Synthesis of vertical arrays of ultra long ZnO nanowires on noncrystalline substrates

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• 作者：Bong Jun Kwon^a ; Kyung Moon Lee^a ; Hae-Young Shin^b ; Jinwoong Kim^a ; Jinzhang Liu^a ; Seokhyun Yoon^b ; ^c ; Soonil Lee^a ; Y.H. Ahn^a ; Ji-Yong Park^a ; ^{jiyong@ajou.ac.kr}
• 关键词：ZnO ; Nanowire ; Growth ; VS
• 刊名：Materials Science and Engineering: B
• 出版年：2012
• 出版时间：15 February, 2012
• 年：2012
• 卷：177
• 期：2
• 页码：132-139
• 全文大小：1755 K

文摘

Vertically aligned arrays of ultralong ZnO nanowires were synthesized on SiO₂ substrates with carbothermal vapor phase transport method with Au seeding layer. High density of vertically aligned ZnO nanowires with lengths from a few to ?00 ¦Ìm could be grown by controlling growth conditions. Supply of high concentration of Zn vapor and control of the ratio between Zn vapor and oxygen are found to have the most significant effects on the growth of long ZnO nanowires in the vapor-solid growth mechanism. The nanowires are of high crystalline quality as confirmed by various structural, compositional, and luminescent measurements. Luminescent and electrical properties of ZnO nanowires with different growth conditions were also investigated.