# Rational ligand design for enhanced carrier mobility in self-powered SWIR photodiodes based on colloidal InSb quantum dots

https://mdr.nims.go.jp/datasets/c21c9627-f895-4986-8841-ebe1ed0c1c7c

## File

- [MDR.docx](https://mdr.nims.go.jp/filesets/b53363e9-5dfd-4896-aeb1-f9feab8c22ce/download) ([Detail](https://mdr.nims.go.jp/filesets/b53363e9-5dfd-4896-aeb1-f9feab8c22ce.md))

## Id

c21c9627-f895-4986-8841-ebe1ed0c1c7c

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-04-29T22:35:33.646470Z

## Updated at

2024-04-30T03:30:25.128885Z

## Published at

2024-04-30T03:30:25.230007Z

## Doi

https://doi.org/10.48505/nims.4495

## First published url

https://doi.org/10.1039/d4nh00038b

## Date published

2024-03-19

## Recorded date published

2024-4-29

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Rational ligand design for enhanced carrier mobility in self-powered SWIR
    photodiodes based on colloidal InSb quantum dots
  title_type: original
  lang: en

## Description

- description: 'Solution-processed colloidal III-V semiconductor quantum dot photodiodes
    (QPDs) have potential applications in SWIR imaging due to their tunable spectral
    response range, possible multiple-exciton generation, operation at 0-V bias voltage
    and low-cost fabrication and are also expected to replace lead- and mercury-based
    counterparts that are hampered by RoHS. However, the use of III-V CQDs as photoactive
    layers in SWIR optoelectronic applications is still a challenge because of underdeveloped
    ligand-engineering for improving the in-plane conductivity of the QD assembled
    film. Here we report on ligand engineering of InSb CQDs to enhance the optical
    response performance of self-powered SWIR QPDs. Specifically, by replacing oleylamine
    with sulfide, the interparticle distance between the CQDs was shortened 5.0 ±
    0.5 nm to 1.5 ± 0.5 nm, leading to improved carrier mobility for high photoresponse
    speed to SWIR light. '
  description_type: abstract
  lang: und

## Creator

- name: Subhashri Chatterjee
  role: author
  orcid: https://orcid.org/0000-0002-4228-5687
- name: Kazuhiro Nemoto
  role: author
  orcid: https://orcid.org/0000-0001-5228-1826
- name: Hong-Tao Sun
  role: author
  orcid: https://orcid.org/0000-0002-0003-7941
- name: Naoto Shirahata
  role: author
  orcid: https://orcid.org/0000-0002-1217-7589

## Contact agent



## Publisher

organization: Royal Society of Chemistry (RSC)

## Managing organization



## Keyword

- subject: Colloidal Quantum dots
  schema: not_defined
- subject: Short wavelength infrared photodetector
  schema: not_defined
- subject: Near-infrared photodetector
  schema: not_defined
- subject: Indium Antimonide
  schema: not_defined
- subject: Photodiodes
  schema: not_defined
- subject: Nanocrystals
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by/4.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Nanoscale Horizons
  issn: '20556756'
  volume: '9'
  issue: '5'
  start_page: 817
  end_page: 827

## Conference



## Related item



## Funding

- identifier: 21H01910
  funder_name: Japan Society for the Promotion of Science
- identifier: 21H01743
  funder_name: Japan Society for the Promotion of Science

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## Measurement method



## Specimen



## Chemical composition



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## Fileset

- id: b53363e9-5dfd-4896-aeb1-f9feab8c22ce
  filename: MDR.docx
  content_type: application/vnd.openxmlformats-officedocument.wordprocessingml.document
  size: 11736836
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## Thumbnail

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filename: MDR.docx