skip to main content

Title: Effect of heat treatments and window layer processing on the characteristics of CuInGaSe{sub 2} thin film solar cells

Interaction between chemical bath deposited CdS and ZnO window layers are a focus of this paper. Low temperature anneals were used to follow the changes at the interface. Optical absorption spectra show that CdS and ZnO intermix upon annealing. When applied to ZnO/CdS/CuInGaSe{sub 2} thin film solar cells, changes in the short and long wavelength response were observed. The latter is attributed to an increase in the energy gap of the absorber by diffusion of S. The interdiffusion is shown to increase the short wavelength collection, and hence the current density of the devices. Photoluminescence data provides some indication of the quality of the interface.
Authors:
; ;  [1]
  1. National Renewable Energy Lab., Golden, CO (United States) [and others
Publication Date:
OSTI Identifier:
416131
Report Number(s):
NREL/TP--410-21091; CONF-960513--
ON: DE96007880; TRN: 96:006561-0027
DOE Contract Number:
AC36-83CH10093
Resource Type:
Conference
Resource Relation:
Conference: 25. photovoltaic solar energy conference, Washington, DC (United States), 13-17 May 1996; Other Information: PBD: May 1996; Related Information: Is Part Of NREL preprints for the photovoltaic specialists conference of IEEE twenty-five; Gwinner, D. [ed.]; PB: 172 p.
Research Org:
National Renewable Energy Lab., Golden, CO (United States)
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; INTERFACES; DIFFUSION; CASCADE SOLAR CELLS; HEAT TREATMENTS; THIN FILMS; CADMIUM SULFIDES; ZINC OXIDES; COPPER SELENIDES; INDIUM SELENIDES; GALLIUM SELENIDES; ENERGY GAP