Optical properties of molecular nanocrystals consisting of J-aggregates of anionic and cationic cyanine dyes

被引：11

作者：

Shapiro, B. I. ^{[1
]}

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

Krivobok, V. S. ^{[2
]}

Lebedev, V. S. ^{[2
]}

机构：

[1] MIREA Russian Technol Univ, Prosp Vernadskogo 86, Moscow 119571, Russia

[2] Russian Acad Sci, PN Lebedev Phys Inst, Leninsky Prosp 53, Moscow 119991, Russia

来源：

OPTICS EXPRESS | 2018年 / 26卷 / 23期

基金：

俄罗斯科学基金会;

关键词：

SPECTROSCOPIC PROPERTIES; EXCITON; PLASMON; NANOPARTICLES; SURFACE;

D O I：

10.1364/OE.26.030324

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report results of experimental studies of the photoabsorption, photoluminescent and photoelectric properties of a new type of multilayer molecular nanocrystals, consisting of highly ordered J-aggregates of one anionic and two cationic J-aggregates of cyanine dyes. In contrast to conventional J-aggregated dyes the multichromic nanocrystals synthesized in this work, are capable of efficient light absorption in three excitonic bands of the visible and near-IR spectral ranges. The spectral peak positions in the absorption bands can be controlled by appropriately selecting a set of dyes a molecular crystal is made of. Our investigations of the photoelectric properties of multichromic crystals have shown that each of them can potentially be used as a photosensitive layer of a photocell with photoconductivity in three peaks of excitonic absorption. The synthesized nanocrystals are attractive for the creation of thin-film organic photodetectors with a large photosensitive area and varied photoabsorption spectra, excitonic waveguides and for some other applications in organic and hybrid photonics and optoelectronics. (c) 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

引用

页码：30324 / 30337

页数：14

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