화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2015년 가을 (10/21 ~ 10/23, 일산 KINTEX)
권호 21권 2호, p.2117
발표분야 재료
제목 Band Alignment Effect in Ag-CuO/CuO MQWs Fabricated by All Step Solution Process
초록     Copper oxide (CuO) is an extensively studied semiconductor with a narrow and indirect energy band-gap of 1.2-1.8 eV. CuO has attracted a lot of research interest due to its unique properties and wide variety of morphologies in the nano regime that can be grown by tuning the growth habit of the CuO crystal. Combinations of silver-CuO (Ag-CuO) nanostructures have been utilized to enhance the performance of various applications. The spatial quantum confinement excitons in semiconductor lead to tailor the desire emission wavelength in quantum wells. In this regards, Ag-CuO/CuO MQWs were fabricated on glass substrate via low cost solution process with film thickness of 50 to 300 nm for Ag-CuO and CuO films. Furthermore, the samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), UV-vis absorption, photoluminescence (PL) and hall-measurement. We observed an absorption transitions shift to higher energy in Ag-CuO/CuO thin films, which is an indication of the presence of strong quantum confinement effect.
저자 한윤봉1, Ahmad Rafiq2, MUHAMMAD YASIR1
소속 1전북대, 2Chonbuk National Univ.
키워드 Copper oxide; Band alignment; Solution process; Quantum confinement
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