Photogenerated Carrier Transport Properties in Silicon Photovoltaics.

ABSTRACT: Electrical transport parameters for active layers in silicon (Si) wafer solar cells are determined from free carrier optical absorption using non-contacting optical Hall effect measurements. Majority carrier transport parameters [carrier concentration (N), mobility (μ), and conductivity effective mass (m*)] are determined for both the n-type emitter and p-type bulk wafer Si of an industrially produced aluminum back surface field (Al-BSF) photovoltaic device. From measurements under 0 and ±1.48 T external magnetic fields and nominally "dark" conditions, the following respective [n, p]-type Si parameters are obtained: N = [(3.6 ± 0.1) × 10¹⁸ cm^-3, (7.6 ± 0.1) × 10¹⁵ cm^-3]; μ = [166 ± 6 cm²/Vs, 532 ± 12 cm²/Vs]; and m* = [(0.28

SUBMITTER: Uprety P 

PROVIDER: S-EPMC6908689 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature