Plasmon-Related Modification of Spectral Kinetic Properties of Copper Phthalocyanine Thin Films in the Presence of Silver Nanoparticles*

被引：3

作者：

Buganov, O. V. ^{[1
]}

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

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

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

机构：

[1] Natl Acad Sci Belarus, BI Stepanov Phys Inst, Minsk 220072, BELARUS

来源：

JOURNAL OF APPLIED SPECTROSCOPY | 2014年 / 81卷 / 01期

关键词：

dynamics of electronic excitations; silver nanoparticles; surface plasmon resonance; organic semiconductors; near-field intensity;

D O I：

10.1007/s10812-014-9892-y

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

We have studied the relaxation dynamics for hot electrons in hybrid layered nanocomposites based on island films of silver and copper phthalocyanine. Using femtosecond kinetic spectroscopy, we have shown that the fast component of the bleaching relaxation kinetics in the spectral region corresponding to the absorption bands of copper phthalocyanine correlates with the recovery kinetics for surface plasmon resonance absorption of the silver nanoparticles. This suggests that the fast relaxing bleaching recorded in the absorption bands of copper phthalocyanine and its dynamics are not due to a change in the populations of the energy states of copper phthalocyanine but rather to a change in the state of the plasmon nanoparticles, as a result of their excitation by femtosecond pulses and subsequent relaxation.

引用

页码：92 / 96

页数：5

共 7 条

[1] DYNAMICS OF ELECTRON EXCITATIONS IN DENSELY PACKED PLASMONIC Ag/Na3AlF6 NANOSTRUCTURES UNDER PULSED LASER ACTION [J].

Buganov, O. V. ;

Zamkovets, A. D. ;

Ponyavina, A. N. ;

Tikhomirov, S. A. ;

Baran, L. V. .

JOURNAL OF APPLIED SPECTROSCOPY, 2011, 78 (05) :686-691

[2]

[Дынич Р.А. Dynich R.A.], 2008, [Журнал прикладной спектроскопии, Zhurnal prikladnoi spektroskopii], V75, P831

[3]

Dynich R. A., 2011, OPT SPEKTROSK, V10, P909

[4] PICOSECOND REGULAR REFLECTION SPECTROSCOPIC STUDY ON ULTRAFAST PHOTOINDUCED HEAT-GENERATION IN COPPER PHTHALOCYANINE SOLID [J].

ICHIKAWA, M ;

FUKUMURA, H ;

MASUHARA, H .

JOURNAL OF PHYSICAL CHEMISTRY, 1994, 98 (47) :12211-12214

[5] Optical properties and ultrafast dynamics of metallic nanocrystals [J].

Link, S ;

Ei-Sayed, MA .

ANNUAL REVIEW OF PHYSICAL CHEMISTRY, 2003, 54 :331-366

[6] ENHANCEMENT OF THE PHOTOVOLTAIC CONVERSION EFFICIENCY OF COPPER PHTHALOCYANINE THIN-FILM DEVICES BY INCORPORATION OF METAL-CLUSTERS [J].

STENZEL, O ;

STENDAL, A ;

VOIGTSBERGER, K ;

VONBORCZYSKOWSKI, C .

SOLAR ENERGY MATERIALS AND SOLAR CELLS, 1995, 37 (3-4) :337-348

[7]

Zamkovets A. D., 2012, ZH PRIKL SPEKTROSK, V79, P907

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