MOVPE of CuGaSe2 for photovoltaic applications

被引:2
作者
Kampschulte, T [1 ]
Bauknecht, A [1 ]
Blieske, U [1 ]
Saad, M [1 ]
Chichibu, S [1 ]
Lux-Steiner, MC [1 ]
机构
[1] Hahn Meitner Inst Kernforsch Berlin GmbH, Dep FH, D-14109 Berlin, Germany
来源
CONFERENCE RECORD OF THE TWENTY SIXTH IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE - 1997 | 1997年
关键词
D O I
10.1109/PVSC.1997.654110
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
For the development of a CuGaSe2-based solar cell CuGaSe2 epitaxial layers were grown on GaAs(001) substrates by low-pressure metalorganic vapour phase epitaxy (MOVPE) exclusively with metalorganic precursors. X-ray diffraction (XRD) measurements revealed predominantly c[001]-oriented growth. The mean surface roughness was determined to be less than 6nm by atomic force microscopy (AFM). Low-temperature photoluminescence (PL) at 10K was dominated by a defect-correlated emission at 1.627eV. Moreover, it was possible to observe near band-edge emission. All CuGaSe2 layers showed p-type conductivity with net carrier concentrations in the order of 10(17)cm(-3) Hall-mobilities of approximately 30cm(2)/Vs.
引用
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页码:391 / 394
页数:4
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