کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5357990 | 1503613 | 2015 | 17 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synthesis and electrical characterization of vertically-aligned ZnO-CuO hybrid nanowire p-n junctions
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In order to form nanowire (NW)-based p-n junctions, vertically-aligned ZnO-CuO hybrid NW arrays were synthesized by a two-step thermal chemical vapor deposition process. The diameter of parallel-connected ZnO and CuO NWs were estimated to be 146 ± 12 nm and 55 ± 11 nm, respectively, as observed by scanning electron microscopy. Chemical and structural characterizations of ZnO-CuO hybrid NW arrays were performed using X-ray photoelectron spectroscopy and X-ray diffraction, resulting in the formation of high-quality hexagonal ZnO and monoclinic CuO NWs. The temperature dependence of I-V curves and impedance spectra suggested that clear rectifying behavior related with thermionic emission of carriers and the presence of an electrical potential barrier between the ZnO and CuO NWs.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 351, 1 October 2015, Pages 546-549
Journal: Applied Surface Science - Volume 351, 1 October 2015, Pages 546-549
نویسندگان
Supakorn Pukird, Wooseok Song, Suttinart Noothongkaew, Seong Ku Kim, Bok Ki Min, Seong Jun Kim, Ki Woong Kim, Sung Myung, Ki-Seok An,