Dependence of the optical properties on the substrate temperature in ZnO thin films grown on flexible polyimide substrates
- Authors
- Leem, Jae Hyeon; Son, Dong Ick; Kim, Su Youn; Kim, Tae Whan; Choi, Won Kock
- Issue Date
- Jul-2008
- Publisher
- KOREAN PHYSICAL SOC
- Keywords
- ZnO; polyimide; optical property
- Citation
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.53, no.1, pp.347 - 350
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY
- Volume
- 53
- Number
- 1
- Start Page
- 347
- End Page
- 350
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/178180
- DOI
- 10.3938/jkps.53.347
- ISSN
- 0374-4884
- Abstract
- The optical properties of ZnO thin films grown on flexible polyimide (PI) substrates at various temperatures were investigated. X-ray diffraction patterns showed that the ZnO thin films grown on PI substrates had a c-axis preferential orientation. Photoluminescence (PL) spectra showed that the peaks at 3.32 and 3.36 eV could be attributed to the near band-edge emissions of the excitons bound to acceptors and of excitons bound to donors, respectively and that the peak at 3.24 eV was related to the donor-acceptor pair transitions. The activation energies of the excitons bound to neutral native donors, as obtained from the temperature-dependent PL spectra, were 10 and 85 meV, respectively.
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