Effect of thermal annealing on the structural and optical properties of spin coated copper phthalocyanine thin films

被引：19

作者：

Afify, H. A. ^{[1
]}

Gadallah, A-S ^{[1
]}

El-Nahass, M. M. ^{[2
]}

Khedr, M. Atta ^{[1
]}

机构：

[1] Cairo Univ, Natl Inst Laser Enhanced Sci, Dept Laser Sci & Interact, Giza 12613, Egypt

[2] Ain Shams Univ, Dept Phys, Fac Educ, Cairo 11757, Egypt

来源：

JOURNAL OF MOLECULAR STRUCTURE | 2015年 / 1098卷

关键词：

Copper phthalocyanine; Thin films; Spin coating; Annealing; Optical properties; Nonlinear susceptibility; ORGANIC ELECTROLUMINESCENT DEVICES; FIELD-EFFECT TRANSISTOR; CRYSTAL-STRUCTURE; SOLAR-CELLS; HETEROJUNCTION; DIFFRACTION; PERFORMANCE; CONSTANTS; TRANSPORT; GROWTH;

D O I：

10.1016/j.molstruc.2015.06.016

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Low cost sol gel spin coating was used to deposit copper phthalocyanine (CuPc) thin films on both fused quartz and glass substrate. The prepared films were studied before and after thermal annealing at 350 degrees C for 1 h in air. X-ray diffraction (XRD) and field emission scanning electron microscope (FESEM) were used to study the structural properties. From the structural characterization results, the films transformed from the metastable alpha-phase to the stable beta-phase. Refractive index, absorption coefficient, and lattice dielectric constant were evaluated before and after annealing for the first time for spin coated CuPc thin films using spectrophotometric measurements in the spectral range 200-2500 nm. The values of the direct optical band gap of the as deposited film at 1.52 eV and 2.85 eV were redshifted to 1.4 eV and 2.42 eV for the annealed film. This shift is significant for near infrared photonics. The third order non-linear susceptibility was presented at lower photon energy for the CuPc films showing higher value for the annealed film. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：161 / 166

页数：6

共 56 条

[1] The effect of growth parameters on the electrical, optical and structural properties of copper phthalocyanine thin films [J].

Ambily, S ;

Menon, CS .

THIN SOLID FILMS, 1999, 347 (1-2) :284-288

[2] Organic/Organic' Heterojunctions: Organic Light Emitting Diodes and Organic Photovoltaic Devices [J].

Armstrong, Neal R. ;

Wang, Weining ;

Alloway, Dana M. ;

Placencia, Diogenes ;

Ratcliff, Erin ;

Brumbach, Michael .

MACROMOLECULAR RAPID COMMUNICATIONS, 2009, 30 (9-10) :717-731

[3] The copper phthalocyanine/Au(100) interface studied using high resolution electron energy-loss spectroscopy [J].

Auerhammer, JM ;

Knupfer, M ;

Peisert, H ;

Fink, J .

SURFACE SCIENCE, 2002, 506 (03) :333-338

[4] X-ray powder diffraction structure reinvestigation of the α and β forms of cobalt phthalocyanine and kinetics of the α→β phase transition [J].

Ballirano, P ;

Caminiti, R ;

Ercolani, C ;

Maras, A ;

Orrù, MA .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1998, 120 (49) :12798-12807

[5] CRYSTAL STRUCTURE OF BETA-COPPER PHTHALOCYANINE [J].

BROWN, CJ .

JOURNAL OF THE CHEMICAL SOCIETY A -INORGANIC PHYSICAL THEORETICAL, 1968, (10) :2488-&

[6]

Cha DJ, 2005, J KOREAN PHYS SOC, V46, pS112

[7] OPTICAL-RECORDING USING COPPER PHTHALOCYANINE THIN-FILMS [J].

CHEN, QY ;

GU, DH ;

GAN, FX .

SOLID-STATE ELECTRONICS, 1994, 37 (10) :1768-1770

[8] Efficient planar organic solar cells with the high near-infrared response [J].

Chen, Weichao ;

Huang, Lizhen ;

Qiao, Xiaolan ;

Yang, Jianbing ;

Yu, Bo ;

Yan, Donghang .

ORGANIC ELECTRONICS, 2012, 13 (06) :1086-1091

[9] ORGANIC-THIN-FILM-INDUCED MOLECULAR EPITAXY FROM THE VAPOR-PHASE [J].

DEBE, MK ;

POIRIER, RJ ;

KAM, KK .

THIN SOLID FILMS, 1991, 197 (1-2) :335-347

[10] Effects of substrate temperature on copper(II) phthalocyanine thin films [J].

E, JY ;

Kim, S ;

Lim, EJ ;

Lee, KJ ;

Cha, DJ ;

Friedman, B .

APPLIED SURFACE SCIENCE, 2003, 205 (1-4) :274-279

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