Roles of Quinoidal Character and Regioregularity in Determining the Optoelectronic and Photovoltaic Properties of Conjugated Copolymers

2014 ◽  
Vol 47 (18) ◽  
pp. 6252-6259 ◽  
Author(s):  
Tianyue Zheng ◽  
Luyao Lu ◽  
Nicholas E. Jackson ◽  
Sylvia J. Lou ◽  
Lin X. Chen ◽  
...  
Keyword(s):  
Photovoltaic Properties ◽  
Conjugated Copolymers

Synthesis and photovoltaic properties of conjugated copolymers with benzo[1,2-b:4,5-b′]dithiophene and thiadiazolo[3,4-c]pyridine moieties

2013 ◽  
Vol 49 (9) ◽  
pp. 2738-2747 ◽  
Author(s):  
Huaiyin Kang ◽  
Bin Zhao ◽  
Zhencai Cao ◽  
Jun Zhong ◽  
Haohao Li ◽  
...  
Keyword(s):  
Photovoltaic Properties ◽  
Conjugated Copolymers

The effect of different chalcogenophenes in isoindigo-based conjugated copolymers on photovoltaic properties

2014 ◽  
Vol 5 (22) ◽  
pp. 6545-6550 ◽  
Author(s):  
Eui Hyuk Jung ◽  
Seunghwan Bae ◽  
Tae Woong Yoo ◽  
Won Ho Jo
Keyword(s):  
Photovoltaic Properties ◽  
Low Bandgap ◽  
Conjugated Copolymers

Three low bandgap conjugated copolymers based on isoindigo and three different chalcogenophenes (thiophene, selenophene and tellurophene) were synthesized to investigate the effect of different chalcogenophenes on their photovoltaic properties.

Synthesis and photovoltaic properties of dithieno[3,2-b:2′,3′-d]silole-based conjugated copolymers

2015 ◽  
Vol 3 (26) ◽  
pp. 13794-13800 ◽  
Author(s):  
Shanpeng Wen ◽  
Chen Wang ◽  
Pengfei Ma ◽  
Ying-Xuan Zhao ◽  
Chang Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Polymer Solar Cells ◽  
Power Conversion ◽  
Photovoltaic Properties ◽  
Conjugated Copolymers

Efficient polymer solar cells were fabricated by blending PDTS-DTffBT with PC71BM, and the power conversion efficiency reached 5.26%.

Effects of π-Conjugated Bridges on Photovoltaic Properties of Donor-π-Acceptor Conjugated Copolymers

2012 ◽  
Vol 45 (3) ◽  
pp. 1208-1216 ◽  
Author(s):  
Xiaochen Wang ◽  
Yeping Sun ◽  
Song Chen ◽  
Xia Guo ◽  
Maojie Zhang ◽  
...  
Keyword(s):  
Photovoltaic Properties ◽  
Conjugated Copolymers

Synthesis, characterization, photophysical properties, and computational studies on N-hexylphenothiazine/cyanopyridine based π-conjugated copolymers

2021 ◽  
pp. 095400832098875
Author(s):  
Ashraf A El-Shehawy ◽  
Adel M Attia ◽  
Abdul-Rahman IA Abdallah ◽  
Morad M El-Hendawy
Keyword(s):  
Density Functional ◽  
Near Infrared ◽  
Photophysical Properties ◽  
Coupling Reaction ◽  
Molecular Structures ◽  
Degree Of Crystallinity ◽  
Infrared Light ◽  
Photovoltaic Properties ◽  
Near Infrared Light ◽  
Conjugated Copolymers

In this paper, π-conjugated copolymers, namely N-hexylphenothiazine/cyanopyridine/phenyl/benzothiadiazole, N-hexylphenothiazine/cyanopyridine/phenyl/9,9-dihexylfluorene, and N-hexylphenothiazine/cyanopyridine/phenyl/9,9-diethylhexylfluorene were readily synthesized via Pd-catalyzed Suzuki cross-coupling reaction. The polymer structures and their photophysical properties were characterized by elemental analysis, 1H NMR, GPC, TGA, XRD, UV-vis absorption and PL spectroscopy measurements. The coupling agent effect on photophysical properties of copolymers was investigated to rationally design polymers with particular physical properties to be employed in optoelectronic devices. The UV-vis absorption spectroscopy of copolymers showed λmax at a range of ∼334–474 nm and red-shifted in their films to a range of ∼342–381 nm. These copolymers displayed highly intense fluorescence in their solutions and films. The PL spectra of copolymers indicated red and near-infrared light, rendering them a prospect for being red and near-infrared light-emitting materials for PLEDs. XRD analysis demonstrated a d-spacing range of ∼3.79–4.32 Å, reflecting π-π stacking and some degree of crystallinity in some polymers, and only P1 and P2 showed peaks in the small-angle region, indicating lamellar structures. To understand the relationship between molecular structures of target materials and their photophysical and photovoltaic properties, density functional theory (DFT) and its time-dependent form (TD-DFT) were employed.

scholarly journals Synthesis and Photovoltaic Properties of Conjugated Copolymers Bearing bis(9,9-di(2-ethylhexyl)-9H-fluoren-2-yl)quinoxaline Subunit with Deep HOMO Level

2014 ◽  
Vol 26 (18) ◽  
pp. 5959-5966
Author(s):  
Jing Chen ◽  
Xianping Deng ◽  
Daobin Yang ◽  
Erfu Huo ◽  
Yunqing Chen ◽  
...  
Keyword(s):  
Photovoltaic Properties ◽  
Homo Level ◽  
Conjugated Copolymers

Photophysical and photovoltaic properties of truxene-functionalized conjugated polymer–fullerene supramolecular complexes

RSC Advances ◽  
2016 ◽  
Vol 6 (65) ◽  
pp. 60308-60317 ◽  
Author(s):  
Hua-Wen Wen ◽  
Po-Chih Yang
Keyword(s):  
Conjugated Polymer ◽  
Supramolecular Complexes ◽  
Coupling Reactions ◽  
Heck Coupling ◽  
Photovoltaic Properties ◽  
Conjugated Copolymers

We report the photophysical and photovoltaic properties of two truxene-functionalized conjugated copolymers (P1 and P2) containing various 2,1,3-benzothiadiazole segments synthesized through Suzuki and Heck coupling reactions, respectively.

Synergistic effects of an alkylthieno[3,2-b]thiophene π-bridging backbone extension on the photovoltaic performances of donor–acceptor copolymers

2017 ◽  
Vol 5 (21) ◽  
pp. 10269-10279 ◽  
Author(s):  
Hyeongjin Hwang ◽  
Dong Hun Sin ◽  
Chandramouli Kulshreshtha ◽  
Byungho Moon ◽  
Jiwon Son ◽  
...  
Keyword(s):  
Synergistic Effects ◽  
Photovoltaic Properties ◽  
Donor Acceptor ◽  
Conjugated Copolymers

Synergistic effects of a thiophene-based π-bridging backbone extension on the photovoltaic properties of the conjugated copolymers were systematically studied.

New narrow-band-gap conjugated copolymers based on benzodithiophene: Synthesis and photovoltaic properties

2014 ◽  
Vol 56 (1) ◽  
pp. 89-108 ◽  
Author(s):  
M. L. Keshtov ◽  
D. V. Marochkin ◽  
V. S. Kochurov ◽  
P. V. Komarov ◽  
D. Yu. Parashchuk ◽  
...  
Keyword(s):  
Band Gap ◽  
Narrow Band ◽  
Photovoltaic Properties ◽  
Conjugated Copolymers
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