Title :
Rapid optimization of CdTe(1-x)Sx absorber films and PV devices by means of the combinatorial method
Author :
Hanak, J.J. ; Bykov, E. ; Elgamel, H. ; Grecu, D. ; Putt, J. ; Reiter, N. ; Shvydka, D. ; Powell, R.C.
Author_Institution :
First Solar, LLC-Technol. Center, Perrysburg, OH, USA
Abstract :
This paper reports on the development of alloy absorber films of CdTe(1-x)Sx by means of the combinatorial method (CM) and the vapor transport deposition (VTD). Alloy films of CdTe(1-x)Sx had been shown to be effective as a barrier against inter-diffusion between the semiconductor films, thereby facilitating the use of thin CdS “window” film and leading to enhanced photocurrent and efficiency of PV cells. CM is also used to improve the PV devices by rapid optimization of other film parameters including thickness, deposition temperature, Eg, and surface texture and by making the process suitable for high-throughput PV manufacturing environment
Keywords :
CVD coatings; II-VI semiconductors; cadmium compounds; photoconductivity; semiconductor thin films; solar cells; surface texture; CdTe(1-x)Sx absorber films optimisation; PV cells efficiency; PV devices optimisation; alloy absorber films; combinatorial method; enhanced photocurrent; film deposition temperature; film thickness; high-throughput PV manufacturing environment; inter-diffusion barrier; semiconductor films; surface texture; vapor transport deposition; Conductive films; Lead compounds; Manufacturing processes; Photoconductivity; Photovoltaic cells; Photovoltaic systems; Semiconductor films; Solar power generation; Substrates; Temperature;
Conference_Titel :
Photovoltaic Specialists Conference, 2000. Conference Record of the Twenty-Eighth IEEE
Conference_Location :
Anchorage, AK
Print_ISBN :
0-7803-5772-8
DOI :
10.1109/PVSC.2000.915880
