tailieunhanh - báo cáo hóa học:" One-Step Synthesis of Monodisperse In-Doped ZnO Nanocrystals"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: One-Step Synthesis of Monodisperse In-Doped ZnO Nanocrystals | Nanoscale Res Lett 2010 5 882-888 DOI s11671-010-9579-0 NANO EXPRESS One-Step Synthesis of Monodisperse In-Doped ZnO Nanocrystals Qing Ling Wang Ye Feng Yang Hai Ping He Dong Dong Chen Zhi Zhen Ye Yi Zheng Jin Received 23 November 2009 Accepted 15 March 2010 Published online 31 March 2010 The Author s 2010. This article is published with open access at Abstract A method for the synthesis of high quality indium-doped zinc oxide In-doped ZnO nanocrystals was developed using a one-step ester elimination reaction based on alcoholysis of metal carboxylate salts. The resulting nearly monodisperse nanocrystals are well-crystallized with typically crystal structure identical to that of wurtzite type of ZnO. Structural optical and elemental analyses on the products indicate the incorporation of indium into the host ZnO lattices. The individual nanocrystals with cubic structures were observed in the 5 In-ZnO reaction due to the relatively high reactivity of indium precursors. Our study would provide further insights for the growth of doped oxide nanocrystals and deepen the understanding of doping process in colloidal nanocrystal syntheses. Keywords ZnO Nanocrystal Doping Indium Monodisperse Introduction Transparent conductive oxides TCOs are impurity doped metal oxides such as indium oxide In2O3 zinc oxide ZnO and tin oxide SnO2 which exhibit excellent properties of controllable low resistivity and high transparency in the visible region 1 . TCOs generally fabricated as polycrystalline or amorphous thin films are employed as transparent electrodes in a wide variety of Q. L. Wang Y. F. Yang H. P. He D. D. Chen Z. Z. Ye Y. Z. Jin State Key Laboratory of Silicon Materials Department of Materials Science and Engineering Zhejiang University Hangzhou 310027 People s Republic of China e-mail yizhengjin@ optoelectronic devices . flat panel displays light emitting diodes and photovoltaics 2-4 . Currently the TCO thin films are deposited by .