Solution-processed ch3nh3pbi3/zno phototransistor with high photodetectivity

Farjana Haque, Md Mehedi Hasan, Mallory Mativenga

Research output: Contribution to journalConference articlepeer-review

Abstract

We report a phototransistor using the CH3NH3PbI3/ZnO heterostructure. The CH3NH3PbI3 (MAPbI3) and ZnO are deposited via low-cost solution process. MAPbI3 coated ZnO TFTs exhibited enhanced photocurrent upon exposure to white light. The heterostructure formed between perovskite and ZnO, works as an efficient electron transport layer. The device had a responsivity of 195 A/W and a high detectivity of 1.10 × 1013 Jones under white light. The high photo-responsivity and detectivity resulted from the combination of suitable optoelectronic property of MAPbI3 films and the high mobility of the spray coated ZnO films.

Original languageEnglish
Pages (from-to)1130-1133
Number of pages4
JournalDigest of Technical Papers - SID International Symposium
Volume53
Issue number1
DOIs
Publication statusPublished - 2022
Event59th International Symposium, Seminar and Exhibition, Display Week 2022 - San Jose, United States
Duration: 8 May 202213 May 2022

Bibliographical note

Publisher Copyright:
© 2022. John Wiley and Sons Inc. AIAA. All rights reserved.

Keywords

  • Methyl ammonium
  • Perovskite
  • Photo sensor
  • Phototransistor
  • Thin-film transistor
  • ZnO TFTs

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