中国物理B ›› 2010, Vol. 19 ›› Issue (3): 38601-038601.doi: 10.1088/1674-1056/19/3/038601

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Polymer solar cells based on a PEDOT:PSS layer spin-coated under the action of an electric field

夏瑞东1, 冯志慧2, 侯延冰2, 师全民2, 秦丽芳2, 李妍2, 张磊2, 刘小君2, 腾枫2, 王永生2   

  1. (1)Blackett Laboratory, Imperial College London, Prince Consort Road, London SW7 2BZ, UK; (2)Key Laboratory of Luminescence and Optical Information, Ministry of Education; Institute of Optoelectronic Technology, Beijing Jiaotong University, Beijing 100044, China
  • 收稿日期:2009-06-20 修回日期:2009-07-28 出版日期:2010-03-15 发布日期:2010-03-15
  • 基金资助:
    Project supported by the New-Century Training Program Foundation for Talents of the Natural Science (Grant No.~NCET-08-0717), the National Natural Science Foundation of China (Grant Nos.~60777026, 60677007 and 60825407), and the Program of Introducing Talents of Discipline to Universities (Grant No.~B08002).

Polymer solar cells based on a PEDOT:PSS layer spin-coated under the action of an electric field

Feng Zhi-Hui(冯志慧)a), Hou Yan-Bing(侯延冰) a)†, Shi Quan-Min(师全民)a), Qin Li-Fang(秦丽芳)a), Li Yan(李妍)a), Zhang Lei(张磊)a), Liu Xiao-Jun(刘小君) a), Teng Feng(腾枫)a), Wang Yong-Sheng(王永生)a), and Xia Rui-Dong(夏瑞东) b)   

  1. a Key Laboratory of Luminescence and Optical Information, Ministry of Education; Institute of Optoelectronic Technology, Beijing Jiaotong University, Beijing 100044, China; b Blackett Laboratory, Imperial College London, Prince Consort Road, London SW7 2BZ, UK
  • Received:2009-06-20 Revised:2009-07-28 Online:2010-03-15 Published:2010-03-15
  • Supported by:
    Project supported by the New-Century Training Program Foundation for Talents of the Natural Science (Grant No.~NCET-08-0717), the National Natural Science Foundation of China (Grant Nos.~60777026, 60677007 and 60825407), and the Program of Introducing Talents of Discipline to Universities (Grant No.~B08002).

摘要: In the process of fabrication of polymer photovoltaic (PV) devices, poly (3, 4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT:PSS) thin film, acting as an anode buffer layer, is spin-coated under the action of an electric field. The PV devices with a PEDOT:PSS layer spin-coated under the action of a static electric field exhibit improved short-circuit current density (Jsc) and power conversion efficiency (PCE). The investigation of morphology shows that the appropriate intensity of the electric field can increase the roughness of the surface of the PEDOT:PSS layer, which results in improved contact between the anode and hole transport layer and thus enhances the Jsc of the devices. Chemical analysis is also provided by x-ray photoelectron spectroscopy (XPS) spectra.

Abstract: In the process of fabrication of polymer photovoltaic (PV) devices, poly (3, 4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT:PSS) thin film, acting as an anode buffer layer, is spin-coated under the action of an electric field. The PV devices with a PEDOT:PSS layer spin-coated under the action of a static electric field exhibit improved short-circuit current density (Jsc) and power conversion efficiency (PCE). The investigation of morphology shows that the appropriate intensity of the electric field can increase the roughness of the surface of the PEDOT:PSS layer, which results in improved contact between the anode and hole transport layer and thus enhances the Jsc of the devices. Chemical analysis is also provided by x-ray photoelectron spectroscopy (XPS) spectra.

Key words: polymer solar cell, photovoltaic, spin-coating under electric field

中图分类号:  (Photoelectric conversion)

  • 84.60.Jt
68.55.-a (Thin film structure and morphology) 81.15.-z (Methods of deposition of films and coatings; film growth and epitaxy) 82.80.Pv (Electron spectroscopy (X-ray photoelectron (XPS), Auger electron spectroscopy (AES), etc.)) 68.35.B- (Structure of clean surfaces (and surface reconstruction))