2024
DOI: 10.1021/acsphotonics.4c00246
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Mixed-Dimensional PtSe2/Bi2Te3/Pyramid Si Heterojunction with a Light-Trapping Structure for Highly Sensitive Ultrabroadband Photodetection

Xin Li,
Kunxuan Liu,
Ranran Zhuo
et al.

Abstract: Broadband photodetectors have garnered widespread attention in the realm of modern optoelectronic devices and systems due to their pivotal role in various applications. Topological insulators have emerged as promising candidates for broadband photodetection by leveraging their distinct electrical and optoelectrical properties. Here, we report the successful fabrication of a topological insulator Bi 2 Te 3 / pyramidal Si heterojunction, incorporating a top two-dimensional PtSe 2 layer for highly sensitive broad… Show more

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