Facile synthesis of AgBiS2 nanocrystals for high responsivity infrared detectors

Chun Hin Mak, Jiasheng Qian, Lukas Rogée, Wai Kin Lai, Shu Ping Lau

Research output: Journal article publicationJournal articleAcademic researchpeer-review

16 Citations (Scopus)


AgBiS2 nanocrystals are emerging optoelectronic materials due to their solution-processability, earth abundance and non-toxic properties. We report a facile method to prepare AgBiS2 nanocrystals in ambient conditions. The nanocrystals are of high crystallinity and without byproducts, which make them suitable for solution processable optoelectronic devices. They were incorporated into graphene transistors for their near infrared detection application. Photodetectors with a high photo-responsivity of 105 A W-1 for 895 nm wavelength at a low operation voltage of 0.1 V were demonstrated.

Original languageEnglish
Pages (from-to)39203-39207
Number of pages5
JournalRSC Advances
Issue number68
Publication statusPublished - 1 Jan 2018

ASJC Scopus subject areas

  • General Chemistry
  • General Chemical Engineering


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