期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 61, 期 14, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.202117261
关键词
Coordination Polymers; Gold(I); Luminescence; Phase Change
资金
- French National Agency [ANR-16-JTIC0004-01]
- CNRS
- Rhone-Alpes region
- European Regional Development Fund [CZ.02.1.01/0.0/0.0/16_019/0000766]
- European Commission [101031503-AniMOC-H2020-MSCA-IF-2020]
The Au-I-thiolate coordination polymer undergoes two successive phase changes under mild heating, with reversible transitions and distinct photoluminescent properties for each phase, which could pave the way for the next generation of PCRAM.
The discovery of a universal memory that exhibits fast access speed, high-density storage, and nonvolatility has fuelled research into phase-change materials over the past decades. In spite of the efficiency of the inorganic chalcogenides for phase-change random access memory (PCRAM), they still have some inherent drawbacks, such as high temperature required for phase change and difficulty to control the domain size of the phase change, because of their brittleness. Here we present a Au-I-thiolate coordination polymer which undergoes two successive phase changes on application of mild heating (< 200 degrees C) from amorphous-to-crystallinel-to-crystalline2 phases. These transitions are reversible upon soft hand grinding. More importantly, each phase exhibits different photoluminescent properties for an efficient optical read-out. We believe that the ability of the Au-I-thiolate coordination polymer to have reversible phase changes under soft conditions and at the same time to display distinct optical signals, can pave the way for the next generation of PCRAM.
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