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Structural, Electrical and Optical Properties of AlSb Thin Films Deposited by Pulsed Laser Deposition

Author(s): Tang, P (Tang, Ping); Li, B (Li, Bing); Feng, LH (Feng, Lianghuan); Wu, LL (Wu, Lili); Zhang, JQ (Zhang, Jingquan); Li, W (Li, Wei); Zeng, GG (Zeng, Guanggen); Wang, WW (Wang, Wenwu); Liu, C (Liu, Cai)
Source: JOURNAL OF ALLOYS AND COMPOUNDS  Volume: 692  Pages: 22-25  DOI: 10.1016/j.jallcom.2016.09.016  Published: JAN 25 2017 
Abstract: Aluminum antimony (AlSb) is a potential absorber for solar cells. In present work, we fabricated AlSb thin films by using pulsed laser deposition method, and investigated the influence of substrate temperature on the structural, electrical and optical properties of AlSb thin films. The results suggested that the AlSb thin films were crystal when the substrate temperature was higher than 300 degrees C. The average grain size of AlSb films increased and the electrical resistivity decreased with the increase of substrate temperature. At the optimized temperature of 400 degrees C, the optical band gap of AlSb thin film was 1.82eV. The simulated device performance of ZnS/AlSb ultra-thin solar cells showed that the power conversion efficiency was 18.01% and the quantum efficiency values were higher than 55% in the visible range. (C) 2016 Elsevier B.V. All rights reserved.
IDS Number: DZ9WH
ISSN: 0925-8388
eISSN: 1873-4669

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