Processing of CuInSe{sub 2}-based solar cells: Characterization of deposition processes in terms of chemical reaction analyses. Phase 2 Annual Report, 6 May 1996--5 May 1997

Technical Report · Wed Oct 20 00:00:00 EDT 1999

DOI:https://doi.org/10.2172/751055· OSTI ID:751055

Anderson, T

This report describes research performed by the University of Florida during Phase 2 of this subcontract. First, to study CIGS, researchers adapted a contactless, nondestructive technique previously developed for measuring photogenerated excess carrier lifetimes in SOI wafers. This dual-beam optical modulation (DBOM) technique was used to investigate the differences between three alternative methods of depositing CdS (conventional chemical-bath deposition [CBD], metal-organic chemical vapor deposition [MOCVD], and sputtering). Second, a critical assessment of the Cu-In-Se thermochemical and phase diagram data using standard CALPHAD procedures is being performed. The outcome of this research will produce useful information on equilibrium vapor compositions (required annealing ambients, Sex fluxes from effusion cells), phase diagrams (conditions for melt-assisted growth), chemical potentials (driving forces for diffusion and chemical reactions), and consistent solution models (extents of solid solutions and extending phase diagrams). Third, an integrated facility to fabricate CIS PV devices was established that includes migration-enhanced epitaxy (MEE) for deposition of CIS, a rapid thermal processing furnace for absorber film formation, sputtering of ZnO, CBD or MOCVD of CdS, metallization, and pattern definition.

• Research Organization: National Renewable Energy Lab. (NREL), Golden, CO (United States)
• Sponsoring Organization: US Department of Energy (US)
• DOE Contract Number: AC36-99GO10337
• OSTI ID: 751055
• Report Number(s): NREL/SR-520-27296; TRN: AH200006%%78
• Resource Relation: Other Information: PBD: 20 Oct 1999
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
COPPER SELENIDE SOLAR CELLS
INDIUM SELENIDE SOLAR CELLS
PROGRESS REPORT
NONDESTRUCTIVE TESTING
CHEMICAL COATING
SPUTTERING
PHASE DIAGRAMS
THERMOCHEMICAL DIAGRAMS
RESEARCH PROGRAMS
FABRICATION
PHOTOVOLTAICS
CUINSE2
DEPOSITION PROCESSES
CHEMICAL BATH DEPOSITION
BUFFER-LAYER PROCESSING
THERMOCHEMISTRY
PHASE EQUILIBRIA
DEVICE PROCESSING
PV
MOCVD
CIS