# Effect of Charge-Modulated Molecular Passivator on Methylammonium/Bromine-Free Inverted Perovskite Solar Cells

https://mdr.nims.go.jp/datasets/ce31e234-02e8-4a1e-991c-48f1c525e445

## File

- [PVSC-52_Pb-HPSCs-2023-2.pdf](https://mdr.nims.go.jp/filesets/f06e8cca-f60f-41be-80c2-eaa2629c9681/download) ([Detail](https://mdr.nims.go.jp/filesets/f06e8cca-f60f-41be-80c2-eaa2629c9681.md))

## Id

ce31e234-02e8-4a1e-991c-48f1c525e445

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-11-26T00:14:24.654548Z

## Updated at

2024-12-10T07:54:02.041152Z

## Published at

2024-12-10T07:54:03.714204Z

## Doi

https://doi.org/10.48505/nims.5032

## First published url

https://doi.org/10.1109/pvsc57443.2024.10749333

## Date published

2024-06-09

## Recorded date published

2024-6-9

## Resource type

conference_paper

## Manuscript type

authors_original

## Collection



## Title

- title: Effect of Charge-Modulated Molecular Passivator on Methylammonium/Bromine-Free
    Inverted Perovskite Solar Cells
  title_type: original
  lang: en

## Description

- description: 'This study explores the potential of molecular passivation to enhance
    both the efficiency and operational stability of perovskite solar cells. We investigate
    the impact of diammonium iodide functional molecules with aryl or alkyl cores
    on 3D-perovskite surfaces. We found that piperazine dihydriodide, featuring an
    alkyl core and an electron-rich -NH terminal was effective in mitigating surface
    and bulk defects. This molecular passivator not only modifies surface chemistry
    but also improves carrier extraction efficiency, leading to an impressive 23.17%
    efficiency with superior long-term stability. Detailed device analysis suggests
    that robust bonding interactions significantly reduce defect densities in the
    perovskite film and suppress ion migration. This report provides insights into
    the synergistic effect of bifunctional molecules in defect mitigation, paving
    the way for design strategies centered on bonding-regulated molecular passivation
    to enhance both the performance and stability of solar cells. '
  description_type: abstract
  lang: und

## Creator

- name: Dhruba B. Khadka
  role: author
- name: Yasuhiro Shirai
  role: author
  orcid: https://orcid.org/0000-0003-2164-5468
- name: Masatoshi Yanagida
  role: author
  orcid: https://orcid.org/0000-0002-8065-7875
- name: Kenjiro Miyano
  role: author

## Contact agent



## Publisher

organization: IEEE

## Managing organization



## Keyword

- subject: MA-free Perovskite
  schema: not_defined
- subject: Surface Passivation
  schema: not_defined
- subject: Device Stability
  schema: not_defined

## Rights

- identifier: http://rightsstatements.org/vocab/InC/1.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: 2024 IEEE 52nd Photovoltaic Specialist Conference (PVSC)
  issn: '29951755'
  start_page: 2
  end_page: 4

## Conference



## Related item



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## 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



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## Custom property



## Fileset

- id: f06e8cca-f60f-41be-80c2-eaa2629c9681
  filename: PVSC-52_Pb-HPSCs-2023-2.pdf
  content_type: application/pdf
  size: 517284
  md5: e2d34412585c9f63664aad6499498801

## Thumbnail

fileset_id: f06e8cca-f60f-41be-80c2-eaa2629c9681
filename: PVSC-52_Pb-HPSCs-2023-2.pdf