Synthesis, photophysical and photovoltaic properties of a new class of two-dimensional conjugated polymers containing donor–acceptor chromophores as pendant groups

2013 ◽  
Vol 4 (11) ◽  
pp. 3333 ◽  
Author(s):  
Yu-Ying Lai ◽  
Yen-Ju Cheng ◽  
Chiu-Hsiang Chen ◽  
Sheng-Wen Cheng ◽  
Fong-Yi Cao ◽  
...  
Polymers ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 393
Author(s):  
Ja Eun Lee ◽  
Yoon Kim ◽  
Yang Ho Na ◽  
Nam Seob Baek ◽  
Jae Woong Jung ◽  
...  

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.


2012 ◽  
Vol 45 (23) ◽  
pp. 9282-9291 ◽  
Author(s):  
Huan-Hsuan Chang ◽  
Che-En Tsai ◽  
Yu-Ying Lai ◽  
De-Yang Chiou ◽  
So-Lin Hsu ◽  
...  

RSC Advances ◽  
2016 ◽  
Vol 6 (72) ◽  
pp. 67976-67985 ◽  
Author(s):  
Chuen-Yo Hsiow ◽  
Yu-Hsiang Lin ◽  
Rathinam Raja ◽  
Syang-Peng Rwei ◽  
Wen-Yen Chiu ◽  
...  

Molecular engineering on the conjugated side chains of two-dimensional (2D) conjugated polymers was conducted and its effect on the optical, electronic, self-assembly and photovoltaic properties was investigated.


2003 ◽  
Vol 125 (28) ◽  
pp. 8625-8638 ◽  
Author(s):  
Edda E. Neuteboom ◽  
Stefan C. J. Meskers ◽  
Paul A. van Hal ◽  
Jeroen K. J. van Duren ◽  
E. W. Meijer ◽  
...  

2017 ◽  
Vol 30 (6) ◽  
pp. 677-687
Author(s):  
Zhiguan Lin ◽  
Gang Wei ◽  
Ling Li ◽  
Zhenhuan Lu ◽  
Jiefeng Hai ◽  
...  

To investigate the effect of different carbon hybridization in 9H-fluorene on the resultant polymers, a series of donor–acceptor conjugated polymers have been synthesized by copolymerizing substituted 9H-fluorenes with triazoloquinoxaline. All polymers exhibit good solution-processability and broad absorption in 350–1000 nm region with narrow optical bandgaps ranging from 1.27 eV to 1.55 eV. The results indicate that fluorene functionalization via different carbon hybridization on 9-position could be an effective strategy to fine-tune the absorption, energy levels, and photovoltaic performance of the polymers. 9-Position sp2-hybridized carbon in fluorene could enhance absorption of ultraviolet-visible and form good morphology of blending layers, through its planar rigid structure. All polymer solar cells devices exhibited moderate performance with the best power conversion efficiency of 3.02% achieved based on P2. Compared to ladder-type multifused fluorene, carbon-hybridized 9H-fluorene units can be a very useful building block for constructing narrow bandgap polymers with facile synthesis, and even interesting optoelectronic properties.


2015 ◽  
Vol 48 (19) ◽  
pp. 6994-7006 ◽  
Author(s):  
Yu-Ying Lai ◽  
Huan-Hsuan Chang ◽  
Yun-Yu Lai ◽  
Wei-Wei Liang ◽  
Che-En Tsai ◽  
...  

2012 ◽  
Vol 45 (5) ◽  
pp. 571-575 ◽  
Author(s):  
Lingyan Liao ◽  
Wei Zhang ◽  
Zuo Xiao ◽  
Jiamin Cao ◽  
Zhanpeng Liu ◽  
...  

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