Blue-violet PL band formation in C : SiO2 films after swift heavy ion irradiation

doi:10.1016/S0168-583X(02)02029-3

	Blue-violet PL band formation in C : SiO2 films after swift heavy ion irradiation
	Wang, ZG; Jin, YF; Xie, EQ; Liu, J; Zhu, ZY; Sun, YM; Hou, MD; Zhang, QX; Chen, XX
	2003-08
关键词	swift heavy ions electronic energy loss photoluminescence C-doped SiO2 films light-emitting materials
卷号	209
DOI	10.1016/S0168-583X(02)02029-3
页码	200-204
英文摘要	One hundred and twenty keV Gion doped SiO2 films were irradiated at RT with swift Ar, Kr, Xe or U ions and their photoluminescence (PL) properties were examined. From the obtained results, we found that an intense blue-violet PL band centred at similar to435 +/- 10 nm was formed in all ion irradiated samples and a weak ultraviolet PL band centred at similar to380 nm was formed only in the samples after Kr, Xe or U ion irradiations. The PL peak intensity of the blue-violet band (i) increases with the increase of the swift heavy ion irradiation fluence, (ii) decreases with the increase of electronic energy loss S-e when S-e < 4.85 keV/nm but increases for S-e > 4.85 keV/nm. Furthermore, the peak central position of the blue-violet PL is shifted slightly to violet with increasing S, and some substructures appeared in the PL spectra of the samples irradiated with Xe or U ions. The appearance of these substructures is due to the high electronic energy loss. For the violet PL band, the intensity increases with S-c. Possible origins and formation mechanism of light-emitters corresponding to the observed PL bands are discussed. (C) 2002 Elsevier B.V. All rights reserved.
会议录	NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
会议录出版者	ELSEVIER SCIENCE BV
会议录出版地	PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
语种	英语
WOS研究方向	Instruments & Instrumentation ; Nuclear Science & Technology ; Physics
WOS记录号	WOS:000184884700034
内容类型	会议论文
源URL	[http://119.78.100.186/handle/113462/58130]
专题	中国科学院近代物理研究所
通讯作者	Wang, ZG
作者单位	Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Wang, ZG,Jin, YF,Xie, EQ,et al. Blue-violet PL band formation in C : SiO2 films after swift heavy ion irradiation[C]. 见:.