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浏览/检索结果: 共1条，第1-1条 帮助 限定条件 内容类型：会议论文    专题：长春光学精密机械与物理研究所    第一署名单位    第一作者单位    通讯作者单位     已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 Formation and characteristics of quantum dots of wide band gap II-VI semiconductor (EI CONFERENCE) 会议论文 Fifth International Conference on Thin Film Physics and Applications, May 31, 2004 - June 2, 2004, Shanghai, China Fan X. W.; Shan C. X.; Yang Y.; Zhang J. Y.; Liu Y. C.; Lu Y. M.; Shen D. Z. 收藏  |  浏览/下载：19/0  |  提交时间：2013/03/25 CdSe and ZnCdSe quantum dots (QDs) were grown under Stranski-Krastanow (S-K) mode by low-pressure metalorganic chemical vapor deposition (LP-MOCVD). The formation process of CdSe QDs below critical thickness was observed by atomic force microscopy (AFM). The formation mechanism of CdSe QDs below the critical thickness was due to the effect of surface diffusion and strain release. ZnCdSe QDs were grown based on the calculated critical thickness. Two kinds of variations in the ZnCdSe QDs appeared over time  the Ostwald ripening process and dot formation process. ZnSeS dots were grown under Volmer-Weber (V-W) mode. With increasing the growth duration  the size of dots becomes larger and the density decreases  which is explained by virtue of the surface free energy.