Metallophthalocyanines as triplet sensitizers for highly efficient photon upconversion based on sensitized triplet-triplet annihilation

J. L. Han; J. You; H. Yonemura; S. Yamada; S. R. Wang; X. G. Li

doi:10.1039/c6pp00172f

Metallophthalocyanines as triplet sensitizers for highly efficient photon upconversion based on sensitized triplet-triplet annihilation

J. L. Han, J. You, H. Yonemura, S. Yamada, S. R. Wang, X. G. Li

Faculty of Engineering

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

Abstract

Soluble palladium and platinum phthalocyanines with coumarin moieties were synthesized with Q bands in the red and near-IR regions, in which the molar extinction coefficients were up to 1.01 × 10⁵ cm^-1 mol^-1. These metallophthalocyanines were coupled with rubrene and applied in photon upconversion systems based on triplet-triplet annihilation. The highest upconversion efficiency of the palladium phthalocyanine was 5.6%, which is higher than that of the platinum phthalocyanine-rubrene system. The larger molar extinction coefficient resulted in high upconversion capability (>10⁵ cm^-1 mol^-1) and low saturation incident power (<20 mW cm^-2).

Original language	English
Pages (from-to)	1039-1045
Number of pages	7
Journal	Photochemical and Photobiological Sciences
Volume	15
Issue number	8
DOIs	https://doi.org/10.1039/c6pp00172f
Publication status	Published - 2016

All Science Journal Classification (ASJC) codes

Physical and Theoretical Chemistry

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title = "Metallophthalocyanines as triplet sensitizers for highly efficient photon upconversion based on sensitized triplet-triplet annihilation",

abstract = "Soluble palladium and platinum phthalocyanines with coumarin moieties were synthesized with Q bands in the red and near-IR regions, in which the molar extinction coefficients were up to 1.01 × 105 cm-1 mol-1. These metallophthalocyanines were coupled with rubrene and applied in photon upconversion systems based on triplet-triplet annihilation. The highest upconversion efficiency of the palladium phthalocyanine was 5.6%, which is higher than that of the platinum phthalocyanine-rubrene system. The larger molar extinction coefficient resulted in high upconversion capability (>105 cm-1 mol-1) and low saturation incident power (<20 mW cm-2).",

author = "Han, {J. L.} and J. You and H. Yonemura and S. Yamada and Wang, {S. R.} and Li, {X. G.}",

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T1 - Metallophthalocyanines as triplet sensitizers for highly efficient photon upconversion based on sensitized triplet-triplet annihilation

AU - Han, J. L.

AU - You, J.

AU - Yonemura, H.

AU - Yamada, S.

AU - Wang, S. R.

AU - Li, X. G.

PY - 2016

Y1 - 2016

N2 - Soluble palladium and platinum phthalocyanines with coumarin moieties were synthesized with Q bands in the red and near-IR regions, in which the molar extinction coefficients were up to 1.01 × 105 cm-1 mol-1. These metallophthalocyanines were coupled with rubrene and applied in photon upconversion systems based on triplet-triplet annihilation. The highest upconversion efficiency of the palladium phthalocyanine was 5.6%, which is higher than that of the platinum phthalocyanine-rubrene system. The larger molar extinction coefficient resulted in high upconversion capability (>105 cm-1 mol-1) and low saturation incident power (<20 mW cm-2).

AB - Soluble palladium and platinum phthalocyanines with coumarin moieties were synthesized with Q bands in the red and near-IR regions, in which the molar extinction coefficients were up to 1.01 × 105 cm-1 mol-1. These metallophthalocyanines were coupled with rubrene and applied in photon upconversion systems based on triplet-triplet annihilation. The highest upconversion efficiency of the palladium phthalocyanine was 5.6%, which is higher than that of the platinum phthalocyanine-rubrene system. The larger molar extinction coefficient resulted in high upconversion capability (>105 cm-1 mol-1) and low saturation incident power (<20 mW cm-2).

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Metallophthalocyanines as triplet sensitizers for highly efficient photon upconversion based on sensitized triplet-triplet annihilation

Abstract

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