journal article·2024-04

High‐Throughput Study of Amorphous Stability and Optical Properties of Superlattice‐Like Ge–Sb–Te Thin Films

Jian Hui, Qingyun Hu, Hongjian Yuan, Ruiqian Shi, Xiang Huang, Yuanyuan Wu, Yang Ren, Zhan Zhang, Hong Wang

Small· Volume 20· Issue 16
Publisher page

Abstract

Abstract A high‐throughput ion beam sputtering system is used to synthesize compositional gradient superlattice‐like (SLL) thin film libraries of Ge–Sb–Te alloys over the entire phase diagram. The optical properties and structural evolution of the Ge–Sb–Te combinatorial SLL thin film are investigated. A systematic screening over the annealing temperature, annealing time, and modulation period has elucidated the critical factors that affect the stability of the metastable phase and optical properties. It is found that amorphous stability and optical constant are highly dependent on the modulation period and chemical composition of the thin film. This data‐driven approach offers new perspectives for accelerating the development of new materials with excellent optical and amorphous stability and for exploring their mechanisms, by greatly expanding the dataset of Ge–Sb–Te alloys with SLL structures through high‐throughput experiments.
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Research context

OpenAlex topics: Phase-change materials and chalcogenides · Glass properties and applications · Nonlinear Optical Materials Studies

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

School of Materials Science and Engineering Zhangjiang Institute for Advanced Study Shanghai Jiao Tong University Shanghai 200240 China

China‐UK Low Carbon College Shanghai Jiao Tong University Shanghai 201306 China

Boyue Instruments Co., Ltd Shanghai 201600 China

Department of Physics City University of Hong Kong Kowloon Hong Kong 9999077 China

X‐ray Science Division Advanced Photon Source Argonne National Laboratory Argonne IL 60439 USA

Shanghai Key Laboratory of High Temperature Materials and Precision Forming Shanghai Jiaotong University Shanghai 200240 China

Funding

National Key Research and Development Program of China · City University of Hong Kong · Shanghai Jiao Tong University

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