Modular soft x-ray spectrometer for applications in energy sciences and quantum materials
學年 105
學期 1
出版（發表）日期 2017-01-27
作品名稱 Modular soft x-ray spectrometer for applications in energy sciences and quantum materials
作品名稱（其他語言）
著者 Yi-De Chuang; Yu-Cheng Shao; Alejandro Cruz1; Kelly Hanzel; Adam Brown; Alex Frano; Ruimin Qiao; Brian Smith; Edward Domning; Shih-Wen Huang; L. Andrew Wray; Wei-Sheng Lee; Zhi-Xun Shen; Thomas P. Devereaux; Jaw-Wern Chiou; Way-Faung Pong; Valeriy V. Yashchuk; Eric Gullikson; Ruben Reininger; Wanli Yang; Jinghua Guo; Robert Duarte; Zahid Hussain
單位
出版者
著錄名稱、卷期、頁數 Review of Scientific Instruments 88(1), 013110
摘要 Over the past decade, the advances in grating-based soft X-ray spectrometers have revolutionized the soft X-ray spectroscopies in materials research. However, these novel spectrometers are mostly dedicated designs, which cannot be easily adopted for applications with diverging demands. Here we present a versatile spectrometer design concept based on the Hettrick-Underwood optical scheme that uses modular mechanical components. The spectrometer’s optics chamber can be used with gratings operated in either inside or outside orders, and the detector assembly can be reconfigured accordingly. The spectrometer can be designed to have high spectral resolution, exceeding 10 000 resolving power when using small source (∼1μm) and detector pixels (∼5μm) with high line density gratings (∼3000 lines/mm), or high throughput at moderate resolution. We report two such spectrometers with slightly different design goals and optical parameters in this paper. We show that the spectrometer with high throughput and large energy window is particularly useful for studying the sustainable energy materials. We demonstrate that the extensive resonant inelastic X-ray scattering (RIXS) map of battery cathode material LiNi1/3Co1/3Mn1/3O2 can be produced in few hours using such a spectrometer. Unlike analyzing only a handful of RIXS spectra taken at selected excitation photon energies across the elemental absorption edges to determine various spectral features like the localized dd excitations and non-resonant fluorescence emissions, these features can be easily identified in the RIXS maps. Studying such RIXS maps could reveal novel transition metal redox in battery compounds that are sometimes hard to be unambiguously identified in X-ray absorption and emission spectra. We propose that this modular spectrometer design can serve as the platform for further customization to meet specific scientific demands.
關鍵字
語言 en_US
ISSN 1089-7623
期刊性質 國外
收錄於 SCI
產學合作
通訊作者
審稿制度 否
國別 USA
公開徵稿
出版型式 ,電子版,紙本
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機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/115550 )