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CuInSe2 Quantum Dots Hybrid Hole Transfer Layer for Halide Perovskite Photodetectors

Guo, Ruiqi; Huang, Fei; Zheng, Kaibo LU ; Pullerits, Tönu LU and Tian, Jianjun (2018) In ACS Applied Materials and Interfaces 10(41). p.35656-35663
Abstract

A novel hybrid hole transport layer (HTL) of CuInSe2 quantum dots (QDs)/poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) was developed to enhance the performance of halide metal perovskite (MAPbI3)-based photodetectors. The introduction of CuInSe2 QDs not only improved the wettability of the PEDOT:PSS HTL for the growth of perovskite crystals but also facilitated the transportation of holes from the perovskite to the HTL. As a result, both responsivity and detectivity of the device were increased dramatically by CuInSe2 QDs hybrid HTL, showing excellent photoresponsivity of 240 mA/W, larger ratio of photocurrent density to dark current density of 4.1 × 106, fast... (More)

A novel hybrid hole transport layer (HTL) of CuInSe2 quantum dots (QDs)/poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) was developed to enhance the performance of halide metal perovskite (MAPbI3)-based photodetectors. The introduction of CuInSe2 QDs not only improved the wettability of the PEDOT:PSS HTL for the growth of perovskite crystals but also facilitated the transportation of holes from the perovskite to the HTL. As a result, both responsivity and detectivity of the device were increased dramatically by CuInSe2 QDs hybrid HTL, showing excellent photoresponsivity of 240 mA/W, larger ratio of photocurrent density to dark current density of 4.1 × 106, fast on-off switching properties of <0.02 s, and remarkable detectivity values of 1.02 × 1013 Jones at 580 nm and above 5.01 × 1012 Jones over the visible light region without an external bias voltage. In addition, the photodetectors also showed excellent thermal stability in the range of 10-110 °C. Therefore, a unique design idea of a hole transport material would be an anticipated direction for efficient halide metal perovskite-based devices.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
CuInSe QDs, PEDOT:PSS, perovskite, photodetector, quantum dots
in
ACS Applied Materials and Interfaces
volume
10
issue
41
pages
8 pages
publisher
The American Chemical Society
external identifiers
  • scopus:85054694743
ISSN
1944-8244
DOI
10.1021/acsami.8b13777
language
English
LU publication?
yes
id
6ab49d0e-5d2e-4a11-b010-d42f2cbad4d2
date added to LUP
2018-11-13 10:51:56
date last changed
2019-05-14 04:47:19
@article{6ab49d0e-5d2e-4a11-b010-d42f2cbad4d2,
  abstract     = {<p>A novel hybrid hole transport layer (HTL) of CuInSe<sub>2</sub> quantum dots (QDs)/poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) was developed to enhance the performance of halide metal perovskite (MAPbI<sub>3</sub>)-based photodetectors. The introduction of CuInSe<sub>2</sub> QDs not only improved the wettability of the PEDOT:PSS HTL for the growth of perovskite crystals but also facilitated the transportation of holes from the perovskite to the HTL. As a result, both responsivity and detectivity of the device were increased dramatically by CuInSe<sub>2</sub> QDs hybrid HTL, showing excellent photoresponsivity of 240 mA/W, larger ratio of photocurrent density to dark current density of 4.1 × 10<sup>6</sup>, fast on-off switching properties of &lt;0.02 s, and remarkable detectivity values of 1.02 × 10<sup>13</sup> Jones at 580 nm and above 5.01 × 10<sup>12</sup> Jones over the visible light region without an external bias voltage. In addition, the photodetectors also showed excellent thermal stability in the range of 10-110 °C. Therefore, a unique design idea of a hole transport material would be an anticipated direction for efficient halide metal perovskite-based devices.</p>},
  author       = {Guo, Ruiqi and Huang, Fei and Zheng, Kaibo and Pullerits, Tönu and Tian, Jianjun},
  issn         = {1944-8244},
  keyword      = {CuInSe QDs,PEDOT:PSS,perovskite,photodetector,quantum dots},
  language     = {eng},
  month        = {10},
  number       = {41},
  pages        = {35656--35663},
  publisher    = {The American Chemical Society},
  series       = {ACS Applied Materials and Interfaces},
  title        = {CuInSe<sub>2</sub> Quantum Dots Hybrid Hole Transfer Layer for Halide Perovskite Photodetectors},
  url          = {http://dx.doi.org/10.1021/acsami.8b13777},
  volume       = {10},
  year         = {2018},
}