Graphene quantum dot-embedded perovskite photodetectors with fast response and enhanced sensitivity through bulk defect passivation

David Sunghwan Lee; Jeong Seob Yun; Jin Hyuck Heo; Bong Woo Kim; Sang Hyuk Im

doi:10.1016/j.jiec.2021.05.001

Graphene quantum dot-embedded perovskite photodetectors with fast response and enhanced sensitivity through bulk defect passivation

David Sunghwan Lee, Jeong Seob Yun, Jin Hyuck Heo, Bong Woo Kim, Sang Hyuk Im

Department of Chemical and Biological Engineering

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

Abstract

Graphene quantum dots (GQDs) synthesized by single phase solution chemistry are embedded in metal halide perovskite (MHP) films because they can act as passivating defects that are present throughout the MHP film, not only at the interface but also throughout the bulk of the film. The perovskite photodetectors composed of indium-doped tin oxide/SnO₂/MHP with embedded GQDs/poly triarylamine/Au have the reduced dark current, increased detectivity, and fasted response speed due to lower trap density throughout the bulk MHP layer.

Original language	English
Pages (from-to)	383-389
Number of pages	7
Journal	Journal of Industrial and Engineering Chemistry
Volume	100
DOIs	https://doi.org/10.1016/j.jiec.2021.05.001
Publication status	Published - 2021 Aug 25

Bibliographical note

Publisher Copyright:
© 2021 The Korean Society of Industrial and Engineering Chemistry

Keywords

Bulk defect passivation
Fast response
Graphene quantum dots
Perovskites
Photodetectors
Sensitivity

ASJC Scopus subject areas

General Chemical Engineering

Access to Document

10.1016/j.jiec.2021.05.001

Cite this

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title = "Graphene quantum dot-embedded perovskite photodetectors with fast response and enhanced sensitivity through bulk defect passivation",

abstract = "Graphene quantum dots (GQDs) synthesized by single phase solution chemistry are embedded in metal halide perovskite (MHP) films because they can act as passivating defects that are present throughout the MHP film, not only at the interface but also throughout the bulk of the film. The perovskite photodetectors composed of indium-doped tin oxide/SnO2/MHP with embedded GQDs/poly triarylamine/Au have the reduced dark current, increased detectivity, and fasted response speed due to lower trap density throughout the bulk MHP layer.",

keywords = "Bulk defect passivation, Fast response, Graphene quantum dots, Perovskites, Photodetectors, Sensitivity",

author = "Lee, {David Sunghwan} and Yun, {Jeong Seob} and Heo, {Jin Hyuck} and Kim, {Bong Woo} and Im, {Sang Hyuk}",

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doi = "10.1016/j.jiec.2021.05.001",

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AU - Lee, David Sunghwan

AU - Yun, Jeong Seob

AU - Heo, Jin Hyuck

AU - Kim, Bong Woo

AU - Im, Sang Hyuk

PY - 2021/8/25

Y1 - 2021/8/25

N2 - Graphene quantum dots (GQDs) synthesized by single phase solution chemistry are embedded in metal halide perovskite (MHP) films because they can act as passivating defects that are present throughout the MHP film, not only at the interface but also throughout the bulk of the film. The perovskite photodetectors composed of indium-doped tin oxide/SnO2/MHP with embedded GQDs/poly triarylamine/Au have the reduced dark current, increased detectivity, and fasted response speed due to lower trap density throughout the bulk MHP layer.

AB - Graphene quantum dots (GQDs) synthesized by single phase solution chemistry are embedded in metal halide perovskite (MHP) films because they can act as passivating defects that are present throughout the MHP film, not only at the interface but also throughout the bulk of the film. The perovskite photodetectors composed of indium-doped tin oxide/SnO2/MHP with embedded GQDs/poly triarylamine/Au have the reduced dark current, increased detectivity, and fasted response speed due to lower trap density throughout the bulk MHP layer.

KW - Bulk defect passivation

KW - Fast response

KW - Graphene quantum dots

KW - Perovskites

KW - Photodetectors

KW - Sensitivity

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DO - 10.1016/j.jiec.2021.05.001

M3 - Article

AN - SCOPUS:85106319246

SN - 1226-086X

VL - 100

SP - 383

EP - 389

JO - Journal of Industrial and Engineering Chemistry

JF - Journal of Industrial and Engineering Chemistry

ER -

Graphene quantum dot-embedded perovskite photodetectors with fast response and enhanced sensitivity through bulk defect passivation

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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