# Highly Stable Ion‐Exchange Doping of Organic Semiconductor Single Crystals for Reliable Flexible Sensors

https://mdr.nims.go.jp/datasets/6b19bf49-1b3a-4ff1-a56f-cd972c0e1520

## File

- [Adv Funct Materials - 2025 - Murata - Highly Stable Ion‐Exchange Doping of Organic Semiconductor Single Crystals for (1).pdf](https://mdr.nims.go.jp/filesets/d84e8908-ed34-4df0-9994-bfb5e484fd6a/download) ([Detail](https://mdr.nims.go.jp/filesets/d84e8908-ed34-4df0-9994-bfb5e484fd6a.md))

## Id

6b19bf49-1b3a-4ff1-a56f-cd972c0e1520

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2026-02-13T06:36:34.430395Z

## Updated at

2026-02-14T03:30:06.576714Z

## Published at

2026-02-14T00:52:12.130435Z

## Doi



## First published url

https://doi.org/10.1002/adfm.202518055

## Date published

2025-09-18

## Recorded date published

2026-2

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Highly Stable Ion‐Exchange Doping of Organic Semiconductor Single Crystals
    for Reliable Flexible Sensors
  title_type: original
  lang: en

## Description

- description: Thin-film single crystals of organic semiconductors represent a emerging
    class of materials for flexible printed electronic devices, including organic
    field-effect transistors and strain sensors. Their potential arises from the demonstration
    of high-mobility band transport, which significantly enhances both device performance
    and operational reliability. However, achieving stable and precise control over
    carrier concentration through chemical doping remains a fundamental challenge,
    restricting device architecture and broader application. In this study, the challenge
    is addressed by improving the environmental and thermal stability of chemically
    doped organic single crystals through the strategic selection of dopant anions.
    Specifically, ion-exchange doping using the bulky tetrakis(3,5-bis(trifluoromethyl)phenyl)borate
    (BArF) anion resulted in high electrical conductivity and exceptional stability
    under ambient conditions at 80 °C. The doped single crystals further exhibited
    excellent strain sensitivity, maintaining consistent strain sensing performance
    over 100 000 bending cycles, with conductivity drift suppressed to the order of
    ppm per hour under ambient conditions.
  description_type: abstract
  lang: und

## Creator

- name: Tomohiro Murata
  role: author
  orcid: https://orcid.org/0009-0003-9793-8854
- name: Yoshihisa Usami
  role: author
- name: Akiko Tajima
  role: author
- name: Tatsuyuki Makita
  role: author
- name: Yu Yamashita
  role: author
  orcid: https://orcid.org/0000-0001-7966-3197
- name: Jun Takeya
  role: author

## Contact agent



## Publisher

organization: Wiley

## Managing organization



## Keyword

- subject: organic semiconductor
  schema: not_defined
- subject: strain sensor
  schema: not_defined

## Rights

- 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
  volume: '36'
  issue: '13'
  article_number: e18055

## Conference



## Related item



## Funding

- identifier: JP22H04959
  funder_name: Japan Society for the Promotion of Science
- identifier: JPMJCR21O3
  funder_name: Japan Science and Technology Agency
- identifier: JPMJFR236R
  funder_name: Japan Science and Technology Agency

## 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: d84e8908-ed34-4df0-9994-bfb5e484fd6a
  filename: Adv Funct Materials - 2025 - Murata - Highly Stable Ion‐Exchange Doping
    of Organic Semiconductor Single Crystals for (1).pdf
  content_type: application/pdf
  size: 2963423
  md5: cfd0d2cbbd3248db6532f27654ad8095

## Thumbnail

fileset_id: d84e8908-ed34-4df0-9994-bfb5e484fd6a
filename: Adv Funct Materials - 2025 - Murata - Highly Stable Ion‐Exchange Doping
  of Organic Semiconductor Single Crystals for (1).pdf