Optimizing Black Phosphorus/Halide Perovskite Compositions by Scanning Photoelectrochemical Microscopy

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

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Author(s)

  • Jiahong Wang
  • Minshu Du
  • Fang-Fang Li
  • Hsin-Hui Shen
  • Shella Permatasari Santoso
  • Edward T. Yu
  • Xuefeng Yu

Related Research Unit(s)

Detail(s)

Original languageEnglish
Article number096510
Journal / PublicationJournal of the Electrochemical Society
Volume169
Issue number9
Online published7 Sept 2022
Publication statusPublished - Sept 2022

Link(s)

DOI

DOI
Check@CityULib
Link to Scopus https://www.scopus.com/record/display.uri?eid=2-s2.0-85138136277&origin=recordpage
Permanent Link https://scholars.cityu.edu.hk/en/publications/publication(ff52c7aa-e72c-4874-9984-0caae896f81d).html

Abstract

The incorporation of black phosphorus (BP) into methylammonium lead iodide (MAPbI3) perovskites has been investigated and optimized by a high throughput screening method using scanning photoelectrochemical microscopy (SPECM) to determine how the addition of BP affects its photoelectrochemical and photovoltaic properties. An optimum ratio of 2.0 mole% BP/MAPbI3 perovskite composite generates an increased photocurrent response compared to pristine MAPbI3 for 2 mM benzoquinone (BQ) reduction at −0.6 V vs Ag/AgNO3 on a spot array electrode under illumination. Due to the relatively high quantum yield of MAPbI3, time-resolved photoluminescence measurements have been conducted to investigate photophysical behaviors of BP/MAPbI3 composites. The optimal 2.0 mole% BP/MAPbI3 exhibits an increased electron-hole diffusion lifetime compared to the pristine MAPbI3 perovskite. Finally, we demonstrate the enhanced efficiency and stability of 2.0% BP/MAPbI3-based perovskite solar cells arising from impeded Pb0-defect generation and suppressed charge-carrier recombination.

Research Area(s)

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Publication fingerprints text

100
Phosphorus Halide Chemistry
100
Phosphorus Chemistry
100
Photocurrent Engineering
100
Quantum Yield Engineering
100
Electrode Array Engineering
100
Perovskite Solar Ce... Engineering
100
Optimum Ratio Engineering
100
Charge Carrier Engineering
100
Photovoltaic Effect Engineering
100
Halide Material Science
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Citation Format(s)

[ RIS ] [ BibTeX ]
Optimizing Black Phosphorus/Halide Perovskite Compositions by Scanning Photoelectrochemical Microscopy. / Liu, Rugeng; Wang, Jiahong; Mak, Chun Hong et al.
In: Journal of the Electrochemical Society, Vol. 169, No. 9, 096510, 09.2022.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review