光学学报, 1994, 14 (5): 518, 网络出版: 2007-08-17
硫化铋微晶掺杂薄膜的制备及光学性能的研究
Preparation and Optical Properties of the Bi_2S_3Microcrystallites Doped Thin Film
摘要
用溶胶-凝胶法能够有效地制备含0.5%的具有量子尺寸效应的Bi2S3微晶掺杂硅薄膜.薄膜的室温透射光谱发现，在500 ℃热处理时，随着热处理时间的延长，薄膜的特征透射谱谷会发生向长波方向的移动，作者认为这样的移动源于量子尺寸效应.本文还报道了在YAG强激光的作用下能够观察到薄膜样品所产生的倍频信号，并讨论了产生倍频的原因.
Abstract
The Bi2S3 microcrystallites doped thin film with a significant quantum size effects has been successivelly prepared by the sol-gel process from the hydrolysis of a complex solution of Si (OC2H5 )4, Bi (NO3 )3. 5H2O and SC (NH2)2. The room temperature optical transmission spectra of the films heat-treated at 500℃ for 0～120min show the evidence of quantum size effects as the red-shift of the transmission valley with longer heating time. The optical second harmonic generation.(SHG) was also observed using a Nd:YAG colliding mode locked laser with the maxium intensity of 104 W/cm2.
叶辉, 何迪洁, 姜中宏. 硫化铋微晶掺杂薄膜的制备及光学性能的研究[J]. 光学学报, 1994, 14(5): 518. 叶辉, 何迪洁, 姜中宏. Preparation and Optical Properties of the Bi_2S_3Microcrystallites Doped Thin Film[J]. Acta Optica Sinica, 1994, 14(5): 518.
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