Thermal ageing of bulk heterojunction polymer solar cells investigated by electric noise analysis

被引：26
作者：
Barone, C. [1 ,2 ]
Landi, G. [3 ]
De Sio, A. [4 ]
Neitzert, H. C. [5 ]
Pagano, S. [1 ,2 ]
机构：
[1] Univ Salerno, Dipartimento Fis ER Caianiello, I-84084 Salerno, Italy
[2] Univ Salerno, CNR SPIN Salerno, I-84084 Salerno, Italy
[3] Fernuniv, Fac Math & Comp Sci, D-58084 Hagen, Germany
[4] Carl von Ossietzky Univ Oldenburg, Inst Phys, D-26111 Oldenburg, Germany
[5] Univ Salerno, Dipartimento Ingn Ind, I-84084 Salerno, Italy
来源：
SOLAR ENERGY MATERIALS AND SOLAR CELLS | 2014年 / 122卷
关键词：
Bulk heterojunction solar cells; Organic photovoltaics; Electric noise processes; DEGRADATION; LIGHT; CRYSTALLIZATION; SEPARATION; DYNAMICS; NETWORK; P3HT;
D O I：
10.1016/j.solmat.2013.11.020
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Temperature is one of the most specific external parameters that can accelerate the degradation rate in polymer:fullerene solar cells. To detect modifications of the active layer materials, electric noise spectroscopy is a sensitive experimental technique. A detailed characterization of the dc electric transport and voltage noise properties shows how thermal ageing is detrimental for the investigated bulk heterojunction photovoltaic system. In particular, an increase of the energy barrier height at the interface between the metal contact and the blend, and a simultaneous decrease of the charge carrier zero-field mobility, evaluated through the analysis of the flicker noise component, are observed as a consequence of a thermal treatment. These effects can be related to morphological changes of the solar cell active layer and interface, and are revealed by monitoring the noise level. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：40 / 45
页数：6
相关论文
共 44 条
  • [1] Room to Improve Conjugated Polymer-Based Solar Cells: Understanding How Thermal Annealing Affects the Fullerene Component of a Bulk Heterojunction Photovoltaic Device
    Ayzner, Alexander L.
    Wanger, Darcy D.
    Tassone, Christopher J.
    Tolbert, Sarah H.
    Schwartz, Benjamin J.
    [J]. JOURNAL OF PHYSICAL CHEMISTRY C, 2008, 112 (48) : 18711 - 18716
  • [2] Balandin AA, 2013, NAT NANOTECHNOL, V8, P549, DOI [10.1038/nnano.2013.144, 10.1038/NNANO.2013.144]
  • [3] Thermal and voltage activated excess 1/f noise in FeTe0.5Se0.5 epitaxial thin films
    Barone, C.
    Pagano, S.
    Pallecchi, I.
    Bellingeri, E.
    Putti, M.
    Ferdeghini, C.
    [J]. PHYSICAL REVIEW B, 2011, 83 (13):
  • [4] Effect of concentration on low-frequency noise of multiwall carbon nanotubes in high-density polyethylene matrix
    Barone, C.
    Pagano, S.
    Neitzert, H. C.
    [J]. APPLIED PHYSICS LETTERS, 2010, 97 (15)
  • [5] Experimental technique for reducing contact and background noise in voltage spectral density measurements
    Barone, C.
    Galdi, A.
    Pagano, S.
    Quaranta, O.
    Mechin, L.
    Routoure, J-M
    Perna, P.
    [J]. REVIEW OF SCIENTIFIC INSTRUMENTS, 2007, 78 (09)
  • [6] Unusual dependence of resistance and voltage noise on current in La1-xSrxMnO3 ultrathin films
    Barone, C.
    Adamo, C.
    Galdi, A.
    Orgiani, P.
    Petrov, A. Yu.
    Quaranta, O.
    Maritato, L.
    Pagano, S.
    [J]. PHYSICAL REVIEW B, 2007, 75 (17)
  • [7] Improved thermal stability of bulk heterojunctions based on side-chain functionalized poly(3-alkylthiophene) copolymers and PCBM
    Bertho, Sabine
    Campo, Bert
    Piersimoni, Fortunato
    Spoltore, Donato
    D'Haen, Jan
    Lutsen, Laurence
    Maes, Wouter
    Vanderzande, Dirk
    Manca, Jean
    [J]. SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2013, 110 : 69 - 76
  • [8] Current-Voltage Characteristics of Bulk Heterojunction Organic Solar Cells: Connection Between Light and Dark Curves
    Boix, Pablo P.
    Guerrero, Antonio
    Marchesi, Luis F.
    Garcia-Belmonte, Germa
    Bisquert, Juan
    [J]. ADVANCED ENERGY MATERIALS, 2011, 1 (06) : 1073 - 1078
  • [9] Electrical mobility in organic thin-film transistors determined by noise spectroscopy
    Bonavolonta, C.
    Albonetti, C.
    Barra, M.
    Valentino, M.
    [J]. JOURNAL OF APPLIED PHYSICS, 2011, 110 (09)
  • [10] LIGHT-EMITTING-DIODES BASED ON CONJUGATED POLYMERS
    BURROUGHES, JH
    BRADLEY, DDC
    BROWN, AR
    MARKS, RN
    MACKAY, K
    FRIEND, RH
    BURN, PL
    HOLMES, AB
    [J]. NATURE, 1990, 347 (6293) : 539 - 541
12345