Proceedings of the 7th National Conference on Functional Materials and Applications (FMA 2010 E-BOOK)

Changsha,China,10.16-10.18,2010

ISBN: 978-1-935068-41-9 Scientific Research Publishing, USA

E-Book 2313pp Pub. Date: October 2010

Category: Chemistry & Materials Science

Price: $360

Title: Research on Wetting Layer of Self-Assembled Quantum Dots Grown by Ion Beam Sputtering
Source: Proceedings of the 7th National Conference on Functional Materials and Applications (FMA 2010 E-BOOK) (pp 2130-2134)
Author(s): Xue-gui Zhang, Institute of Optoelectronic Information Materials, Academy of Engineering and Technology,Yunnan University , Kunming 650091 , China ;
Chong Wang, Institute of Optoelectronic Information Materials, Academy of Engineering and Technology,Yunnan University , Kunming 650091 , China ;
Jie Yang, Institute of Optoelectronic Information Materials, Academy of Engineering and Technology,Yunnan University , Kunming 650091 , China ;
Hong-xing Pan, Institute of Optoelectronic Information Materials, Academy of Engineering and Technology,Yunnan University , Kunming 650091 , China ;
Zhi-quan Lu, Institute of Optoelectronic Information Materials, Academy of Engineering and Technology,Yunnan University , Kunming 650091 , China ;
Liang Li, Institute of Optoelectronic Information Materials, Academy of Engineering and Technology,Yunnan University , Kunming 650091 , China ;
Yu Yang, Institute of Optoelectronic Information Materials, Academy of Engineering and Technology,Yunnan University , Kunming 650091 , China ;
Abstract: A serials of self-assembled Ge islands samples with different deposited amount and temperature were grown by Ion Beam Sputtering on Si (100) substrate. The morphology and surface structure were characterized using AFM and Raman spectra, which showed that the wetting layer thickness is 8-11ML, but not theorcial 4-6ML. At lower temperature the wetting layer is thicker, and quantum dots are lager and denser than those at higher temperature.
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