Tailorable fragile-to-strong kinetics features of metal oxides nanocomposite phase-change antimony films

Peng, Kexin; Chen, Yimin; Leng, Wenhao; Wang, Guoxiang; Gu, Chenjie; Gao, Yixiao; Wang, Junqiang; Shen, Xiang

doi:10.1016/j.actamat.2022.118013

Cited by 11 publications

(1 citation statement)

References 32 publications

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“…GST alloyed with La-Sr-Mn-O (LSMO) thin films can be used for improving material properties such as crystallization temperature (thus achieving thermal stability), reducing power consumption and switching speed [128]. Alternatively, use of Sb based alloys have shown improved thermal stability (using Sb alloyed with GeO 2 [129], thermoelectric properties (using Mg-Zn-Sb alloys [130]) and switching behaviour (In-S-Sb [131], Zn-Sb-Bi [132]), thus revealing promising capabilities in the next generation memory and computing devices.…”

Section: Novel Phase Change Materialsmentioning

confidence: 99%

Recent developments in Chalcogenide phase change material-based nanophotonics

Tripathi,

Vyas,

Kumar

et al. 2023

Nanotechnology

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There is now a deep interest in actively reconfigurable nanophotonics as they will enable the next generation of optical devices. Of the various alternatives being explored for reconfigurable nanophotonics, Chalcogenide phase change materials (PCMs) are considered highly promising owing to the nonvolatile nature of their phase change. Chalcogenide PCM nanophotonics can be broadly classified into integrated photonics (with guided wave light propagation) and Meta-optics (with free space light propagation). Despite some early comprehensive reviews, the pace of development in the last few years has shown the need for a topical review. Our comprehensive review covers recent progress on nanophotonic architectures, tuning mechanisms, and functionalities in tunable PCM Chalcogenides. In terms of integrated photonics, we identify novel PCM nanoantenna geometries, novel material utilization, the use of nanostructured waveguides, and sophisticated excitation pulsing schemes. On the meta-optics front, the breadth of functionalities has expanded, enabled by exploring design aspects for better performance. The review identifies immediate, and intermediate-term challenges and opportunities in (1) the development of novel chalcogenide PCM, (2) advance in tuning mechanism, and (3) formal inverse design methods, including machine learning augmented inverse design, and provides perspectives on these aspects. The topical review will interest researchers in further advancing this rapidly growing subfield of nanophotonics.

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