Shallow donor state of hydrogen in In2O3 and SnO2: Implications for conductivity in transparent conducting oxides

Journal article

Muonium, and by analogy hydrogen, is shown to form a shallow-donor state in In2 O3 and SnO2. The paramagnetic charge state is stable below ∼50 K in In2 O3 and ∼30 K in SnO2 which, coupled with its extremely small effective hyperfine splitting in both cases, allows its identification as the shallow-donor state. This has important implications for the controversial issue of the origins of conductivity in transparent conducting oxides. © 2009 The American Physical Society.

Authors: King, P; Lichti, R; Celebi, Y; Gil, J; Vilao, R

• Publication status: Published
• Journal: Physical Review B
• Volume: 80
• Issue: 8
• Publication date: 2009-08-01
• DOI: 10.1103/PhysRevB.80.081201
• EISSN: 1550-235X
• ISSN: 1098-0121
• Language: English
• Keywords: semiconductor materials; hydrogen; indium compounds; muonium; tin compounds; impurity states; paramagnetic materials; hyperfine interactions; electrical conductivity