Spectral and Kinetic Properties of Plasmon Hybrid Nanocomposites Based on Copper Phthalocyanine and Silver

被引：0

作者：

Zamkovets, A. D. ^{[1
]}

Barbarchik, E. A. ^{[1
]}

Ponyavina, A. N. ^{[1
]}

Tikhomirov, S. A. ^{[1
]}

Binh, Nguyen Thanh ^{[2
]}

Minh, Pham Hong ^{[2
]}

机构：

[1] Natl Acad Sci Belarus, B I Stepanov Inst Phys, Minsk, BELARUS

[2] Vietnam Acad Sci & Technol, Inst Phys, Hanoi, Vietnam

来源：

JOURNAL OF APPLIED SPECTROSCOPY | 2023年 / 90卷 / 5期

关键词：

induced absorption; relaxation kinetics of electronic excitation; silver nanoparticles; surface plasmon resonance; organic semiconductors; hybrid structures; MODULATOR;

D O I：

10.1007/s10812-023-01623-6

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

Femtosecond time-resolved pump-probe absorption kinetic spectroscopy was used to show that the presence of plasmonic silver nanoparticles in Ag-CuPc hybrid thin-fi lm nanocomposites leads to a significant reduction in the relaxation time of induced absorption from an excited singlet state of copper phthalocyanine fi lm as compared to the pure fi lm. The observed effect is associated with intersystem crossing acceleration in CuPc molecules located in a nonuniform field near the surface of plasmonic silver nanoparticles in the hybrid nanocomposite. The detected effects were demonstrated to depend on the thickness of the copper phthalocyanine layers in the hybrid (Ag-CuPc)Ag-n nanocomposites.

引用

页码：988 / 994

页数：7

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