Electrochemical preparation of donor-acceptor type conjugated polymer films: Effect of substitute units on electrochromic performance

The energetic disorder in conjugated polymer films plays a crucial role in determining the charge separation and recombination process at the donor/acceptor heterojunction, thus dominates the photocurrent and photovoltage in...

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Scanning-tunneling spectroscopy on conjugated polymer films

MRS Proceedings ◽

10.1557/proc-771-l4.3 ◽

2003 ◽

Vol 771 ◽

Author(s):

M. Kemerink ◽

S.F. Alvarado ◽

P.M. Koenraad ◽

R.A.J. Janssen ◽

H.W.M. Salemink ◽

...

Keyword(s):

Polymer Films ◽

Conjugated Polymer ◽

Three Dimensional ◽

Field Enhancement ◽

Direct Consequence ◽

Scanning Tunneling Spectroscopy ◽

Tunneling Spectroscopy ◽

Band Alignment ◽

Scanning Tunneling ◽

Order Of Magnitude

AbstractScanning-tunneling spectroscopy experiments have been performed on conjugated polymer films and have been compared to a three-dimensional numerical model for charge injection and transport. It is found that field enhancement near the tip apex leads to significant changes in the injected current, which can amount to more than an order of magnitude, and can even change the polarity of the dominant charge carrier. As a direct consequence, the single-particle band gap and band alignment of the organic material can be directly obtained from tip height-voltage (z-V) curves, provided that the tip has a sufficiently sharp apex.

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Endgroup and Sidechain Functionalization of Surface-Initiated ROMP Thin Films: Progress Towards ROMP-Based Molecular Wires

10.26434/chemrxiv.5954518 ◽

2018 ◽

Author(s):

Nicholas Marshall

Keyword(s):

Thin Films ◽

Contact Angle ◽

Cyclic Voltammetry ◽

Polymer Films ◽

Conjugated Polymer ◽

Ring Opening ◽

Molecular Wires ◽

Metathesis Polymerization ◽

Cross Metathesis ◽

Active Ester

A set of experiments in surface-initiated ring-opening metathesis polymerization, including end-functionalization of growing brushes and contact angle/cyclic voltammetry measurements. We report preparation and CV of two different conjugated polymer films, and several endgroup and sidechain functionalization experiments using cross-metathesis and active ester substitution.<br>

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Direction‐Selectable Ultra‐Highly Oriented State of Donor–Acceptor Conjugated Polymer Induced by Slow Bar Coating Process

Advanced Electronic Materials ◽

10.1002/aelm.202100313 ◽

2021 ◽

pp. 2100313

Author(s):

Yuta Yabuuchi ◽

Yu Minowa ◽

Hirotake Kajii ◽

Shusaku Nagano ◽

Akihiko Fujii ◽

...

Keyword(s):

Conjugated Polymer ◽

Coating Process ◽

Donor Acceptor

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Synthesis and Characterization of a New Donor–Acceptor Conjugated Polymer and Polymer∕Ag Nanocomposites

10.1063/1.3643630 ◽

2011 ◽

Author(s):

M. G. Murali ◽

D. Udayakumar ◽

P. Predeep ◽

Mrinal Thakur ◽

M. K. Ravi Varma

Keyword(s):

Conjugated Polymer ◽

Synthesis And Characterization ◽

Donor Acceptor

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Phototransistors based on a donor–acceptor conjugated polymer with a high response speed

Journal of Materials Chemistry C ◽

10.1039/c5tc01799h ◽

2015 ◽

Vol 3 (41) ◽

pp. 10734-10741 ◽

Cited By ~ 20

Author(s):

Qinghe Wang ◽

Min Zhu ◽

Di Wu ◽

Guobing Zhang ◽

Xiaohong Wang ◽

...

Keyword(s):

Conjugated Polymer ◽

Carrier Transport ◽

Incident Light ◽

Response Speed ◽

High Response ◽

Electron Carrier ◽

Transport Response ◽

Donor Acceptor

A D–A polymer phototransistor shows both hole- and electron-carrier transport response to incident light with photoswitching speeds below 14 ms.

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An expanded isoindigo unit as a new building block for a conjugated polymer leading to high-performance solar cells

Journal of Materials Chemistry A ◽

10.1039/c3ta15291j ◽

2014 ◽

Vol 2 (15) ◽

pp. 5427-5433 ◽

Cited By ~ 34

Author(s):

Shugang Li ◽

Zhongcheng Yuan ◽

Jianyu Yuan ◽

Ping Deng ◽

Qing Zhang ◽

...

Keyword(s):

Solar Cells ◽

Solar Cell ◽

Building Block ◽

Conjugated Polymer ◽

High Performance ◽

Fill Factor ◽

Solar Cell Device ◽

Donor Acceptor ◽

First Time

An expanded isoindigo unit (IBTI) has been incorporated into a donor–acceptor conjugated polymer for the first time. The PCE of the solar cell device based on the new polymer reached 6.41% with a fill factor of 0.71.

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Synthesis of donor-acceptor-type conjugated polymer dots as organic photocatalysts for dye degradation and hydrogen evolution

Polymer ◽

10.1016/j.polymer.2021.124004 ◽

2021 ◽

pp. 124004

Author(s):

Yougjin Gwon ◽

Seonyoung Jo ◽

Hyun-Jun Lee ◽

Soo Young Park ◽

Taek Seung Lee

Keyword(s):

Hydrogen Evolution ◽

Conjugated Polymer ◽

Dye Degradation ◽

Polymer Dots ◽

Donor Acceptor

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Conjugated Polymer Films Having a Uniaxial Molecular Orientation and Network Structure Prepared by Electrochemical Polymerization in Liquid Crystals

Polymers ◽

10.3390/polym13152425 ◽

2021 ◽

Vol 13 (15) ◽

pp. 2425

Author(s):

Jiuchao Dong ◽

Shigeki Nimori ◽

Hiromasa Goto

Keyword(s):

Liquid Crystals ◽

Network Structure ◽

Polymer Films ◽

Conjugated Polymer ◽

Main Chain ◽

Electrochemical Polymerization ◽

Electronic Devices ◽

New Method ◽

Magnetic Orientation ◽

Organic Electronic Devices

A new method for fabricating conjugated polymer films was developed using electrochemical polymerization in liquid crystals and magnetic orientation. A uniaxial main chain orientation and a crosslinked network structure were achieved with this method. By employing eight types of monomers, the influence of the crosslinking for the film was investigated. The crosslinking was found to improve the solvent resistance of the conjugated polymer films. This new method is expected to be useful in various applications, such as high-powered organic electronic devices with durability.

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