journal article·2025-05Open access

Strain‐Induced Bandgap Narrowing in Crumpled TMDs for NIR Light Detection (Small 20/2025)

Ajit Kumar Katiyar, Youngjae Kim, Beom Jin Kim, Jonggyu Choi, Anh Tuan Hoang, JaeDong Lee, Jong‐Hyun Ahn

Small· Volume 21· Issue 20

Abstract

NIR Light Detection In article number 2411378, JaeDong Lee, Jong-Hyun Ahn, and co-workers developed graphene/transition metal dichalcogenides (TMDs)/graphene heterostructure-based strain-engineered photo sensor devices capable of detecting near-infra-red (NIR) radiation. In addition to strain-induced band gap shrinkage in TMDs, the employed non-conventional crumpling approach offered exclusive photon management with enhanced light scattering and trapping at the sinusoidal surface, resulting in increased light absorption for NIR wavelengths.
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Research context

OpenAlex topics: Advanced Sensor and Energy Harvesting Materials

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Affiliations

School of Electrical and Electronic Engineering Yonsei University Seoul 03722 Republic of Korea

Department of Physics and Chemistry DGIST Daegu 42988 Republic of Korea

References

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