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Optical properties of ZnO powder prepared by using a proteic sol-gel process

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Abstract

We have studied the optical properties of ZnO powder synthesized by using a proteic sol-gel process with coconut water as the precursor. The energy dispersive X-ray spectrometer and X-ray diffraction results show high purity of the synthesized ZnO powder. From the low-temperature (12 K) and power-dependent PL spectra, the donor-bound exciton, the acceptor-bound exciton, the donor-to-acceptor pair (DAP), and the phonon-replica of the DAP transition have been observed at 3.38, 3.34, 3.26, and 3.19 eV, respectively. The free exciton emission (∼3.3 eV) is also observed at 300 K in the temperature-dependent PL spectra.

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Authors and Affiliations

  1. Research Institute of Basic Sciences, Changwon National University, Changwon, 641-773, Korea

    Bong-Joon Kwon, Hyun-Joo Woo, Ji-Yeon Park & Kiwan Jang

  2. Department of Physics, Graduate School of Nanoscience and Technology (WCU), and KAIST Institute for the NanoCentury, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 305-701, Korea

    Seung-Hyuk Lim & Yong-Hoon Cho

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  1. Bong-Joon Kwon
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  2. Hyun-Joo Woo
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  3. Ji-Yeon Park
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  4. Kiwan Jang
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  5. Seung-Hyuk Lim
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  6. Yong-Hoon Cho
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Correspondence to Kiwan Jang.

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Kwon, BJ., Woo, HJ., Park, JY. et al. Optical properties of ZnO powder prepared by using a proteic sol-gel process. Journal of the Korean Physical Society 62, 739–742 (2013). https://doi.org/10.3938/jkps.62.739

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  • DOI: https://doi.org/10.3938/jkps.62.739

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