화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2007년 가을 (10/26 ~ 10/27, 한국과학기술원)
권호 13권 2호, p.2339
발표분야 재료
제목 Studies on electrical and optical properties of ZnO nanorods grown on glass substrates using solution method
초록 ZnO nanorods were grown on glass substrate using aqueous solution method at a temperature of 70 oC. The electrical properties of the nanorods were studied by using ‘In’ contacts as ohmic contacts at different temperatures from 20 to 150 oC and optical properties of nanorods were analyzed at low temperatures. The electrical measurements exhibit that the resistivity of the nanorods decreased with the increase of temperature and the evaluated activation energy of the ZnO nanorods is found to be ~18 eV. The as-grown ZnO nanorods exhibited two photoluminescence peaks: one sharp peak at around 375 nm and other broad peak between 500-800 nm that belong to ZnO phase and impurities present in the lattice, respectively. On the other hand, the intensity of the PL peaks increased with the decrease of temperature up to 120 K and with further decreased of temperature, the intensity of the peaks varied randomly.
저자 코테쉬아라 레디, Ahsanulhaq, 김진환, 한윤봉
소속 전북대
키워드 ZnO nanorods; electrical; optical properties
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