Sham Tsun-Kong, Rosenberg Richard A
Department of Chemistry, University of Western Ontario, London, ON, N6A 5B7, Canada.
Chemphyschem. 2007 Dec 21;8(18):2557-67. doi: 10.1002/cphc.200700226.
The recent advances in the study of light emission from matter induced by synchrotron radiation: X-ray excited optical luminescence (XEOL) in the energy domain and time-resolved X-ray excited optical luminescence (TRXEOL) are described. The development of these element (absorption edge) selective, synchrotron X-ray photons in, optical photons out techniques with time gating coincide with advances in third-generation, insertion device based, synchrotron light sources. Electron bunches circulating in a storage ring emit very bright, widely energy tunable, short light pulses (<100 ps), which are used as the excitation source for investigation of light-emitting materials. Luminescence from silicon nanostructures (porous silicon, silicon nanowires, and Si-CdSe heterostructures) is used to illustrate the applicability of these techniques and their great potential in future applications.
能量域中的X射线激发光致发光（XEOL）和时间分辨X射线激发光致发光（TRXEOL）。这些具有时间选通功能的元素（吸收边）选择性、同步辐射X射线光子输入、光学光子输出技术的发展与基于第三代插入式装置的同步辐射光源的进步相契合。存储环中循环的电子束发射出非常明亮、能量广泛可调的短光脉冲（<100 ps），这些光脉冲被用作研究发光材料的激发源。硅纳米结构（多孔硅、硅纳米线和Si-CdSe异质结构）的发光被用来阐明这些技术的适用性及其在未来应用中的巨大潜力。
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