The electronic band structures of gadolinium chalcogenides: a first-principles prediction for neutron detecting

	The electronic band structures of gadolinium chalcogenides: a first-principles prediction for neutron detecting
	Li, K. X.; L. Liu; P. Y. Yu; X. B. Chen and D. Z. Shen
	2016
发表期刊	Journal of Physics-Condensed Matter
卷号	28 期号:18
摘要	Temperature-dependent photoluminescence (PL) properties of inorganic perovskite CsPbBr3 nanocrystal (NC) films were studied by using steady-state and time-resolved PL spectroscopy. The closely packed solid films were obtained by dropping NC solution on silicon substrates. It was found that the PL intensities of the NC films, which are dependent on the size of NCs, slightly decreased with increasing temperature to 300 K, while the PL intensities dropped rapidly with increasing temperature above 300 K and were nearly quenched at 360 K. Further the corresponding average PL lifetimes increased significantly with increasing temperature below about 320 K and then significantly became shorter. The PL quenching mechanisms were demonstrated through heating and cooling experiments. The experimental results indicated inorganic perovskite NCs exhibited a thermal PL quenching in the temperature range of 80-300 K and a thermal degradation at temperatures above 300 K. The linewidths, peak energies, and lifetimes of PL emissions for the NC films as a function of temperature were discussed in detail.
文章类型	期刊
收录类别	SCI ; EI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/57025
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Li, K. X.,L. Liu,P. Y. Yu,et al. The electronic band structures of gadolinium chalcogenides: a first-principles prediction for neutron detecting[J]. Journal of Physics-Condensed Matter,2016,28(18).
APA	Li, K. X.,L. Liu,P. Y. Yu,&X. B. Chen and D. Z. Shen.(2016).The electronic band structures of gadolinium chalcogenides: a first-principles prediction for neutron detecting.Journal of Physics-Condensed Matter,28(18).
MLA	Li, K. X.,et al."The electronic band structures of gadolinium chalcogenides: a first-principles prediction for neutron detecting".Journal of Physics-Condensed Matter 28.18(2016).