# Surface Passivation of Sn-Based Wide Band Gap Perovskite Solar Cells Using Functional Molecules

https://mdr.nims.go.jp/datasets/47071cb9-dcdb-4396-9634-8f83f94d89b1

## File

- [PVSC-53_WB-Sn-PSCs.pdf](https://mdr.nims.go.jp/filesets/cf8e7492-95ae-4998-bb0b-7afc8f30eff1/download) ([Detail](https://mdr.nims.go.jp/filesets/cf8e7492-95ae-4998-bb0b-7afc8f30eff1.md))

## Id

47071cb9-dcdb-4396-9634-8f83f94d89b1

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-11-25T06:56:20.315357Z

## Updated at

2026-03-19T05:27:08.323719Z

## Published at

2026-03-19T04:36:20.254587Z

## Doi

https://doi.org/10.48505/nims.6224

## First published url

https://doi.org/10.1109/pvsc59419.2025.11133091

## Date published

2025-06-08

## Recorded date published

2025-6-8

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Surface Passivation of Sn-Based Wide Band Gap Perovskite Solar Cells Using
    Functional Molecules
  title_type: original
  lang: en

## Description

- description: Surface passivation with multifunctional molecules is a powerful approach
    to enhancing the performance and stability of perovskite solar cells (PSCs). This
    study reports the fabrication of wide-bandgap tin-based perovskite solar cells
    (WB-Sn-PSCs) with a bandgap of 1.68 eV, achieving a power conversion efficiency
    of 11.14%. Molecular surface passivation using 4-Fluorobenzohydrazide (F-BHZ)
    significantly improves device performance and stability by engineering both the
    surface and bulk properties of the WB-Sn-HP film. F-BHZ treatment strengthens
    electrostatic potential and molecular interactions with functional groups, mitigating
    surface defects and suppressing Sn2⁺ oxidation, as confirmed by theoretical calculations.
    This work highlights the potential of advanced chemical engineering strategies
    to optimize non-toxic, lead-free perovskite solar cells, advancing their competitiveness
    as environmentally friendly photovoltaic solutions.
  description_type: abstract
  lang: und

## Creator

- name: Dhruba B. Khadka
  role: author
  orcid: https://orcid.org/0000-0001-9134-3890
  organization: National Institute for Materials Science
- name: Masatoshi Yanagida
  role: author
  orcid: https://orcid.org/0000-0002-8065-7875
  organization: National Institute for Materials Science
- name: Roji Sahara
  role: author
  orcid: https://orcid.org/0000-0003-0788-2985
  organization: National Institute for Materials Science
- name: Yasuhiro Shirai
  role: author
  orcid: https://orcid.org/0000-0003-2164-5468
  organization: National Institute for Materials Science

## Contact agent



## Publisher

organization: IEEE

## Managing organization



## Keyword

- subject: Perovskite Solar Cells
  schema: not_defined
- subject: Sn-perovskite
  schema: not_defined
- subject: Surface Passivation
  schema: not_defined
- subject: Wide Band Gap Perovskite
  schema: not_defined

## Rights

- description: "© 2025 IEEE.  Personal use of this material is permitted.  Permission
    from IEEE must be obtained for all other uses, in any current or future media,
    including reprinting/republishing this material for advertising or promotional
    purposes, creating new collective works, for resale or redistribution to servers
    or lists, or reuse of any copyrighted component of this work in other works."
  identifier: http://rightsstatements.org/vocab/InC/1.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Conference Record of the IEEE Photovoltaic Specialists Conference
  issn: '01608371'
  volume: '1'
  start_page: 680
  end_page: 682

## Conference



## Related item



## Funding

- funder_name: Hitachi

## 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

- id: cf8e7492-95ae-4998-bb0b-7afc8f30eff1
  filename: PVSC-53_WB-Sn-PSCs.pdf
  content_type: application/pdf
  size: 557225
  md5: f80cd9640ad82004b917c4587cd9b390

## Thumbnail

fileset_id: cf8e7492-95ae-4998-bb0b-7afc8f30eff1
filename: PVSC-53_WB-Sn-PSCs.pdf