# Small Molecular Organic Hole Transport Layer for Efficient Inverted Perovskite Solar Cells

https://mdr.nims.go.jp/datasets/57ebbebd-f436-462a-956e-729ea0b5bbbf

## File

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## Id

57ebbebd-f436-462a-956e-729ea0b5bbbf

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-12-02T05:02:30.062815Z

## Updated at

2025-12-02T07:30:24.903810Z

## Published at

2025-12-02T07:29:28.989673Z

## Doi

https://doi.org/10.48505/nims.5948

## First published url

https://doi.org/10.1002/solr.202500017

## Date published

2025-02-17

## Recorded date published

2025-4

## Resource type

journal_article

## Manuscript type

authors_original

## Collection



## Title

- title: Small Molecular Organic Hole Transport Layer for Efficient Inverted Perovskite
    Solar Cells
  title_type: original
  lang: en

## Description

- description: To commercialize perovskite solar cells (PSCs), it is crucial to develop
    cost-effective, dopant-free hole transport layers (HTLs) that can be processed
    at low temperatures. Herein, a dopant-free small molecular material 4,40,40-Tris[2-naphthyl(phenyl)amino]
    triphenylamine (2TNATA) was utilized in inverted PSCs as a HTL. The position of
    the highest occupied molecular orbital energy of 2TNATA is properly aligned with
    the perovskite valence band maximum. Moreover, 2TNATA can be processed at lower
    temperatures and shows excellent thermal stability. The lead (Pb) perovskite on
    2TNATA exhibited superior crystallinity and morphology compared to the perovskite
    on poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) and poly
    [bis(4-phenyl)(2,4,6-trimethylphenyl)amine] (PTAA). Furthermore, the carrier kinetics
    in 2TNATA-based PSCs was superior to PTAA and PEDOT:PSS-based PSCs. Consequently,
    an outstanding power conversion efficiency (PCE) of 20.58% was observed from the
    2TNATAHTL-based0.09cm2PSCs,whilePTAAandPEDOT:PSSHTLs-based0.09cm2PSCsshowedPCEof19.36%and
    14.35%, respectively. Moreover, the 2TNATA HTL-based 1.0cm2 PSCs demonstrated
    an impressive PCE of 20.04%. The results indicate that 2TNATA might be a promising
    HTL for the inexpensive and efficient inverted PSCs.
  description_type: abstract
  lang: und

## Creator

- name: Shamim Ahmmed
  role: author
  orcid: https://orcid.org/0000-0001-5847-2893
- name: Md. Abdul Karim
  role: author
  orcid: https://orcid.org/0000-0002-9042-811X
- name: Yulu He
  role: author
- name: Siliang Cao
  role: author
- name: Md. Emrul Kayesh
  role: author
  orcid: https://orcid.org/0000-0003-3737-819X
- name: Kiyoto Matsuishi
  role: author
  orcid: https://orcid.org/0000-0002-9729-0563
- name: Ashraful Islam
  role: author
  orcid: https://orcid.org/0000-0002-1633-1432

## Contact agent



## Publisher

organization: Wiley

## Managing organization



## Keyword

- subject: Perovskite Solar Cells
  schema: not_defined
- subject: Organic Hole Transport Layer
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin



## Embargo



## Journal

- title: Solar RRL
  issn: 2367198X
  volume: '9'
  issue: '7'
  article_number: '2500017'

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## Instrument



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## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



## Structural feature for specimen



## Specific property for specimen



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## Computational method



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## Fileset

- id: f4dae6d4-5071-4865-a2f6-c5e52a7f241b
  filename: Small molecule.docx
  content_type: application/vnd.openxmlformats-officedocument.wordprocessingml.document
  size: 24145145
  md5: ec868e0f1b363f465aadfa189a7989ea

## Thumbnail

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filename: Small molecule.docx