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

doi:10.1088/1674-1056/19/3/038601

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 (J_sc) 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 J_sc of the devices. Chemical analysis is also provided by x-ray photoelectron spectroscopy (XPS) spectra.

Keywords: polymer solar cell photovoltaic spin-coating under electric field

Received: 20 June 2009
Revised: 28 July 2009
Accepted manuscript online:

PACS:	84.60.Jt	(Photoelectric conversion)
	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))

Fund: 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).

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Feng Zhi-Hui(冯志慧), Hou Yan-Bing(侯延冰), Shi Quan-Min(师全民), Qin Li-Fang(秦丽芳), Li Yan(李妍), Zhang Lei(张磊), Liu Xiao-Jun(刘小君), Teng Feng(腾枫), Wang Yong-Sheng(王永生), and Xia Rui-Dong(夏瑞东) Polymer solar cells based on a PEDOT:PSS layer spin-coated under the action of an electric field 2010 Chin. Phys. B 19 038601

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

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