# Optimization of Crystal Growth and Defect Passivation of FASnI<sub>3</sub> Film by Using 2-Pyridylthiourea for Sn-Based Perovskite Solar Cells

https://mdr.nims.go.jp/datasets/10b4603f-affc-478f-993d-81fac720210b

## File

- [Optimization of Crystal Growth and Defect Passivation of FASnI3 Film by Using 2-Pyridylthiourea for Sn-based Perovskite Solar Cells.docx](https://mdr.nims.go.jp/filesets/1dc7bed6-d0c0-439b-a330-8db002de5c8f/download) ([Detail](https://mdr.nims.go.jp/filesets/1dc7bed6-d0c0-439b-a330-8db002de5c8f.md))

## Id

10b4603f-affc-478f-993d-81fac720210b

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-12-02T05:35:37.009287Z

## Updated at

2025-12-02T23:30:03.662959Z

## Published at

2025-12-02T23:22:50.331883Z

## Doi

https://doi.org/10.48505/nims.5949

## First published url

https://doi.org/10.1021/acsaem.4c02534

## Date published

2025-02-24

## Recorded date published

2025-2-24

## Resource type

journal_article

## Manuscript type

authors_original

## Collection



## Title

- title: Optimization of Crystal Growth and Defect Passivation of FASnI<sub>3</sub>
    Film by Using 2-Pyridylthiourea for Sn-Based Perovskite Solar Cells
  title_type: original
  lang: en

## Description

- description: Currently, tin (Sn) is the most efficient alternative to lead (Pb)
    for perovskite solar cells (PSCs). However, the fabrication of pinhole-free uniform
    and highly crystalline Sn-perovskite typically, FASnI3 films remains a crucial
    factor due to their rapid crystallization. To address this issue, we incorporated
    2-pyridylthiourea (2PTU) into the precursor solution during FASnI3 film fabrication.
    Based on the morphology, structure, and elements analysis, we have observed that
    2PTU impacts the growth of perovskite crystals and surface morphology by coordinating
    with SnI6 4– octahedral. Moreover, the 2PTU-added FASnI3 film contained fewer
    defects and a prolonged carrier lifetime. These substantial improvements in the
    FASnI3 film resulted in an enhanced open-circuit voltage, elevating the power
    conversion efficiency of Sn-PSC from 10.23% (pristine) to 12.85% (2PTU). Significantly,
    after 500 h of continuous illumination at maximum power point tracking under one
    sun, the 2PTU-added FASnI3-based PSCs showed remarkable stability and maintained
    above 90% of their initial PCE.
  description_type: abstract
  lang: und

## Creator

- name: Md. Emrul Kayesh
  role: author
- name: Yulu He
  role: author
- name: Md. Abdul Karim
  role: author
  orcid: https://orcid.org/0000-0002-9042-811X
- name: Siliang Cao
  role: author
- name: Shamim Ahmmed
  role: author
  orcid: https://orcid.org/0000-0001-5847-2893
- name: Yasuhiro Shirai
  role: author
  orcid: https://orcid.org/0000-0003-2164-5468
- name: Ashraful Islam
  role: author
  orcid: https://orcid.org/0000-0002-1633-1432

## Contact agent



## Publisher

organization: American Chemical Society (ACS)

## Managing organization



## Keyword

- subject: 2-Pyridylthiourea
  schema: not_defined
- subject: Defect Passivation
  schema: not_defined
- subject: Sn-based Perovskite Solar Cells
  schema: not_defined

## Rights

- description: This document is the unedited Author’s version of a Submitted Work
    that was subsequently accepted for publication in ACS Applied Energy Materials,
    copyright © 2025 American Chemical Society after peer review. To access the final
    edited and published work see https://doi.org/10.1021/acsaem.4c02534.
  identifier: http://rightsstatements.org/vocab/InC/1.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: ACS Applied Energy Materials
  issn: '25740962'
  volume: '8'
  issue: '4'
  start_page: 2043
  end_page: 2049

## Conference



## Related item



## Funding

- identifier: JPMJMI21E6
  funder_name: JST-Mirai Program
- identifier: 22H02190
  funder_name: Japan Society for the Promotion of Science
- identifier: JPMJAN23B2
  funder_name: Advanced Low Carbon Technology Research and Development Program

## 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: 1dc7bed6-d0c0-439b-a330-8db002de5c8f
  filename: Optimization of Crystal Growth and Defect Passivation of FASnI3 Film by
    Using 2-Pyridylthiourea for Sn-based Perovskite Solar Cells.docx
  content_type: application/vnd.openxmlformats-officedocument.wordprocessingml.document
  size: 14986059
  md5: aedc62cffd472ac48f546fd20689a043

## Thumbnail

fileset_id: 1dc7bed6-d0c0-439b-a330-8db002de5c8f
filename: Optimization of Crystal Growth and Defect Passivation of FASnI3 Film by
  Using 2-Pyridylthiourea for Sn-based Perovskite Solar Cells.docx