Donor-acceptor-integrated conjugated polymers based on carbazole[3,4-c:5,6-c]bis[1,2,5]thiadiazole with tight π-π stacking for photovoltaics

2012 ◽  
Vol 51 (3) ◽  
pp. 565-574 ◽  
Author(s):  
Daijun Zha ◽  
Lie Chen ◽  
Feiyan Wu ◽  
Hongming Wang ◽  
Yiwang Chen
Keyword(s):  
Conjugated Polymers ◽  
Π Stacking ◽  
Donor Acceptor

Donor–acceptor conjugated polymers based on two-dimensional thiophene derivatives for bulk heterojunction solar cells

2017 ◽  
Vol 8 (2) ◽  
pp. 421-430 ◽  
Author(s):  
Xin Dong ◽  
Hongkun Tian ◽  
Zhiyuan Xie ◽  
Yanhou Geng ◽  
Fosong Wang
Keyword(s):  
Solar Cells ◽  
Conjugated Polymers ◽  
Bulk Heterojunction ◽  
Photovoltaic Performance ◽  
Two Dimensional ◽  
Heterojunction Solar Cells ◽  
Bulk Heterojunction Solar Cells ◽  
Π Stacking ◽  
Donor Acceptor ◽  
Thiophene Derivatives

D–A conjugated polymers based on accessible 2D conjugated (E)-1,2-bis(5-alkyl-[2,3′-bithiophen]-2′-yl)ethene units possess low bandgaps, shorter π–π stacking distances, higher mobility and higher photovoltaic performance.

scholarly journals Influence of Backbone Curvature on the Organic Electrochemical Transistor Performance of Glycolated Donor‐Acceptor Conjugated Polymers

2021 ◽  
Author(s):  
Bowen Ding ◽  
Gunwoo Kim ◽  
Youngseok Kim ◽  
Flurin D. Eisner ◽  
Edgar Gutiérrez-Fernández ◽  
...  
Keyword(s):  
Conjugated Polymers ◽  
Electrochemical Transistor ◽  
Donor Acceptor

scholarly journals Backbone Effects on the Thermoelectric Properties of Ultra-Small Bandgap Conjugated Polymers

Polymers ◽  
2021 ◽  
Vol 13 (15) ◽  
pp. 2486
Author(s):  
Dexun Xie ◽  
Jing Xiao ◽  
Quanwei Li ◽  
Tongchao Liu ◽  
Jinjia Xu ◽  
...  
Keyword(s):  
Conjugated Polymers ◽  
Power Factor ◽  
Carrier Mobility ◽  
Polymeric Materials ◽  
Thermoelectric Performance ◽  
Organic Thermoelectric Materials ◽  
Higher Power ◽  
Donor Acceptor ◽  
Maximum Power Factor ◽  
Higher Carrier Mobility

Conjugated polymers with narrower bandgaps usually induce higher carrier mobility, which is vital for the improved thermoelectric performance of polymeric materials. Herein, two indacenodithiophene (IDT) based donor–acceptor (D-A) conjugated polymers (PIDT-BBT and PIDTT-BBT) were designed and synthesized, both of which exhibited low-bandgaps. PIDTT-BBT showed a more planar backbone and carrier mobility that was two orders of magnitude higher (2.74 × 10−2 cm2V−1s−1) than that of PIDT-BBT (4.52 × 10−4 cm2V−1s−1). Both exhibited excellent thermoelectric performance after doping with 2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane, where PIDTT-BBT exhibited a larger conductivity (0.181 S cm−1) and a higher power factor (1.861 μW m−1 K−2) due to its higher carrier mobility. The maximum power factor of PIDTT-BBT reached 4.04 μW m−1 K−2 at 382 K. It is believed that conjugated polymers with a low bandgap are promising in the field of organic thermoelectric materials.

scholarly journals Efficient Inverted Solar Cells Using Benzotriazole-Based Small Molecule and Polymers

Polymers ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 393
Author(s):  
Ja Eun Lee ◽  
Yoon Kim ◽  
Yang Ho Na ◽  
Nam Seob Baek ◽  
Jae Woong Jung ◽  
...  
Keyword(s):  
Solar Cell ◽  
Conjugated Polymers ◽  
Power Conversion ◽  
High Energy ◽  
Photovoltaic Properties ◽  
Device Structures ◽  
Donor Acceptor ◽  
Medium Band ◽  
Inverted Solar Cell ◽  
Conventional Device

We synthesized medium-band-gap donor-acceptor (D-A) -type conjugated polymers (PBTZCZ-L and PBTZCZ-H) consisting of a benzotriazole building block as an acceptor and a carbazole unit as a donor. In comparison with the polymers, a small conjugated molecule (BTZCZ-2) was developed, and its structural, thermal, optical, and photovoltaic properties were investigated. The power conversion efficiency (PCE) of the BTZCZ-2-based solar cell devices was less than 0.5%, considerably lower than those of polymer-based devices with conventional device structures. However, inverted solar cell devices configured with glass/ITO/ZnO:PEIE/BTZCZ-2:PC71BM/MoO3/Ag showed a tremendously improved efficiency (PCE: 5.05%, Jsc: 9.95 mA/cm2, Voc: 0.89 V, and FF: 57.0%). We believe that this is attributed to high energy transfer and excellent film morphologies.

Dynamics of Preaggregation and Film Formation of Donor–Acceptor π-Conjugated Polymers

2021 ◽  
pp. 205-211
Author(s):  
Yuta Yabuuchi ◽  
Yu Minowa ◽  
Shuichi Nagamatsu ◽  
Akihiko Fujii ◽  
Masanori Ozaki
Keyword(s):  
Conjugated Polymers ◽  
Film Formation ◽  
Donor Acceptor

Band-gap tuning of carbazole-containing donor–acceptor type conjugated polymers by acceptor moieties and π-spacer groups

Polymer ◽  
2008 ◽  
Vol 49 (1) ◽  
pp. 192-199 ◽  
Author(s):  
Tsuyoshi Michinobu ◽  
Kensuke Okoshi ◽  
Haruka Osako ◽  
Hiroe Kumazawa ◽  
Kiyotaka Shigehara
Keyword(s):  
Conjugated Polymers ◽  
Band Gap ◽  
Donor Acceptor ◽  
Band Gap Tuning

Donor–Acceptor Conjugated Polymers Based on Bisisoindigo: Energy Level Modulation toward Unipolar n-Type Semiconductors

2018 ◽  
Vol 51 (21) ◽  
pp. 8652-8661 ◽  
Author(s):  
Fangzheng Chen ◽  
Yu Jiang ◽  
Ying Sui ◽  
Jidong Zhang ◽  
Hongkun Tian ◽  
...  
Keyword(s):  
Energy Level ◽  
Conjugated Polymers ◽  
Donor Acceptor
Sign in / Sign up

Export Citation Format

Share Document