Efficiency Improvement of Crystalline Solar Cells: Final Subcontract Report; October 2001--December 2004

Weber, E. R.

National Renewable Energy Laboratory (U.S.)

关键词: Synchrotron Radiation;    Multicrystalline Silicon;    Solar Cells;    36 Materials Science;    Efficiency;   

DOI  :  10.2172/15011471
RP-ID  :  NREL/SR-520-37578
RP-ID  :  AC36-99-GO10337
RP-ID  :  15011471

美国|英语

来源: UNT Digital Library

【 摘 要 】

The approach in this subcontract was to use unique analytical tools available at Berkeley to perform systematic fundamental physical studies of the distribution and chemical state of metal clusters in a variety of multicrystalline silicon materials. Two analytical techniques were essential for the success of this project. The total metal concentration in the areas of multicrystalline silicon with high and low lifetime was determined by neutron activation analysis, a technique that involves irradiation of a sample with neutrons in a nuclear reactor and analysis of its residual radioactivity. The distribution and chemical state of metal clusters was characterized by synchrotron radiation-based X-ray microscopes available at the Advanced Light Source (Beamlines 10.3.1 and 10.3.2) at Lawrence Berkeley National Laboratory and Advanced Photon Source (Beamlines 2-ID-D and 20-ID-B) at Argonne National Laboratory.