Open AccessEfficient Polymer Solar Cells with Open-Circuit Voltage of 1.01 V and Power Conversion Efficiency of 8.09%
Author(s) -
Simei Zeng,
Hui-Xin Qi,
Bohan Yu,
Xiaoling Ma,
Miao Zhang,
Jian Wang,
Fujun Zhang
Publication year - 2018
Publication title -
acs omega
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.779
H-Index - 40
ISSN - 2470-1343
DOI - 10.1021/acsomega.8b01925
Subject(s) - energy conversion efficiency , materials science , photovoltaic system , open circuit voltage , short circuit , polymer , voltage , doping , optoelectronics , current density , polymer solar cell , phase (matter) , chemical engineering , analytical chemistry (journal) , electrical engineering , chromatography , composite material , chemistry , organic chemistry , physics , quantum mechanics , engineering
A series of polymer solar cells (PSCs) were prepared with different solvent additive 1-chloronaphthalene (CN) doping volume ratio to adjust the phase separation of active layers. The optimized PSCs exhibit a power conversion efficiency (PCE) of 8.09%, along with an open-circuit voltage of 1.01 V, a short circuit current density of 13.64 mA cm -2 , and a fill factor of 58.70%. All the key photovoltaic parameters of PSCs can be simultaneously increased by incorporating 1.0 vol % CN in blend solutions due to the optimized phase separation of active layers assisted by the volatilization of CN. Over 24% PCE improvement can be obtained by incorporating 1.0 vol % CN, indicating that the dynamic process of film forming should play the vital role in determining the performance of PSCs.
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