中国物理B ›› 2016, Vol. 25 ›› Issue (2): 28402-028402.doi: 10.1088/1674-1056/25/2/028402
• INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY • 上一篇 下一篇
Jian-Feng Li(李建丰), Chuang Zhao(赵创), Heng Zhang(张恒), Jun-Feng Tong(同军锋), Peng Zhang(张鹏), Chun-Yan Yang(杨春燕), Yang-Jun Xia(夏养君), Duo-Wang Fan(范多旺)
Jian-Feng Li(李建丰), Chuang Zhao(赵创), Heng Zhang(张恒), Jun-Feng Tong(同军锋), Peng Zhang(张鹏), Chun-Yan Yang(杨春燕), Yang-Jun Xia(夏养君), Duo-Wang Fan(范多旺)
摘要:
In this paper, we investigate the effects of glycerol doping on transmittance, conductivity and surface morphology of poly(3,4-ethylene dioxythiophene):poly(styrene sulfonate)) (PEDOT:PSS) and its influence on the performance of perovskite solar cells.The conductivity of PEDOT:PSS is improved obviously by doping glycerol. The maximum of the conductivity is 0.89 S/cm when the doping concentration reaches 6 wt%, which increases about 127 times compared with undoped. The perovskite solar cells are fabricated with a configuration of indium tin oxide (ITO)/PEDOT:PSS/CH3NH3PbI3/PC61BM/Al, where PEDOT:PSS and PC61BM are used as hole and electron transport layers, respectively. The results show an improvement of hole charge transport as well as an increase of short-circuit current density and a reduction of series resistance, owing to the higher conductivity of the doped PEDOT:PSS. Consequently, it improves the whole performance of perovskite solar cell. The power conversion efficiency (PCE) of the device is improved from 8.57% to 11.03% under AM 1.5 G (100 mW/cm2 illumination) after the buffer layer has been modified.
中图分类号: (Photoelectric conversion)