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Title: Controlling the stoichiometry and doping of semiconductor materials

Patent ·
OSTI ID:1295614

Methods for treating a semiconductor material are provided. According to an aspect of the invention, the method includes annealing the semiconductor material in the presence of a compound that includes a first element and a second element. The first element provides an overpressure to achieve a desired stoichiometry of the semiconductor material, and the second element provides a dopant to the semiconductor material.

Research Organization:
National Renewable Energy Laboratory (NREL), Golden, CO (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC36-08GO28308
Assignee:
Alliance for Sustainable Energy, LLC (Golden, CO)
Patent Number(s):
9,419,170
Application Number:
14/615,068
OSTI ID:
1295614
Resource Relation:
Patent File Date: 2015 Feb 05
Country of Publication:
United States
Language:
English

References (2)

Dependence of the Minority-Carrier Lifetime on the Stoichiometry of CdTe Using Time-Resolved Photoluminescence and First-Principles Calculations journal August 2013
Advances in control of doping and lifetime in single-crystal and polycrystalline CdTe conference June 2014