Effects of substituted side-chain position on donor-acceptor conjugated copolymers

2011 ◽  
Vol 49 (8) ◽  
pp. 1821-1829 ◽  
Author(s):  
Sang Kyu Lee ◽  
Shinuk Cho ◽  
Minghong Tong ◽  
Jung Hwa Seo ◽  
Alan J. Heeger
Keyword(s):  
Side Chain ◽  
Donor Acceptor ◽  
Conjugated Copolymers

Effect of substituted side chain on donor-acceptor conjugated copolymers

2008 ◽  
Vol 93 (26) ◽  
pp. 263301 ◽  
Author(s):  
Shinuk Cho ◽  
Jung Hwa Seo ◽  
Sun Hee Kim ◽  
Suhee Song ◽  
Youngeup Jin ◽  
...  
Keyword(s):  
Side Chain ◽  
Donor Acceptor ◽  
Conjugated Copolymers

Effects of Substituted Side Chains on the Optical and Electrical Properties of D-A Conjugated Copolymers

2011 ◽  
Vol 1360 ◽  
Author(s):  
Shinuk Cho ◽  
Sangkyu Lee ◽  
Minghong Tong ◽  
Jung Hwa Seo ◽  
Alan J. Heeger
Keyword(s):  
Electrical Transport ◽  
Field Effect ◽  
Transient Absorption ◽  
Field Effect Transistors ◽  
Blue Shift ◽  
Side Chain ◽  
Electrical Transport Properties ◽  
Charge Generation ◽  
Donor Acceptor ◽  
Conjugated Copolymers

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.

Synthesis, photophysical properties, and computational studies of benzothiadiazole and/or phenothiazine based donor/acceptor π-conjugated copolymers

2021 ◽  
Vol 28 (7) ◽  
Author(s):  
Ashraf A. El-Shehawy ◽  
Morad M. El-Hendawy ◽  
Adel M. Attia ◽  
Abdul-Rahman I. A. Abdallah ◽  
Nabiha I. Abdo
Keyword(s):  
Photophysical Properties ◽  
Computational Studies ◽  
Donor Acceptor ◽  
Conjugated Copolymers

Significant improvement of photocatalytic hydrogen evolution of diketopyrrolopyrrole-based donor–acceptor conjugated polymers through side-chain engineering

2019 ◽  
Vol 10 (47) ◽  
pp. 6473-6480 ◽  
Author(s):  
Ruimin Diao ◽  
Haonan Ye ◽  
Zhicheng Yang ◽  
Shicong Zhang ◽  
Kangyi Kong ◽  
...  
Keyword(s):  
Absorption Spectrum ◽  
Conjugated Polymers ◽  
Hydrogen Evolution ◽  
Evolution Rate ◽  
Side Chain ◽  
Photocatalytic Hydrogen Evolution ◽  
Hydrogen Evolution Rate ◽  
Donor Acceptor

The hydrogen evolution rate of PDPP3B-O4 with butoxy chain was 5.53 mmol h−1 g−1 with 1% Pt loading (λ > 400 nm), increased 110 times than PDPP3B-C8 with octyl chain due to wider absorption spectrum and better wettability via side chain engineering.

Synthesis and photovoltaic properties of a non-fullerene acceptor with F-phenylalkoxy as a side chain

2018 ◽  
Vol 42 (23) ◽  
pp. 19279-19284 ◽  
Author(s):  
Mei Luo ◽  
Zhenzhen Zhang ◽  
Liuliu Feng ◽  
Hongjian Peng ◽  
Lihui Jiang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Side Chain ◽  
Photovoltaic Properties ◽  
Donor Acceptor

A new acceptor–donor–acceptor (A–D–A) non-fullerene acceptor (ITIC-FOR) was synthesized and applied in non-fullerene solar cells with a PCE of up to 7.33%.

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