# Ameliorating Defects in Wide Bandgap Tin Perovskite Solar Cells Using Fluorinated Solvent and Hydrazide

https://mdr.nims.go.jp/datasets/239b5611-3e32-4152-943f-a16832bb238a

## File

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- [SI file.pdf](https://mdr.nims.go.jp/filesets/a09a2ce0-c1ee-4c45-8121-c6e4afa40391/download) ([Detail](https://mdr.nims.go.jp/filesets/a09a2ce0-c1ee-4c45-8121-c6e4afa40391.md))

## Id

239b5611-3e32-4152-943f-a16832bb238a

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-12-18T02:38:15.515225Z

## Updated at

2025-12-18T23:31:22.778992Z

## Published at

2025-12-18T10:08:24.884701Z

## Doi

https://doi.org/10.48505/nims.5181

## First published url

https://doi.org/10.1002/smll.202410048

## Date published

2024-12-15

## Recorded date published

2025-4

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Ameliorating Defects in Wide Bandgap Tin Perovskite Solar Cells Using Fluorinated
    Solvent and Hydrazide
  title_type: original
  lang: en

## Description

- description: 'Surface passivation with multifunctional molecules is an effective
    strategy to mitigate the defect and improve the performance and stability of perovskite
    solar cells (PSCs). Here, the fabrication of a wide bandgap-PSC is reported with
    tin perovskite (WB-Sn-HP; bandgap: 1.68 eV), followed by molecular surface passivation
    using 4-Fluoro-benzohydrazide (F-BHZ). WB-Sn-PSC has demonstrated a promising
    device efficiency of 11.14% with improved device stability. The key to enhancing
    device performance lies in the meticulous engineering of both surface and bulk
    properties of WB-Sn-HP film with F-BHZ treatment due to stronger electrostatic
    potential and molecular interaction with hydrazine and carbonyl functionalities.
    A compact perovskite film and highly crystalline film growth results in a longer
    carrier lifetime and surface defect mitigation with the control of Sn2+ oxidation
    as supported by theoretical calculations. This work underlines the promising potential
    of chemical engineering to improve the device performance of WB-Sn-PSC and stability
    using multifunctional passivating molecules.'
  description_type: abstract
  lang: und

## Creator

- name: Dhruba B. Khadka
  role: author
  orcid: https://orcid.org/0000-0001-9134-3890
- name: Yasuhiro Shirai
  role: author
  orcid: https://orcid.org/0000-0003-2164-5468
- name: Ryoji Sahara
  role: author
  orcid: https://orcid.org/0000-0003-0788-2985
- name: Masatoshi Yanagida
  role: author
  orcid: https://orcid.org/0000-0002-8065-7875
- name: Kenjiro Miyano
  role: author

## Contact agent



## Publisher

organization: Wiley

## Managing organization



## Keyword

- subject: Wide bandgap tin perovskite
  schema: not_defined
- subject: Lead-free
  schema: not_defined
- subject: Tin oxidation
  schema: not_defined
- subject: Device stability
  schema: not_defined
- subject: Surface passivation
  schema: not_defined
- subject: Pb-free Tandem device
  schema: not_defined

## Rights

- description: 'This is the peer reviewed version of the following article: D. B.
    Khadka, Y. Shirai, R. Sahara, M. Yanagida, K. Miyano, Ameliorating Defects in
    Wide Bandgap Tin Perovskite Solar Cells Using Fluorinated Solvent and Hydrazide.
    Small 2024, 2410048, which has been published in final form at https://doi.org/10.1002/smll.202410048.
    This article may be used for non-commercial purposes in accordance with Wiley
    Terms and Conditions for Use of Self-Archived Versions. This article may not be
    enhanced, enriched or otherwise transformed into a derivative work, without express
    permission from Wiley or by statutory rights under applicable legislation. Copyright
    notices must not be removed, obscured or modified. The article must be linked
    to Wiley’s version of record on Wiley Online Library and any embedding, framing
    or otherwise making available the article or pages thereof by third parties from
    platforms, services and websites other than Wiley Online Library must be prohibited.'
  identifier: http://rightsstatements.org/vocab/InC/1.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo

start_date: 2024-12-15
end_date: 2025-12-15

## Journal

- title: Small
  issn: '16136810'

## Conference



## Related item



## Funding

- identifier: 24K01149
  funder_name: Japan Society for the Promotion of Science
- funder_name: National Institute for Materials Science
- identifier: '1572'
  funder_name: Kurata Memorial Hitachi Science and Technology Foundation

## Instrument



## Instrument operator



## Instrument managing organization



## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



## Structural feature for specimen



## Specific property for specimen



## Process for specimen treatment



## Computational method



## Energy level/transition state



## Software



## Custom property



## Fileset

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  size: 1448989
  md5: 5beaf12130cb5b769d4053ed238b54ea
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  filename: SI file.pdf
  content_type: application/pdf
  size: 1675744
  md5: 5ccd8ea79e5988a012fe2f775ab43ad8

## Thumbnail

fileset_id: a09a2ce0-c1ee-4c45-8121-c6e4afa40391
filename: SI file.pdf