Facile and controllable preparation of tellurium nanocrystals by laser irradiation

Nguyen, Duc Anh; Park, Dae Young; Jeong, Byeong Geun; Tran, Thi Uyen; Im, Hyunsik; Jeong, Mun Seok

doi:10.1016/j.apsusc.2021.152398

상세 보기

Facile and controllable preparation of tellurium nanocrystals by laser irradiation

Nguyen, Duc Anh;
Park, Dae Young;
Jeong, Byeong Geun;
Tran, Thi Uyen;
Im, Hyunsik;
... Jeong, Mun Seok

Citations

WEB OF SCIENCE

12

Citations

SCOPUS

11

초록

We report a facile and controllable method for fabricating Te nanocrystals (NCs) with tunable photoluminescence from hydrothermally grown Te thin flakes using laser irradiation. The formation of Te NCs is attributed to the vaporization of Te caused by local heat from the laser and rapid recrystallization on the substrate. Moreover, the size of the Te NCs can be tuned according to the heat distribution around the laser spot; thus, photoluminescence covering a broad visible spectrum is observed by the quantum size effect. Our work provides a new strategy to synthesize Te NCs as visible-light absorbers or emitters for integrated optoelectronic and photonic nanodevices.

키워드

Laser irradiation; Nanocrystals; Photoluminescence; Quantum confinement; Tellurene; Irradiation; Photoluminescence; Tellurium; Tellurium compounds; Heat distribution; Hydrothermally; Laser spots; Local heat; Quantum size effects; Recrystallisation; Tellurene; Tunables; Visible light; Visible spectrums; Nanocrystals

제목: Facile and controllable preparation of tellurium nanocrystals by laser irradiation

저자: Nguyen, Duc Anh; Park, Dae Young; Jeong, Byeong Geun; Tran, Thi Uyen; Im, Hyunsik; Jeong, Mun Seok

DOI: 10.1016/j.apsusc.2021.152398

발행일: 2022-04

유형: Article

저널명: Applied Surface Science

권: 581

페이지: 1 ~ 8