Increased open circuit voltage in fluorinated benzothiadiazole-based alternating conjugated polymers

2011 ◽  
Vol 47 (39) ◽  
pp. 11026 ◽  
Author(s):  
Yong Zhang ◽  
Shang-Chieh Chien ◽  
Kung-Shih Chen ◽  
Hin-Lap Yip ◽  
Ying Sun ◽  
...  
Keyword(s):  
Conjugated Polymers ◽  
Open Circuit Voltage ◽  
Open Circuit

scholarly journals Synthesis and Photovoltaic Effect of Electron-Withdrawing Units for Low Band Gap Conjugated Polymers Bearing Bi(thienylenevinylene) Side Chains

Polymers ◽  
2019 ◽  
Vol 11 (9) ◽  
pp. 1461 ◽  
Author(s):  
Jianfeng Li ◽  
Yufei Wang ◽  
Ningning Wang ◽  
Zezhou Liang ◽  
Xu Wang ◽  
...  
Keyword(s):  
Conjugated Polymers ◽  
Open Circuit Voltage ◽  
Photovoltaic Effect ◽  
Photovoltaic Performance ◽  
Hole Mobility ◽  
Open Circuit ◽  
Photovoltaic Devices ◽  
Good Thermal Stability ◽  
Highest Occupied Molecular Orbital ◽  
Donor Acceptor

A novel (E)-5-(2-(5-alkylthiothiophen-2-yl)vinyl)thien-2-yl (TVT)-comprising benzo[1,2-b:4,5-b’]dithiophene (BDT) derivative (BDT-TVT) was designed and synthetized to compose two donor-acceptor (D-A) typed copolymers (PBDT-TVT-ID and PBDT-TVT-DTNT) with the electron-withdrawing unit isoindigo (ID) and naphtho[1,2-c:5,6-c′]bis[1,2,5]thiadiazole (NT), respectively. PBDT-TVT-ID and PBDT-TVT-DTNT showed good thermal stability (360 °C), an absorption spectrum from 300 nm to 760 nm and a relatively low lying energy level of Highest Occupied Molecular Orbital (EHOMO) (−5.36 to –5.45 eV), which could obtain a large open-circuit voltage (Voc) from photovoltaic devices with PBDT-TVT-ID or PBDT-TVT-DTNT. The photovoltaic devices with ITO/PFN/polymers: PC71BM/MoO3/Ag structure were assembled and exhibited a good photovoltaic performance with a power conversion efficiency (PCE) of 4.09% (PBDT-TVT-ID) and 5.44% (PBDT-TVT-DTNT), respectively. The best PCE of a PBDT-TVT-DTNT/PC71BM-based device mainly originated from its wider absorption, higher hole mobility and favorable photoactive layer morphology.

Incorporating a vertical BDT unit in conjugated polymers for drastically improving the open-circuit voltage of polymer solar cells

2016 ◽  
Vol 40 (6) ◽  
pp. 5300-5305 ◽  
Author(s):  
Shuguang Wen ◽  
Manjun Xiao ◽  
Wenfei Shen ◽  
Chuantao Gu ◽  
Dangqiang Zhu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Conjugated Polymers ◽  
Open Circuit Voltage ◽  
Polymer Solar Cells ◽  
Open Circuit ◽  
Open Circuit Voltages

High open circuit voltages (Vocs) of over 1.0 V were obtained for solar cell devices based on vertical BDT-containing conjugated polymers.

Efficiency Exceeding 11% in Tandem Polymer Solar Cells Employing High Open-Circuit Voltage Wide-Bandgap π-Conjugated Polymers

2017 ◽  
Vol 7 (21) ◽  
pp. 1700782 ◽  
Author(s):  
Seyeong Song ◽  
Kakaraparthi Kranthiraja ◽  
Jungwoo Heo ◽  
Taehyo Kim ◽  
Bright Walker ◽  
...  
Keyword(s):  
Solar Cells ◽  
Conjugated Polymers ◽  
Open Circuit Voltage ◽  
Polymer Solar Cells ◽  
Wide Bandgap ◽  
Open Circuit

n-Type pyromellitic diimide-benzodithiophene-containing conjugated polymers for all-polymer solar cells with high open-circuit voltage

2014 ◽  
Vol 196 ◽  
pp. 110-116 ◽  
Author(s):  
Chunhua Luo ◽  
Xiangjian Meng ◽  
Li Han ◽  
Shuo Sun ◽  
Tie Lin ◽  
...  
Keyword(s):  
Solar Cells ◽  
Conjugated Polymers ◽  
Open Circuit Voltage ◽  
Polymer Solar Cells ◽  
Open Circuit

Anthracene-Containing Wide-Band-Gap Conjugated Polymers for High-Open-Circuit-Voltage Polymer Solar Cells

2013 ◽  
Vol 34 (14) ◽  
pp. 1163-1168 ◽  
Author(s):  
Xue Gong ◽  
Cuihong Li ◽  
Zhen Lu ◽  
Guangwu Li ◽  
Qiang Mei ◽  
...  
Keyword(s):  
Solar Cells ◽  
Conjugated Polymers ◽  
Band Gap ◽  
Open Circuit Voltage ◽  
Polymer Solar Cells ◽  
Wide Band ◽  
Open Circuit ◽  
Wide Band Gap

scholarly journals 6,7-dialkoxy-2,3-diphenylquinoxaline based conjugated polymers for solar cells with high open-circuit voltage

2013 ◽  
Vol 31 (6) ◽  
pp. 901-911 ◽  
Author(s):  
Zhen Lu ◽  
Cui-hong Li ◽  
Chun Du ◽  
Xue Gong ◽  
Zhi-shan Bo
Keyword(s):  
Solar Cells ◽  
Conjugated Polymers ◽  
Open Circuit Voltage ◽  
Open Circuit

Improvement of open-circuit voltage and photovoltaic properties of 2D-conjugated polymers by alkylthio substitution

2014 ◽  
Vol 7 (7) ◽  
pp. 2276-2284 ◽  
Author(s):  
Chaohua Cui ◽  
Wai-Yeung Wong ◽  
Yongfang Li
Keyword(s):  
Conjugated Polymers ◽  
Conjugated Polymer ◽  
Open Circuit Voltage ◽  
Open Circuit ◽  
Side Chain ◽  
Photovoltaic Properties ◽  
Conjugated Copolymer

The photovoltaic properties of 2D-conjugated copolymer PBDTTTs were further improved by side chain engineering in a 2D-conjugated polymer.

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