Oxidative Segregation of Group V Dopants in CdTe Solar Cells

Conference · Tue Jun 25 00:00:00 EDT 2019

OSTI ID:1530708

Perkins, Craig ^[1]; McCandless, Brian ^[2]; McGott, Deborah L ^[1]; Reese, Matthew O ^[1]; Metzger, Wyatt K ^[1]

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1. National Renewable Energy Laboratory (NREL), Golden, CO (United States)
2. IEC, U. Deleware

Unless the scientific understanding and engineering of CdTe solar cell interfaces improve, the potential efficiency gains from improving the absorber lifetime and hole density will not be realized. We use thermomechanical cleaving, a new method of cleanly exposing interfaces, in conjunction with surface analysis methods to elucidate new aspects of CdTe solar cell structure and function. Liquid nitrogen-based thermomechanical, planar cleaving of devices and test structures in a glove box connected to a cluster tool allows surface spectroscopy of buried interfaces without contamination, oxidation, or perturbation of chemical environment.

• Research Organization: National Renewable Energy Lab. (NREL), Golden, CO (United States)
• Sponsoring Organization: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Solar Energy Technologies Office
• DOE Contract Number: AC36-08GO28308
• OSTI ID: 1530708
• Report Number(s): NREL/PO-5K00-74139
• Resource Relation: Conference: Presented at the IEEE 46th Photovoltaic Specialist Conference (PVSC), 16-21 June 2019, Chicago, Illinois
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
solar
CdTe
photovoltaics
PV
surface spectroscopy
Group V
doping
interface
XPS