Visible-to-ultraviolet photon upconversion in poly(vinyl alcohol) films and unusual quenching by boric acid treatment

Abstract The photophysical characteristics of pyrene derivatives and Ir-complex pairs in nonstretched (NS-) and stretched (S-) poly(vinyl alcohol) (PVA) films are investigated. The NS-PVA film exhibits air-stable visible-to-ultraviolet (UV) photon upconversion when 1-pyrenebutyric acid is used as an emitter. The photophysical changes observed in the S-PVA films reveal that boric acid treatment unexpectedly quenches the upconverted UV emission.

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Publication Details

Journal
Chemistry Letters
Published
2025-09-09
DOI
https://doi.org/10.1093/chemle/upaf171
Primary Topic
Luminescence and Fluorescent Materials
Type
article
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article

Visible-to-ultraviolet photon upconversion in poly(vinyl alcohol) films and unusual quenching by boric acid treatment

Hitoshi Saomoto, Tsuyoshi Masuda, Mori Takeshi, A. Saito et al.
Chemistry Letters
Luminescence and Fluorescent Materials
article

Visible-to-ultraviolet photon upconversion in poly(vinyl alcohol) films and unusual quenching by boric acid treatment

Hitoshi Saomoto, Tsuyoshi Masuda, Mori Takeshi, A. Saito, Tomohiro Mori, Masafumi Takagaki
article en

Abstract

Abstract The photophysical characteristics of pyrene derivatives and Ir-complex pairs in nonstretched (NS-) and stretched (S-) poly(vinyl alcohol) (PVA) films are investigated. The NS-PVA film exhibits air-stable visible-to-ultraviolet (UV) photon upconversion when 1-pyrenebutyric acid is used as an emitter. The photophysical changes observed in the S-PVA films reveal that boric acid treatment unexpectedly quenches the upconverted UV emission.

Chemistry LettersVol. 54(10)
Toyama Industrial Technology Center (JP), National College of Technology, Wakayama College (JP)
Openalex Percentile: Top 81%
Luminescence and Fluorescent Materials
DOISourceOpenAlex
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Visible-to-ultraviolet photon upconversion in poly(vinyl alcohol) films and unusual quenching by boric acid treatment — Hitoshi Saomoto, Tsuyoshi Masuda, et al. · Chemistry Letters (2025) | TGRS Research Map | TGRS