# Chemical Interface Structures in CdS/RbInSe<sub>2</sub>/Cu(In,Ga)Se<sub>2</sub> Thin‐Film Solar Cell Stacks

https://mdr.nims.go.jp/datasets/3c1bd446-17ca-43f9-b5bd-7e3bec0e6f1a

## File

- [Bombsch_Adv_Funct_Mater2024.pdf](https://mdr.nims.go.jp/filesets/1d9bdc5f-bb3e-47eb-84e8-8e2efa1140f4/download) ([Detail](https://mdr.nims.go.jp/filesets/1d9bdc5f-bb3e-47eb-84e8-8e2efa1140f4.md))

## Id

3c1bd446-17ca-43f9-b5bd-7e3bec0e6f1a

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-08-01T04:52:26.863085Z

## Updated at

2024-08-01T07:30:13.280121Z

## Published at

2024-08-01T07:30:13.344934Z

## Doi



## First published url

https://doi.org/10.1002/adfm.202403685

## Date published

2024-05-06

## Recorded date published

2024-10

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Chemical Interface Structures in CdS/RbInSe<sub>2</sub>/Cu(In,Ga)Se<sub>2</sub>
    Thin‐Film Solar Cell Stacks
  title_type: original
  lang: en

## Description

- description: Heavy alkali – based post-deposition treatments (PDT) of Cu(In,Ga)Se2
    (CIGSe) thin-film solar cells absorbers often result in an performance enhancement.
    Employing an RbF PDT in some cases induces the formation of an Rb-In-Se phase
    on the CIGSe surface. Mimicking this effect, recently the direct deposition of
    an interfacial RbInSe2 (RISe) layer between buffer and absorber was suggested
    and realized by co-evaporation; also benefitting cell performance. In order to
    clarify the beneficial effect, we performed a detailed analysis of the chemical
    interface structures in CdS/RISe/CIGSe layer stacks using hard X-ray photoelectron
    spectroscopy (HAXPES). When aiming for the direct co-evaporation of a RISe layer
    on the CIGSe absorber, we find the formation of an additional In-Se phase. For
    the RbF PDT CIGSe absorbers, we only find small amounts of Rb and no indication
    for a RISe layer formation. Examining layer stacks prepared via additional chemical
    bath deposition (CBD) of CdS reveals a clear impact of the presence of Rb on the
    CIGSe surface. In these cases, we find an increase of the induction/coalescence
    period at the beginning of the CBD buffer layer growth process and the formation
    of Cd-Se bonds; thereafter, a more compact CdS layer growth is observed.
  description_type: abstract
  lang: und

## Creator

- name: Jakob Bombsch
  role: author
  orcid: https://orcid.org/0000-0002-0820-162X
- name: Tim Kodalle
  role: author
  orcid: https://orcid.org/0000-0002-8792-9669
- name: Raul Garcia‐Diez
  role: author
  orcid: https://orcid.org/0009-0000-9374-1083
- name: Claudia Hartmann
  role: author
- name: Roberto Félix
  role: author
- name: Shigenori Ueda
  role: author
  orcid: https://orcid.org/0000-0001-9425-0614
- name: Regan G. Wilks
  role: author
  orcid: https://orcid.org/0000-0001-5822-8399
- name: Christian A. Kaufmann
  role: author
  orcid: https://orcid.org/0000-0001-9168-2032
- name: Marcus Bär
  role: author
  orcid: https://orcid.org/0000-0001-8581-0691

## Contact agent



## Publisher

organization: Wiley

## Managing organization



## Keyword

- subject: Thin-film solar cell stack
  schema: not_defined
- subject: interface
  schema: not_defined
- subject: Chemical analysis
  schema: not_defined
- subject: hard X-ray photoemission spectroscopy
  schema: not_defined
- subject: HAXPES
  schema: not_defined

## Rights

- description: "Share — copy and redistribute the material in any medium or format
    for any purpose, even commercially.\r\nAdapt — remix, transform, and build upon
    the material for any purpose, even commercially."
  identifier: https://creativecommons.org/licenses/by/4.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Advanced Functional Materials
  issn: 1616301X
  article_number: '2403685'

## Conference



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## Instrument



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## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



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## Fileset

- id: 1d9bdc5f-bb3e-47eb-84e8-8e2efa1140f4
  filename: Bombsch_Adv_Funct_Mater2024.pdf
  content_type: application/pdf
  size: 2623043
  md5: 64a21791e12e90be606ea66c9b7e0d62

## Thumbnail

fileset_id: 1d9bdc5f-bb3e-47eb-84e8-8e2efa1140f4
filename: Bombsch_Adv_Funct_Mater2024.pdf