Large-Scale Production of Bismuth Chalcogenide and Graphene Heterostructure and Its Application for Flexible Broadband Photodetector

Jingchao Song, Jian Yuan, Fang Xia, Jingying Liu, Yupeng Zhang, Yu Lin Zhong, Jialu Zheng, Yan Liu, Shaojuan Li, Meng Zhao, Zhiming Tian, Rachel A. Caruso, Kian Ping Loh, Qiaoliang Bao

Research output: Contribution to journalArticleResearchpeer-review

Abstract

Large-scale production of 2D van der Waals heterostructures with precisely controlled chemical composition is the major challenge hindering their practical electric and optoelectronic applications. In this work, a solvothermal method is demonstrated to produce van der Waals heterostructures consisting of metal chalcogenides and graphene in a large scale. In situ powder X-ray diffraction reveals that graphene plays an important role as atomic template to grow bismuth chalcogenide nanoplatelets with preferential stoichiometry of Bi2Se1.5Te1.5, which is naturally unstable. It is found that Bi2Se1.5Te1.5 has the minimum lattice mismatch with graphene (<0.1%). The release of lattice mismatch strain between Bi2Se1.5Te1.5 and graphene sheet is evidenced by a new peak in the ultraviolet photoelectron spectroscopy. A macroscale free-standing heterostructured thin film with excellent mechanical flexibility is fabricated by simply filtering the large-scale solution processed heterostructure. The heterostructure film is used to fabricate a flexible photodetector, which shows a broadband photo response and excellent durability in a bending test. The heterostructure material and device demonstrated in this work may shed light to flexible optoelectronic devices and applications.

Original languageEnglish
Article number1600077
Number of pages9
JournalAdvanced Electronic Materials
Volume2
Issue number5
DOIs
Publication statusPublished - 1 May 2016

Keywords

  • BiSeTe -G heterostructures
  • broadband flexible photodetectors
  • flexible optoelectronics
  • in situ PXRD

Cite this

Song, Jingchao ; Yuan, Jian ; Xia, Fang ; Liu, Jingying ; Zhang, Yupeng ; Zhong, Yu Lin ; Zheng, Jialu ; Liu, Yan ; Li, Shaojuan ; Zhao, Meng ; Tian, Zhiming ; Caruso, Rachel A. ; Loh, Kian Ping ; Bao, Qiaoliang. / Large-Scale Production of Bismuth Chalcogenide and Graphene Heterostructure and Its Application for Flexible Broadband Photodetector. In: Advanced Electronic Materials. 2016 ; Vol. 2, No. 5.
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abstract = "Large-scale production of 2D van der Waals heterostructures with precisely controlled chemical composition is the major challenge hindering their practical electric and optoelectronic applications. In this work, a solvothermal method is demonstrated to produce van der Waals heterostructures consisting of metal chalcogenides and graphene in a large scale. In situ powder X-ray diffraction reveals that graphene plays an important role as atomic template to grow bismuth chalcogenide nanoplatelets with preferential stoichiometry of Bi2Se1.5Te1.5, which is naturally unstable. It is found that Bi2Se1.5Te1.5 has the minimum lattice mismatch with graphene (<0.1{\%}). The release of lattice mismatch strain between Bi2Se1.5Te1.5 and graphene sheet is evidenced by a new peak in the ultraviolet photoelectron spectroscopy. A macroscale free-standing heterostructured thin film with excellent mechanical flexibility is fabricated by simply filtering the large-scale solution processed heterostructure. The heterostructure film is used to fabricate a flexible photodetector, which shows a broadband photo response and excellent durability in a bending test. The heterostructure material and device demonstrated in this work may shed light to flexible optoelectronic devices and applications.",
keywords = "BiSeTe -G heterostructures, broadband flexible photodetectors, flexible optoelectronics, in situ PXRD",
author = "Jingchao Song and Jian Yuan and Fang Xia and Jingying Liu and Yupeng Zhang and Zhong, {Yu Lin} and Jialu Zheng and Yan Liu and Shaojuan Li and Meng Zhao and Zhiming Tian and Caruso, {Rachel A.} and Loh, {Kian Ping} and Qiaoliang Bao",
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Song, J, Yuan, J, Xia, F, Liu, J, Zhang, Y, Zhong, YL, Zheng, J, Liu, Y, Li, S, Zhao, M, Tian, Z, Caruso, RA, Loh, KP & Bao, Q 2016, 'Large-Scale Production of Bismuth Chalcogenide and Graphene Heterostructure and Its Application for Flexible Broadband Photodetector' Advanced Electronic Materials, vol. 2, no. 5, 1600077. https://doi.org/10.1002/aelm.201600077

Large-Scale Production of Bismuth Chalcogenide and Graphene Heterostructure and Its Application for Flexible Broadband Photodetector. / Song, Jingchao; Yuan, Jian; Xia, Fang; Liu, Jingying; Zhang, Yupeng; Zhong, Yu Lin; Zheng, Jialu; Liu, Yan; Li, Shaojuan; Zhao, Meng; Tian, Zhiming; Caruso, Rachel A.; Loh, Kian Ping; Bao, Qiaoliang.

In: Advanced Electronic Materials, Vol. 2, No. 5, 1600077, 01.05.2016.

Research output: Contribution to journalArticleResearchpeer-review

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AU - Song, Jingchao

AU - Yuan, Jian

AU - Xia, Fang

AU - Liu, Jingying

AU - Zhang, Yupeng

AU - Zhong, Yu Lin

AU - Zheng, Jialu

AU - Liu, Yan

AU - Li, Shaojuan

AU - Zhao, Meng

AU - Tian, Zhiming

AU - Caruso, Rachel A.

AU - Loh, Kian Ping

AU - Bao, Qiaoliang

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KW - BiSeTe -G heterostructures

KW - broadband flexible photodetectors

KW - flexible optoelectronics

KW - in situ PXRD

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