# Up-conversion of photon energy in colloidal clay systems

https://mdr.nims.go.jp/datasets/fa88be60-66c4-442e-933d-dbfd6842c378

## File

- [■ApplClaySci_UC-clay SI.pdf](https://mdr.nims.go.jp/filesets/35e36f20-7428-4c4a-accb-f70a1127205b/download) ([Detail](https://mdr.nims.go.jp/filesets/35e36f20-7428-4c4a-accb-f70a1127205b.md))

## Id

fa88be60-66c4-442e-933d-dbfd6842c378

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-05-23T10:17:06.213227Z

## Updated at

2024-05-24T01:53:42.088048Z

## Published at

2026-05-11T23:27:29.390682Z

## Doi

https://doi.org/10.48505/nims.4515

## First published url

https://doi.org/10.1016/j.clay.2024.107397

## Date published

2024-05-11

## Recorded date published

2024-7

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Up-conversion of photon energy in colloidal clay systems
  title_type: original
  lang: en

## Description

- description: The up-conversion (UC) of photon energy was attempted for the system
    of a colloidal clay dispersion through the mechanism of triplet-triplet annihilation.
    Tris(1,10-phenanthroline)ruthenium(II) ([Ru(phen)3]2+) and 9, 10-diphenylanthracne
    (DPA) were used as a donor and an acceptor, respectively. A used clay mineral
    was synthetic saponite. A medium was 1:1:0.1 (v/v) methanol/dichloromethane/water.
    Δ-[Ru(phen)3]2+ (4.9 × 10−5 M) was adsorbed by SAP (3.8 × 10−4 M) to 26% CEC.
    The dispersion was irradiated by a laser light (0.5 mW) at 450 nm in the presence
    of DPA (4.2 × 10−3 M). An emission with the peak around 430 nm was observed under
    air. It implied the Ru(II) complex adsorbed by a colloidal clay acted as a donor
    to achieve UC. Quantum yield of UC was estimated to be 0.009 ± 0.003. The effect
    of stereoselectivity was investigated when a chiral donor/acceptor pair was employed.
  description_type: abstract
  lang: und

## Creator

- name: Akihiko Yamagishi
  role: author
- name: Kenji Tamura
  role: author
  orcid: https://orcid.org/0000-0001-6578-0923
- name: Shohei Yamamoto
  role: author
- name: Fumi Sato
  role: author
- name: Jun Yoshida
  role: author
- name: Hisako Sato
  role: author

## Contact agent



## Publisher

organization: Elsevier BV

## Managing organization



## Keyword

- subject: Up-conversion
  schema: not_defined
- subject: Synthetic saponite
  schema: not_defined
- subject: Ruthenium(II) complex
  schema: not_defined
- subject: 9,10-Diphenylanthracne
  schema: not_defined
- subject: Stereoselectivity
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by-nc-nd/4.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo

start_date: 2024-05-11
end_date: 2026-05-12

## Journal

- title: Applied Clay Science
  issn: '01691317'
  volume: '255'
  article_number: '107397'

## Conference



## Related item



## Funding

- identifier: 17H03044
  funder_name: Japan Society for the Promotion of Science
- identifier: 20K21090
  funder_name: Japan Society for the Promotion of Science
- identifier: 22H02033
  funder_name: Japan Society for the Promotion of Science

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## Chemical composition



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## Fileset

- id: 35e36f20-7428-4c4a-accb-f70a1127205b
  filename: "■ApplClaySci_UC-clay SI.pdf"
  content_type: application/pdf
  size: 1540141
  md5: a68925bd17cac749d499c3e9a4fa48d4

## Thumbnail

fileset_id: 35e36f20-7428-4c4a-accb-f70a1127205b
filename: "■ApplClaySci_UC-clay SI.pdf"