Microstructural properties of phosphorus-doped p-type ZnO grown by radio-frequency magnetron sputtering

Min Suk Oh, Dae Kue Hwang, Yong Seok Choi, Jang Won Kang, Seong Ju Park, Chi Sun Hwang, Kyoung Ik Cho

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Abstract

Phosphorus (P)-doped ZnO thin films were grown by radio-frequency magnetron sputtering to study the microstructural properties of p -type ZnO. As-grown P-doped ZnO, a semi-insulator, was converted to p -type ZnO after being annealed at 800 °C in an N2 ambient. X-ray diffraction, secondary-ion-mass spectrometry, and Hall effect measurements indicated that P2O5 phases in as-grown P-doped ZnO disappeared after thermal annealing to form a substitutional P at an O lattice site, which acts as an acceptor in P-doped ZnO. Transmission electron microscopy showed that the formation of stacking faults was facilitated to release the strain in P-doped ZnO during post-thermal annealing.

Original languageEnglish
Article number111905
JournalApplied Physics Letters
Volume93
Issue number11
DOIs
StatePublished - 2008

Bibliographical note

Funding Information:
This work was partially supported by the IT R&D program of MIC/IITA (2006-S079-01, Smart window with transparent electronic devices), the Korea Science and Engineering Foundation (KOSEF) grant funded by the Korea government (MOST) (No. R17-2007-078-01000-0), and the Brain Korea 21 program.

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