DataVXAdvanced Materials InterfacesPaper
journal article·2021-09

Ternary FePSe3 Atomic Layers with Competitive Temperature Coefficient of Resistance for Uncooled Infrared Bolometers

Alei Li, Yanfeng Ge, Yuan Gan, Yulu L. Ren, Yingjie He, Qianxue Chen, Peipei Wang, Kai Zhang, Shengyuan A. Yang, Judy Z. Wu, Rui Chen, Liyuan Zhang, Youpin Gong

Advanced Materials Interfaces· Volume 8· Issue 18
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Source abstract

Abstract

Abstract The semiconducting metal phosphorus trichalcogenides (MPX3, X = S, Se), a new family of layered atomic materials similar to the transition‐metal dichalcogenides, have recently attracted great attention owing to their 2D magnetic properties as well as their wide range of tunable bandgaps, which can lead to promising applications in spintronic and optoelectronic devices. Herein, an uncooled bolometer based on FePSe3 atomic layers is reported, on which a competitive temperature coefficient of resistance (TCR) of ≈−2.96% K−1 at room temperature is observed. In detecting infrared radiation (980–1550 nm) at room temperature using the FePSe3 bolometer, high responsivity exceeding 108 V W−1 and specific detectivity up to 109 Jones are achieved, which can be attributed to the combined advantages of the competitive room‐temperature TCR and natural thermal isolation between the inner layers of FePSe3 and the environment. This result reveals a remarkable property of FePSe3 atomic layers and paves the way toward new types of bolometers with high sensitivities.
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Research context

Electronic materials

OpenAlex topics: 2D Materials and Applications · MXene and MAX Phase Materials · Advanced Thermoelectric Materials and Devices

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

Affiliations

School of Physics Harbin Institute of Technology Harbin 150001 China

Department of Physics Southern University of Science and Technology Shenzhen 518055 China

State Key Laboratory of Metastable Materials Science and Technology and Key Laboratory for Microstructural Material Physics of Hebei Province School of Science Yanshan University Qinhuangdao 066004 China

College of Physics Center for Quantum Materials and Devices at Institute of Advanced Interdisciplinary Studies Soft Matter and Interdisciplinary Research Center Chongqing University Chongqing 400044 China

School of Science and Engineering The Chinese University of Hong Kong, Shenzhen Shenzhen 518172 China

Research Laboratory for Quantum Materials Singapore University of Technology and Design Singapore 487372 Singapore

Department of Physics and Astronomy University of Kansas Lawrence KS 66045 USA

Department of Electrical and Electronic Engineering Southern University of Science and Technology Shenzhen 518055 China

Funding

Science, Technology and Innovation Commission of Shenzhen Municipality · National Natural Science Foundation of China

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