# Triple-Band Electrochromic Switching Among Visible (400–750 nm), NearIR-I (750–1000 nm), and NearIR-II (1000–1600 nm) Regions with Triple-Redox-Active Metallosupramolecular Polymers

https://mdr.nims.go.jp/datasets/5cb1a53e-1c3e-4d4f-9d61-7f397f341fde

## File

- [Triple-Band Electrochromic Switching Among Visible (400–750 nm), NearIR-I (750–1000 nm), and NearIR-II (1000–1600 nm) Regions with Triple-Redox-Active Metallosupramolecular Polymers.pdf](https://mdr.nims.go.jp/filesets/f4100eec-8f4c-4123-bae5-8a58c266a683/download) ([Detail](https://mdr.nims.go.jp/filesets/f4100eec-8f4c-4123-bae5-8a58c266a683.md))

## Id

5cb1a53e-1c3e-4d4f-9d61-7f397f341fde

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-11-29T01:26:22.550799Z

## Updated at

2024-11-29T07:31:55.776767Z

## Published at

2024-11-29T07:31:55.834766Z

## Doi

https://doi.org/10.48505/nims.5058

## First published url

https://doi.org/10.1021/acsaom.4c00108

## Date published

2024-06-28

## Recorded date published

2024-6-28

## Resource type

journal_article

## Manuscript type

authors_original

## Collection



## Title

- title: Triple-Band Electrochromic Switching Among Visible (400–750 nm), NearIR-I
    (750–1000 nm), and NearIR-II (1000–1600 nm) Regions with Triple-Redox-Active Metallosupramolecular
    Polymers
  title_type: original
  lang: en

## Description

- description: Selective electrochromic (EC) switching in the wide range from visible
    (VIS) to near-infra-red (NIR) wavelengths was achieved using novel triple-redox-active
    metallosupramolecular polymers (MSPs), synthesized by 1:1 complexation of a transition
    metal salt and a bisterpyridine ligand containing a tetraphenylbenzidine (TPB)
    moiety. By tuning an oxidation potential in the range between 0 V and 1.2 V vs.
    Ag/Ag+, the MSPs (polyFeLTPB and polyRuLTPB) were capable of selective and reversible
    triple-band EC modulation in the visible (400–750 nm), NIR-I (750–1000 nm), and
    NIR-II (1000–1600 nm) regions. Interestingly, the polymers exhibited excellent
    EC properties with remarkably high optical contrast (98%), high coloration efficiency
    (CE) (851 cm2/C), and fast switching even in the NIR region. A made-to-order quasi-solidstate
    EC device exhibited exceptionally long cycle stability (>7000 cycles) from the
    visible to the NIR region at an incredibly low operational voltage (1.2 V). These
    two ECDs demonstrated that a significant amount of solar irradiance (about 33–36%)
    shielding in the NIR band at 750–1670 nm while allowing 46–53% of VIS transparency
    under low voltage. At dark mode at 0.8 V, they exhibit 59–63% of VIS and 45–47
    % NIR blocking. Under full oxidation, ECDs screen 51–60% VIS and 36–41% NIR while
    using very small electrical energy (about 1.7–13.5 mJ cm–2). These findings signify
    a significant advancement in the design of large scalable dual-band EC devices.
  description_type: abstract
  lang: en

## Creator

- name: Dines Chandra Santra
  role: author
  organization: National Institute for Materials Science
- name: Sanjoy Mondal
  role: author
  orcid: https://orcid.org/0000-0002-4391-6356
  organization: National Institute for Materials Science
- name: Banchhanidhi Prusti
  role: author
  orcid: https://orcid.org/0000-0003-4489-2509
  organization: National Institute for Materials Science
- name: Masayoshi Higuchi
  role: author
  orcid: https://orcid.org/0000-0001-9877-1134
  organization: National Institute for Materials Science

## Contact agent



## Publisher

organization: American Chemical Society (ACS)

## Managing organization



## Keyword

- subject: VIS–NIR
  schema: not_defined
- subject: dual-band electrochromic
  schema: not_defined
- subject: multicolor
  schema: not_defined
- subject: metallosupramolecular polymer
  schema: not_defined
- subject: triple redox
  schema: not_defined
- subject: durability
  schema: not_defined
- subject: smart windows
  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 Optical Materials,
    copyright © 2024 American Chemical Society after peer review. To access the final
    edited and published work see https://doi.org/10.1021/acsaom.4c00108.
  identifier: http://rightsstatements.org/vocab/InC/1.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: ACS Applied Optical Materials
  issn: '27719855'
  volume: '2'
  issue: '6'
  start_page: 1117
  end_page: 1127

## Conference



## Related item



## Funding

- identifier: JPMJMI21I4
  funder_name: JST-Mirai Program
- identifier: JPMEERF20221M02
  funder_name: Environmental Restoration and Conservation Agency

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## Chemical composition



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## Fileset

- id: f4100eec-8f4c-4123-bae5-8a58c266a683
  filename: Triple-Band Electrochromic Switching Among Visible (400–750 nm), NearIR-I
    (750–1000 nm), and NearIR-II (1000–1600 nm) Regions with Triple-Redox-Active Metallosupramolecular
    Polymers.pdf
  content_type: application/pdf
  size: 2454033
  md5: 51504fc28ab8413267d031499240b718

## Thumbnail

fileset_id: f4100eec-8f4c-4123-bae5-8a58c266a683
filename: Triple-Band Electrochromic Switching Among Visible (400–750 nm), NearIR-I
  (750–1000 nm), and NearIR-II (1000–1600 nm) Regions with Triple-Redox-Active Metallosupramolecular
  Polymers.pdf