Optical nonlinearities and excited state dynamics of self-assembled cobalt phthalocyanine multilayer films

Zhongguo Li; Chunying He; Jingze Fan; Yiqun Wu; Yushen Liu; Jinfu Feng; Yinglin Song

doi:10.1016/j.matlet.2018.03.136

Optical nonlinearities and excited state dynamics of self-assembled cobalt phthalocyanine multilayer films

Zhongguo Li
, Chunying He^*
, Jingze Fan
, Yiqun Wu
, Yushen Liu
, Jinfu Feng
, Yinglin Song

^*Corresponding author for this work

School of Physics

Changshu Institute of Technology
Harbin Institute of Technology
Heilongjiang University

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

16 Scopus citations

Abstract

An ultrathin composite films containing cobalt phthalocyanine (CoPc) and poly(diallydimethyl ammonium chloride) (PDDA) were fabricated through layer-by-layer assembly technique. The resulting films were characterized by UV-Vis spectroscopy and atomic force microscopy. Their third-order nonlinear optical properties and photo-excitation dynamics were investigated with 20 ps laser pulses at 532 nm. The results demonstrate that the ultrathin films have notable third order optical nonlinearities (χ⁽³⁾∼4.7 × 10⁻⁹ (esu)) and fast excited-state relaxation (τ∼67 ± 6 ps), indicating their potential applications in future nonlinear optical devices.

Original language	English
Pages (from-to)	279-281
Number of pages	3
Journal	Materials Letters
Volume	221
DOIs	https://doi.org/10.1016/j.matlet.2018.03.136
State	Published - 15 Jun 2018

Keywords

Optical materials and properties
Organic
Thin films

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10.1016/j.matlet.2018.03.136

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@article{a2f818c903af4b31817d037424f43491,

title = "Optical nonlinearities and excited state dynamics of self-assembled cobalt phthalocyanine multilayer films",

abstract = "An ultrathin composite films containing cobalt phthalocyanine (CoPc) and poly(diallydimethyl ammonium chloride) (PDDA) were fabricated through layer-by-layer assembly technique. The resulting films were characterized by UV-Vis spectroscopy and atomic force microscopy. Their third-order nonlinear optical properties and photo-excitation dynamics were investigated with 20 ps laser pulses at 532 nm. The results demonstrate that the ultrathin films have notable third order optical nonlinearities (χ(3)∼4.7 × 10−9 (esu)) and fast excited-state relaxation (τ∼67 ± 6 ps), indicating their potential applications in future nonlinear optical devices.",

keywords = "Optical materials and properties, Organic, Thin films",

author = "Zhongguo Li and Chunying He and Jingze Fan and Yiqun Wu and Yushen Liu and Jinfu Feng and Yinglin Song",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier B.V.",

year = "2018",

month = jun,

day = "15",

doi = "10.1016/j.matlet.2018.03.136",

language = "英语",

volume = "221",

pages = "279--281",

journal = "Materials Letters",

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TY - JOUR

T1 - Optical nonlinearities and excited state dynamics of self-assembled cobalt phthalocyanine multilayer films

AU - Li, Zhongguo

AU - He, Chunying

AU - Fan, Jingze

AU - Wu, Yiqun

AU - Liu, Yushen

AU - Feng, Jinfu

AU - Song, Yinglin

PY - 2018/6/15

Y1 - 2018/6/15

N2 - An ultrathin composite films containing cobalt phthalocyanine (CoPc) and poly(diallydimethyl ammonium chloride) (PDDA) were fabricated through layer-by-layer assembly technique. The resulting films were characterized by UV-Vis spectroscopy and atomic force microscopy. Their third-order nonlinear optical properties and photo-excitation dynamics were investigated with 20 ps laser pulses at 532 nm. The results demonstrate that the ultrathin films have notable third order optical nonlinearities (χ(3)∼4.7 × 10−9 (esu)) and fast excited-state relaxation (τ∼67 ± 6 ps), indicating their potential applications in future nonlinear optical devices.

AB - An ultrathin composite films containing cobalt phthalocyanine (CoPc) and poly(diallydimethyl ammonium chloride) (PDDA) were fabricated through layer-by-layer assembly technique. The resulting films were characterized by UV-Vis spectroscopy and atomic force microscopy. Their third-order nonlinear optical properties and photo-excitation dynamics were investigated with 20 ps laser pulses at 532 nm. The results demonstrate that the ultrathin films have notable third order optical nonlinearities (χ(3)∼4.7 × 10−9 (esu)) and fast excited-state relaxation (τ∼67 ± 6 ps), indicating their potential applications in future nonlinear optical devices.

KW - Optical materials and properties

KW - Organic

KW - Thin films

UR - https://www.scopus.com/pages/publications/85044443597

U2 - 10.1016/j.matlet.2018.03.136

DO - 10.1016/j.matlet.2018.03.136

M3 - 文章

AN - SCOPUS:85044443597

SN - 0167-577X

VL - 221

SP - 279

EP - 281

JO - Materials Letters

JF - Materials Letters

ER -

Optical nonlinearities and excited state dynamics of self-assembled cobalt phthalocyanine multilayer films

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