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Title: Electronic Structure and Doping of P-Type Transparent Conducting Oxides: Preprint

Transparent conducting oxides (TCOs) are a group of materials that are widely used in solar cells and other optoelectronic devices. Recently, Cu-containing p-type TCOs such as MII Cu2 O2 (MIII=Mg, Ca, Sr, Ba) and CuMIII O2 (MIII=Al, Ga, In) have been proposed. Using first-principles band structure methods, we have systematically studied the electronic and optical properties of these p-type transparent oxides. For MII Cu2 O2 , we predict that adding a small amount of Ca into Sr Cu2 O2 can increase the transparency and conductivity. For CuMIII O2 , we explained the doping and band gap anomalies in this system and proposed a new approach to search for bipolar dopable wide-gap materials.
Authors:
; ;
Publication Date:
OSTI Identifier:
15007051
Report Number(s):
NREL/CP-520-32199
TRN: US200413%%100
DOE Contract Number:
AC36-99-GO10337
Resource Type:
Conference
Resource Relation:
Conference: Conference title not supplied, Conference location not supplied, Conference dates not supplied; Other Information: PBD: 1 May 2002; Related Information: Prepared for the 29th IEEE PV Specialists Conference, 20-24 May
Research Org:
National Renewable Energy Lab., Golden, CO. (US)
Sponsoring Org:
US Department of Energy (US)
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; 36 MATERIALS SCIENCE; ELECTRONIC STRUCTURE; OPTICAL PROPERTIES; OXIDES; SOLAR CELLS; SOLAR ENERGY PV; TRANSPARENT CONDUCTING OXIDES (TCOS); OPTOELECTRONIC DEVICES; BANDGAP ANOMALIES; LINEARIZED AUGMENTED PLANE WAVE (LAPW); SPIN-ORBIT COUPLING; CRYSTAL STRUCTURE; SOLAR ENERGY - PHOTOVOLTAICS