Effects of the graphene doping level on the optical and electrical properties of ITO/P3HT:Graphene/Au organic solar cells

被引：27
作者：
Bkakri, R. [1 ]
Sayari, A. [2 ,3 ]
Shalaan, E. [4 ]
Wageh, S. [4 ,5 ]
Al-Ghamdi, A. A. [4 ]
Bouazizi, A. [1 ]
机构：
[1] Fac Sci Monastir, Lab Matiere Condensee & Nanosci, Equipe Dispositifs Elect Organ & Photovoltar Mol, Monastir 5019, Tunisia
[2] King Abdulaziz Univ, Fac Sci, Dept Phys, North Jeddah Branch, Jeddah 21589, Saudi Arabia
[3] Fac Sci Tunis, Dept Phys, Equipe Spect Raman, Tunis 2092, Tunisia
[4] King Abdulaziz Univ, Fac Sci, Dept Phys, Jeddah 21589, Saudi Arabia
[5] Menoufia Univ, Fac Elect Engn, Phys & Engn Math Dept, Menoufia 32952, Egypt
来源：
SUPERLATTICES AND MICROSTRUCTURES | 2014年 / 76卷
关键词：
RR-P3HT; Graphene; Bulk heterojunction; Spectroscopic ellipsometry; Electrical characteristics; CONJUGATED POLYMERS; BAND-GAP; PERFORMANCE; FILMS;
D O I：
10.1016/j.spmi.2014.10.016
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The effects of the graphene doping level on the optical and electrical properties of ITO/P3HT:Graphene/Au solar cells are investigated. The spectroscopic ellipsometry (SE) analysis proves that the insertion of low graphene content in the P3HT matrix reduces the optical bandgap of the P3HT:Graphene nanocomposite and the thickness of the film. As a result the optical absorption properties of the device are enhanced in the visible range. The device elaborated with the lower graphene content displays a J(SC) = 9.93 x 10(-4) A/cm(2), a If V-OC = 0.55 V and FF = 41%, under illumination. These results are in good agreement with the SE analyzes since the device elaborated with the lower graphene content exhibits the higher optical parameters. The origin of the improved energy conversion efficiency for low graphene doping level is discussed in this work. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：461 / 471
页数：11
相关论文
共 31 条
[1]   Calculation of various physics constants in heterogenous substances I Dielectricity constants and conductivity of mixed bodies from isotropic substances [J].
Bruggeman, DAG .
ANNALEN DER PHYSIK, 1935, 24 (07) :636-664
[2]   Investigation of polarization effects in organic thin films by surface core-level shifts [J].
Casu, M. B. ;
Zou, Y. ;
Kera, S. ;
Batchelor, D. ;
Schmidt, Th. ;
Umbach, E. .
PHYSICAL REVIEW B, 2007, 76 (19)
[3]   Optical and electrical properties of conducting polymer-functionalized carbon nanotubes nanocomposites [J].
Chehata, Nadia ;
Ltaief, Adnen ;
Bkakri, Rabeb ;
Bouazizi, Abdelaziz .
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING, 2014, 22 :7-15
[4]   REGIOCONTROLLED SYNTHESIS OF POLY(3-ALKYLTHIOPHENES) MEDIATED BY RIEKE ZINC - THEIR CHARACTERIZATION AND SOLID-STATE PROPERTIES [J].
CHEN, TA ;
WU, XM ;
RIEKE, RD .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1995, 117 (01) :233-244
[5]   Energetics of excited states in the conjugated polymer poly(3-hexylthiophene) [J].
Deibel, Carsten ;
Mack, Daniel ;
Gorenflot, Julien ;
Schoell, Achim ;
Krause, Stefan ;
Reinert, Friedrich ;
Rauh, Daniel ;
Dyakonov, Vladimir .
PHYSICAL REVIEW B, 2010, 81 (08)
[6]   Optical performance and color investigations of hybrid solar cells based on P3HT:ZnO, PCPDTBT:ZnO, PTB7:ZnO and DTS(PTTh2)2:ZnO [J].
Duche, D. ;
Bencheikh, F. ;
Ben Dkhil, S. ;
Gaceur, M. ;
Berton, N. ;
Margeat, O. ;
Ackermann, J. ;
Simon, J. J. ;
Escoubas, L. .
SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2014, 126 :197-204
[7]   The rise of graphene [J].
Geim, A. K. ;
Novoselov, K. S. .
NATURE MATERIALS, 2007, 6 (03) :183-191
[8]   Recent progress of bulk heterojunction solar cells based on small-molecular donors [J].
Huang QiuLiu ;
Li HongXiang .
CHINESE SCIENCE BULLETIN, 2013, 58 (22) :2677-2685
[9]   Perspectives of applied graphene: Polymer solar cells [J].
Iwan, Agnieszka ;
Chuchmala, Andrzej .
PROGRESS IN POLYMER SCIENCE, 2012, 37 (12) :1805-1828
[10]   Parameterization of the optical functions of amorphous materials in the interband region (vol 69, pg 371, 1996) [J].
Jellison, GE ;
Modine, FA .
APPLIED PHYSICS LETTERS, 1996, 69 (14) :2137-2137
1234