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Title: Enhanced quantum efficiency of amorphous silicon thin film solar cells with the inclusion of a rear-reflector thin film

We investigated the growth mechanism of amorphous silicon thin films by implementing hot-wire chemical vapor deposition and fabricated thin film solar cell devices. The fabricated cells showed efficiencies of 7.5 and 8.6% for the samples without and with the rear-reflector decomposed by sputtering, respectively. The rear-reflector enhances the quantum efficiency in the infrared spectral region from 550 to 750 nm. The more stable quantum efficiency of the sample with the inclusion of a rear-reflector than the sample without the rear-reflector due to the bias effect is related to the enhancement of the short circuit current.
Authors:
 [1] ;  [2] ; ; ;  [3] ;  [1]
  1. Department of Mechanical Engineering, Chonbuk National University, Jeonju 561-756 (Korea, Republic of)
  2. (Korea, Republic of)
  3. Energy Conversions Technology Center, Korea Institute of Industrial Technology, Cheonan 331-825 (Korea, Republic of)
Publication Date:
OSTI Identifier:
22283130
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 104; Journal Issue: 7; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; AMORPHOUS STATE; CHEMICAL VAPOR DEPOSITION; ELECTRIC CURRENTS; INCLUSIONS; INFRARED SPECTRA; QUANTUM EFFICIENCY; SILICON; SOLAR CELLS; SPUTTERING; THIN FILMS