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Title: Transmutation doping of silicon solar cells

Abstract

Normal isotopic silicon contains 3.05 percent of /sup 30/Si which transmutes to /sup 31/P after thermal neutron absorption, with a half-life of 2.6 hours. This reaction can be used to introduce extremely uniform concentrations of phosphorus into silicon, thus eliminating the areal and spatial inhomogeneities characteristic of chemical doping. Annealing of the lattice damage in the irradiated silicon does not alter the uniformity of dopant distribution. Transmutation doping also makes it possible to introduce phosphorus into polycrystalline silicon without segregation of the dopant at the grain boundaries. The use of neutron transmutation doped (NTD) silicon in solar cell research and development is discussed.

Authors:
; ; ;
Publication Date:
Research Org.:
Oak Ridge National Lab., TN (USA)
OSTI Identifier:
7322516
Report Number(s):
CONF-770439-1
DOE Contract Number:  
W-7405-ENG-26
Resource Type:
Conference
Resource Relation:
Conference: High efficiency radiation damage silicon solar cell meeting, Cleveland, OH, USA, 28 Apr 1977
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; SILICON; CRYSTAL DOPING; SILICON SOLAR CELLS; CAPTURE; DOPED MATERIALS; IMPURITIES; NEUTRON REACTIONS; PHOSPHORUS 31; BARYON REACTIONS; DIRECT ENERGY CONVERTERS; ELEMENTS; HADRON REACTIONS; ISOTOPES; LIGHT NUCLEI; NUCLEAR REACTIONS; NUCLEI; NUCLEON REACTIONS; ODD-EVEN NUCLEI; PHOSPHORUS ISOTOPES; PHOTOELECTRIC CELLS; PHOTOVOLTAIC CELLS; SEMIMETALS; SOLAR CELLS; STABLE ISOTOPES; 140501* - Solar Energy Conversion- Photovoltaic Conversion

Citation Formats

Wood, R F, Westbrook, R D, Young, R T, and Cleland, J W. Transmutation doping of silicon solar cells. United States: N. p., 1977. Web.
Wood, R F, Westbrook, R D, Young, R T, & Cleland, J W. Transmutation doping of silicon solar cells. United States.
Wood, R F, Westbrook, R D, Young, R T, and Cleland, J W. 1977. "Transmutation doping of silicon solar cells". United States.
@article{osti_7322516,
title = {Transmutation doping of silicon solar cells},
author = {Wood, R F and Westbrook, R D and Young, R T and Cleland, J W},
abstractNote = {Normal isotopic silicon contains 3.05 percent of /sup 30/Si which transmutes to /sup 31/P after thermal neutron absorption, with a half-life of 2.6 hours. This reaction can be used to introduce extremely uniform concentrations of phosphorus into silicon, thus eliminating the areal and spatial inhomogeneities characteristic of chemical doping. Annealing of the lattice damage in the irradiated silicon does not alter the uniformity of dopant distribution. Transmutation doping also makes it possible to introduce phosphorus into polycrystalline silicon without segregation of the dopant at the grain boundaries. The use of neutron transmutation doped (NTD) silicon in solar cell research and development is discussed.},
doi = {},
url = {https://www.osti.gov/biblio/7322516}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1977},
month = {4}
}

Conference:
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