Investigation of optical properties of annealed aluminum phthalocyanine derivatives thin films

被引：10

作者：

Sanchez-Vergara, M. E. ^{[1
]}

Rivera, M. ^{[2
]}

机构：

[1] Univ Anahuac Mexico Norte, Fac Ingn, Huixquilucan 52786, Estado De Mexic, Mexico

[2] Univ Nacl Autonoma Mexico, Dpto Mat Condensada, Inst Fis, Mexico City 04510, DF, Mexico

来源：

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 2014年 / 75卷 / 05期

关键词：

Thin films; Electronic materials; Optical properties; COPPER-PHTHALOCYANINE; ABSORPTION; SEMICONDUCTOR; PARAMETERS; DISPERSION;

D O I：

10.1016/j.jpcs.2014.01.006

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Semiconducting molecular materials based on aluminum phthalocyanine chloride (AlPcCl) and bidentate amines have been successfully used to prepare thin films by using a thermal evaporation technique. The morphology of the deposited films was studied by scanning electron microscopy (SEM) and atomic force microscopy (AFM). Studies of the optical properties were carried out on films deposited onto quartz and (1 0 0) monocrystalline silicon wafers and films annealed after deposition. The absorption spectra recorded in the UV-vis region for the as-deposited and annealed samples showed two absorption bands, namely the Q- and B-bands. In addition, an energy doublet in the absorption spectra of the monoclinic form at 1.81 and 1.99 eV was observed. A band-model theory was employed in order to determine the optical parameters. The fundamental energy gap (direct transitions) was determined to be within the 2.47-2.59 and 2.24-2.44 eV ranges, respectively, for the as-deposited and annealed thin films. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：599 / 605

页数：7

共 37 条

[21] Optical absorption parameters of amorphous carbon films from Forouhi-Bloomer and Tauc-Lorentz models: a comparative study [J].

Laidani, N. ;

Bartali, R. ;

Gottardi, G. ;

Anderle, M. ;

Cheyssac, P. .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2008, 20 (01)

[22] Assistance of partially reduced MoO3 interlayer to hole-injection at iron phthalocyanine/ITO interface evidenced by photoemission study [J].

Liu, L. Y. ;

Wan, L. ;

Cao, L. ;

Han, Y. Y. ;

Zhang, W. H. ;

Chen, T. X. ;

Guo, P. P. ;

Wang, K. ;

Xu, F. Q. .

APPLIED SURFACE SCIENCE, 2013, 271 :352-356

[23] Electrical and optical properties of bismuth sulphotelluride (Bi2(S1-xTex)3) thin films prepared by arrested precipitation technique (APT) [J].

Mane, RK ;

Ajalkar, BD ;

Bhosale, PN .

MATERIALS CHEMISTRY AND PHYSICS, 2003, 82 (03) :534-537

[24] The dependence of the Tauc and Cody optical gaps associated with hydrogenated amorphous silicon on the film thickness:: αl Experimental limitations and the impact of curvature in the Tauc and Cody plots [J].

Mok, Tat M. ;

O'Leary, Stephen K. .

JOURNAL OF APPLIED PHYSICS, 2007, 102 (11)

[25] Synthesis and electrical, spectroscopic and nonlinear optical properties of cobalt molecular materials obtained from PcCo(CN)L (L = ethylenediamine, 1,4-diaminebutane, 1,12-diaminododecane and 2,6-diamineanthraquinone) [J].

Morales-Saavedra, O. G. ;

Sanchez-Vergara, M. E. ;

Rodriguez-Rosales, A. A. ;

Ortega-Martinez, R. ;

Ortiz-Rebollo, A. ;

Frontana-Uribe, B. A. ;

Garcia-Montalvo, V. .

MATERIALS CHEMISTRY AND PHYSICS, 2010, 123 (2-3) :776-785

[26] Investigation of structural and optoelectronic properties of annealed nickel phthalocyanine thin films [J].

Neghabi, Mina ;

Zadsar, Mehdi ;

Ghorashi, Seyed Mohammad Bagher .

MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING, 2014, 17 :13-20

[27] On determining the optical gap associated with an amorphous semiconductor: A generalization of the Tauc model [J].

OLeary, SK ;

Lim, PK .

SOLID STATE COMMUNICATIONS, 1997, 104 (01) :17-21

[28] Thin and ultra-thin films of nickel phthalocyanine grown on highly oriented pyrolitic graphite: An XPS, UHV-AFM and air tapping-mode AFM study [J].

Ottaviano, L ;

DiNardo, S ;

Lozzi, L ;

Passacantando, M ;

Picozzi, P ;

Santucci, S .

SURFACE SCIENCE, 1997, 373 (2-3) :318-332

[29] DC electrical and optical properties of vacuum-deposited organic semiconductor FePcCl thin films [J].

Rajesh, KR ;

Menon, CS .

CANADIAN JOURNAL OF PHYSICS, 2005, 83 (11) :1151-1159

[30] The Impact of Molecular Orientation on the Photovoltaic Properties of a Phthalocyanine/Fullerene Heterojunction [J].

Rand, Barry P. ;

Cheyns, David ;

Vasseur, Karolien ;

Giebink, Noel C. ;

Mothy, Sebastien ;

Yi, Yuanping ;

Coropceanu, Veaceslav ;

Beljonne, David ;

Cornil, Jerome ;

Bredas, Jean-Luc ;

Genoe, Jan .

ADVANCED FUNCTIONAL MATERIALS, 2012, 22 (14) :2987-2995

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