Manipulating hybrid structures of polymer/a-Si for thin film solar cells

Journal Article · Mon Mar 10 00:00:00 EDT 2014 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4867474· OSTI ID:22257749

Peng, Ying; He, Zhiqun; Zhang, Zhi; Liang, Chunjun ^[1]; Diyaf, Adel; Ivaturi, Aruna; Wilson, John I. B., ^[2]

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1. Key Laboratory of Luminescence and Optical Information, Ministry of Education, Institute of Optoelectronic Technology, Beijing Jiaotong University, Beijing 100044 (China)
2. SUPA, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh EH14 4AS (United Kingdom)

A series of uniform polymer/amorphous silicon hybrid structures have been fabricated by means of solution-casting for polymer and radio frequency excited plasma enhanced chemical vapour deposition for amorphous silicon (a-Si:H). Poly(3,4-ethylene dioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) functioned as a photoactive donor, while the silicon layer acted as an acceptor. It is found that matching the hole mobility of the polymer to the electron mobility of amorphous silicon is critical to improve the photovoltaic performance from hybrid cells. A three-layer p-i-n structure of ITO/PEDOT:PSS(200 nm)/i-Si(450 nm)/n-Si(200 nm)/Al with a power conversion efficiency of 4.78% under a standard test condition was achieved.

• OSTI ID: 22257749
• Journal Information: Applied Physics Letters, Vol. 104, Issue 10; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CHEMICAL VAPOR DEPOSITION
EFFICIENCY
ELECTRON MOBILITY
ETHYLENE
HYBRIDIZATION
PHOTOVOLTAIC EFFECT
POLYMERS
RADIOWAVE RADIATION
SILICON
STYRENE
THIN FILMS