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A simple optical properties modeling of microcrystalline silicon by the effective medium approximation method

Book ·
OSTI ID:527739
;  [1];  [2]
  1. KAIST, Taejon (Korea, Republic of). Dept. of Electrical Engineering
  2. KRISS, Taejon (Korea, Republic of). Dept. of Optics Lab.
The optical properties of microcrystalline silicon ({micro}c-Si) were estimated using the EMA (Effective Medium Approximation) method. This modeling was based on two-phase mixture, amorphous silicon (a-Si) and crystalline silicon (c-Si) with volume fractions of f{sub a} and f{sub c} respectively. From this modeling, it could be possible to understand that {micro}c-Si has lower light absorption characteristics than a-Si over all solar spectrum by considering hydrogen involvement is embedded a-Si part of {micro}c-Si and crystalline volume fraction. Also, it is proposed that p-type {micro}c-Si is superior to n-type {micro}c-Si because of its high optical gap of E{sub o4} and its low absorption coefficient spectrum shape.
OSTI ID:
527739
Report Number(s):
CONF-960401--; ISBN 1-55899-323-1
Country of Publication:
United States
Language:
English