Fluorodiphenylethene-Containing Donor–Acceptor Conjugated Copolymers with Noncovalent Conformational Locks for Efficient Polymer Field-Effect Transistors

2016 ◽  
Vol 49 (7) ◽  
pp. 2582-2591 ◽  
Author(s):  
Weifeng Zhang ◽  
Keli Shi ◽  
Jianyao Huang ◽  
Dong Gao ◽  
Zupan Mao ◽  
...  
2005 ◽  
Vol 26 (23) ◽  
pp. 1835-1840 ◽  
Author(s):  
Richard D. Champion ◽  
Kai-Fang Cheng ◽  
Chia-Ling Pai ◽  
Wen-Chang Chen ◽  
Samson A. Jenekhe

2011 ◽  
Vol 1360 ◽  
Author(s):  
Shinuk Cho ◽  
Sangkyu Lee ◽  
Minghong Tong ◽  
Jung Hwa Seo ◽  
Alan J. Heeger

ABSTRACTThe effects of substitute side chain were investigated using donor-acceptor (D-A) conjugated copolymers consisting of a cyclopentadithiophene (CPDT) derivative and dithienyl-benzothiadiazole (DTBT). The intrinsic properties of the copolymers were significantly altered by perturbations of the intramolecular charge transfer (ICT). The absorption of PCPDT-ttOTBTOT (P2), which assumed a tail-tail configuration, tended to blue-shift relative to the absorption of PCPDT-TBTT (P1). The absorption of PCPDT-hhOTBTOT (P3), which assumed a head-head configuration, was blue-shifted relative to that of P2. The electrical transport properties of field-effect transistors (FETs) were sensitive to the side chain position. The field-effect mobility in P2 (μ2=1.8×10–3 cm2/V·s) was slightly lower that in P1 (μ1=4.9×10–3 cm2/V·s). The mobility of P3, however, was very low (μ3=3.8×10–6 cm2/V·s). Photoexcitation spectroscopy showed that the charge generation efficiency (shown in transient absorption spectra) and polaron pair mobility in P1 and P2 were higher than in P3, yielding P1 and P2 device performances that were better than the performance of devices based on P3.


2021 ◽  
Vol 03 (02) ◽  
pp. 303-308
Author(s):  
Dror Ben Abba Amiel ◽  
Choongik Kim ◽  
Ori Gidron

Donor–acceptor–donor (DAD) triad systems are commonly applied as active materials in ambipolar organic field-effect transistors, organic solar cells, and NIR-emitting organic light-emitting diodes. Often, these triads utilize oligothiophenes as donors, whereas their oxygen-containing analogs, oligofurans, are far less studied in this setup. Here we introduce a family of DAD triads in which the donors are oligofurans and the acceptor is benzothiadiazole. In a combined computational and experimental study, we show that these triads display optical bandgaps similar to those of their thiophene analogs, and that a bifuran donor is sufficient to produce emission in the NIR spectral region. The presence of a central acceptor unit increases the photostability of oligofuran-based DAD systems compared with parent oligofurans of the similar length.


2020 ◽  
Vol 53 (18) ◽  
pp. 7740-7748
Author(s):  
Huai-Hsuan Liu ◽  
Shao-Ling Chang ◽  
Kuo-Hsiu Huang ◽  
Fong-Yi Cao ◽  
Kuang-Yi Cheng ◽  
...  

2019 ◽  
Vol 31 (22) ◽  
pp. 9488-9496 ◽  
Author(s):  
Maciej Barłóg ◽  
Xianhe Zhang ◽  
Ihor Kulai ◽  
Da Seul Yang ◽  
Dusan N. Sredojevic ◽  
...  

2020 ◽  
Vol 8 (4) ◽  
pp. 1398-1404
Author(s):  
Guobing Zhang ◽  
Ruikun Chen ◽  
Yue Sun ◽  
Boseok Kang ◽  
Mingxiang Sun ◽  
...  

Two acceptor–donor–acceptor small molecules based on fused ring as donor, and hemi-isoindigo units as acceptors were synthesized and characterized for solution-processed organic field-effect transistors.


2012 ◽  
Vol 22 (39) ◽  
pp. 21238 ◽  
Author(s):  
Shinuk Cho ◽  
Jung Hwa Seo ◽  
Gi-Hwan Kim ◽  
Jin Young Kim ◽  
Han Young Woo

Sign in / Sign up

Export Citation Format

Share Document