfer radical polymerization mechanism.

A method for the atom transfer radical polymerization of functionalized vinyl monomers using perylene as a visible-light photocatalyst is described.

可視光応答型光触媒としてペリレンを使用した官能ビニルモノマーの原子移動ラジカル重合

A standardized technique for atom transfer radical polymerization of vinyl monomers using perylene as a visible-light photocatalyst is presented. The ...

Electroactive Polymer Nanoparticles Exhibiting Photothermal Properties

A method for the synthesis of electroactive polymers is demonstrated, starting with the synthesis of extended conjugation monomers using a three-step process that finishes with Negishi coupling. Negishi coupling is a cross-coupling process in which a chemical precursor is first lithiated, followed by transmetallation with ZnCl2. The resultant organozinc compound can be coupled to a dibrominated aromatic precursor to give the conjugated monomer. Polymer films can be prepared via electropolymerization of the monomer and characterized using cyclic voltammetry and ultraviolet-visible-near infrared (UV-Vis-NIR) spectroscopy. Nanoparticles (NPs) are prepared via emulsion polymerization of the monomer using a two-surfactant system to yield an aqueous dispersion of the polymer NPs. The NPs are characterized using dynamic light scattering, electron microscopy, and UV-Vis-NIR-spectroscopy. Cytocompatibility of NPs is investigated using the cell viability assay. Finally, the NP suspensions are irradiated with a NIR laser to determine their effectiveness as potential materials for photothermal therapy (PTT).

A protocol is presented for the synthesis and preparation of nanoparticles consisting of electroactive polymers.

電気活性ポリマーナノ粒子出展光熱プロパティ

A method for the synthesis of electroactive polymers is demonstrated, starting with the synthesis of extended conjugation monomers using a three-step ...

工学

Fabricating Reactive Surfaces with Brush-like and Crosslinked Films of Azlactone-Functionalized Block Co-Polymers

In this paper, fabrication methods that generate novel surfaces using the azlactone-based block co-polymer, poly (glycidyl methacrylate)-block-poly (vinyl dimethyl azlactone) (PGMA-b-PVDMA), are presented. Due to the high reactivity of azlactone groups towards amine, thiol, and hydroxyl groups, PGMA-b-PVDMA surfaces can be modified with secondary molecules to create chemically or biologically functionalized interfaces for a variety of applications. Previous reports of patterned PGMA-b-PVDMA interfaces have used traditional top-down patterning techniques that generate non-uniform films and poorly controlled background chemistries. Here, we describe customized patterning techniques that enable precise deposition of highly uniform PGMA-b-PVDMA films in backgrounds that are chemically inert or that have biomolecule-repellent properties. Importantly, these methods are designed to deposit PGMA-b-PVDMA films in a manner that completely preserves azlactone functionality through each processing step. Patterned films show well-controlled thicknesses that correspond to polymer brushes (~90 nm) or to highly crosslinked structures (~1-10 &#956;m). Brush patterns are generated using either the parylene lift-off or interface directed assembly methods described and are useful for precise modulation of overall chemical surface reactivity by adjusting either the PGMA-b-PVDMA pattern density or the length of the VDMA block. In contrast, the thick, crosslinked PGMA-b-PVDMA patterns are obtained using a customized micro-contact printing technique and offer the benefit of higher loading or capture of secondary material due to higher surface area to volume ratios. Detailed experimental steps, critical film characterizations, and trouble-shooting guides for each fabrication method are discussed.

Surface fabrication methods for patterned deposition of nanometer thick brushes or micron thick, crosslinked films of an azlactone block co-polymer are reported. Critical experimental steps, representative results, and limitations of each method are discussed. These methods are useful for creating functional interfaces with tailored physical features and tunable surface reactivity.

ブラシのような反応性表面を加工し、アズラクトン官能基化ブロック共重合体の架橋膜

In this paper, fabrication methods that generate novel surfaces using the azlactone-based block co-polymer, poly (glycidyl methacrylate)-block-poly (vinyl ...

Procedure for the Transfer of Polymer Films Onto Porous Substrates with Minimized Defects

The fabrication of devices containing thin film composite membranes necessitates the transfer of these films onto the surfaces of arbitrary support substrates. Accomplishing this transfer in a highly controlled, mechanized, and reproducible manner can eliminate the creation of macroscale defect structures (e.g., tears, cracks, and wrinkles) within the thin film that compromise device performance and the usable area per sample. Here, we describe a general protocol for the highly controlled and mechanized transfer of a polymeric thin film onto an arbitrary porous support substrate for eventual use as a water filtration membrane device. Specifically, we fabricate a block copolymer (BCP) thin film on top of a sacrificial, water-soluble poly(acrylic acid) (PAA) layer and silicon wafer substrate. We then utilize a custom-designed, 3D-printed transfer tool and drain chamber system to deposit, lift-off, and transfer the BCP thin film onto the center of a porous anodized aluminum oxide (AAO) support disc. The transferred BCP thin film is shown to be consistently placed onto the center of the support surface due to the guidance of the meniscus formed between the water and the 3D-printed plastic drain chamber. We also compare our mechanized transfer-processed thin films to those that have been transferred by hand with the use of tweezers. Optical inspection and image analysis of the transferred thin films from the mechanized process confirm that little-to-no macroscale inhomogeneities or plastic deformations are produced, as compared to the multitude of tears and wrinkles produced from manual transfer by hand. Our results suggest that the proposed strategy for thin film transfer can reduce defects when compared to other methods across many systems and applications.

We present a procedure for highly controlled and wrinkle-free transfer of block copolymer thin films onto porous support substrates using a 3D-printed drain chamber. The drain chamber design is of general relevance to all procedures involving transfer of macromolecular films onto porous substrates, which is normally done by hand in an irreproducible fashion.

欠陥を最小限に抑えた多孔質基板へのポリマーフィルムの移送手順

The fabrication of devices containing thin film composite membranes necessitates the transfer of these films onto the surfaces of arbitrary support ...

Development of Efficient OLEDs from Solution Deposition

The use of highly efficient organic emitters based on the thermally activated delayed fluorescence (TADF) concept is interesting due to their 100% internal quantum efficiency. Presented here is a solution deposition method for the fabrication of efficient organic light-emitting diodes (OLEDs) based on a TADF emitter in a simple device structure. This fast, low-cost, and efficient process can be used for all OLED emissive layers that follow the host-guest concept. The fundamental steps are described along with necessary information for further reproduction. The goal to establish a general protocol that can be easily adapted for principal organic emitters currently under study and development.

Presented here is a protocol for the fabrication of efficient, simple, solution-deposited organic light-emitting diodes with low roll-off.

溶液成膜からの高効率有機ELの開発

The use of highly efficient organic emitters based on the thermally activated delayed fluorescence (TADF) concept is interesting due to their 100% ...

Vapor Phase Deposition of Electroactive Poly(3,4-ethylenedioxythiophene) onto Electrospun Commodity Polymer Nanofibers

This study investigates the preparation of polyacrylonitrile (PAN) nanofibers through electrospinning to create highly porous and strong materials for applications in water purification, electrocatalysis, and biomedicine. The uniformly white PAN nanofiber mats were cut into 2 cm x 2 cm coupons to ensure consistency. After electrospinning, these nanofibers were coated with an electroactive polymer (EAP) using chemical vapor deposition, with iron (III) chloride (FeCl3) serving as an oxidant for polymerizing 3,4-ethylenedioxythiophene (EDOT) into poly(3,4-ethylenedioxythiophene) (PEDOT). The study examined the impact of different FeCl3 concentrations on PEDOT deposition on the PAN coupons. PEDOT deposition led to an increase in coupon weight. Scanning electron microscopy (SEM) revealed increases in the diameter of the nanofibers treated with increasing FeCl3 oxidant concentration, although higher FeCl3&#160;concentrations caused inter-fiber bridging, implying a concomitant decrease in inter-fiber spacing. Energy dispersive X-ray spectroscopy (EDS) was used to confirm the presence of Fe, Cl, and S in the nanofibers, with sulfur content rising with FeCl3&#160;concentration used, suggesting increased PEDOT deposition efficiency with increasing oxidant concentration. Mechanical testing showed that PEDOT-coated PAN fibers had improved tensile strength and toughness in the hydrated state compared to pure PAN nanofibers. These results highlight the crucial role of FeCl3&#160;concentration in influencing the morphology and properties of PAN-PEDOT composites, enhancing their suitability for applications such as water purification, tissue engineering, biosensing, catalysis, and energy storage.

This paper describes a simple technique for coating electrospun PAN nanofibers with electroactive polymers using vapor deposition. The effects of the oxidant FeCl&#8323; on the deposition of poly(3,4-ethylenedioxythiophene) coatings on PAN were investigated to understand and optimize polymer growth, fiber diameter, and overall mechanical strength of the nanofiber mats.

エレクトロスピニング商品ポリマーナノファイバー上への電気活性ポリ(3,4-エチレンジオキシチオフェン)の気相堆積

This study investigates the preparation of polyacrylonitrile (PAN) nanofibers through electrospinning to create highly porous and strong materials for ...

任意の基板上への共役ポリマー薄膜の反応性蒸着

要約

さらに動画を探す

この動画の章

プラズマを介した疎水性有機金属フレームワークの製造は、アンモニアの除去のためにペルフルオロアルカンの化学的気相成長法を強化

グラッシーカーボンとフッ素ドープ酸化スズ電極上にビニル含有ポリピリジル錯体の還元電解重合

大面積自立超薄ポリマーフィルムの作製

層ごとの合成と自立共役高分子ナノ薄膜マイクロポーラスの譲渡

可視光応答型光触媒としてペリレンを使用した官能ビニルモノマーの原子移動ラジカル重合

電気活性ポリマーナノ粒子出展光熱プロパティ

ブラシのような反応性表面を加工し、アズラクトン官能基化ブロック共重合体の架橋膜

欠陥を最小限に抑えた多孔質基板へのポリマーフィルムの移送手順

溶液成膜からの高効率有機ELの開発

エレクトロスピニング商品ポリマーナノファイバー上への電気活性ポリ(3,4-エチレンジオキシチオフェン)の気相堆積

任意の基板上への共役ポリマー薄膜の反応性蒸着

要約

さらに動画を探す

この動画の章

プラズマを介した疎水性有機金属フレームワークの製造は、アンモニアの除去のためにペルフルオロアルカンの化学的気相成長法を強化

グラッシーカーボンとフ​​ッ素ドープ酸化スズ電極上にビニル含有ポリピリジル錯体の還元電解重合

大面積自立超薄ポリマーフィルムの作製

層ごとの合成と自立共役高分子ナノ薄膜マイクロポーラスの譲渡

可視光応答型光触媒としてペリレンを使用した官能ビニルモノマーの原子移動ラジカル重合

電気活性ポリマーナノ粒子出展光熱プロパティ

ブラシのような反応性表面を加工し、アズラクトン官能基化ブロック共重合体の架橋膜

欠陥を最小限に抑えた多孔質基板へのポリマーフィルムの移送手順

溶液成膜からの高効率有機ELの開発

エレクトロスピニング商品ポリマーナノファイバー上への電気活性ポリ(3,4-エチレンジオキシチオフェン)の気相堆積

グラッシーカーボンとフッ素ドープ酸化スズ電極上にビニル含有ポリピリジル錯体の還元電解重合