Engineering vertical morphology with nanoparticulate organic photovoltaic devices

被引:19
作者
Vaughan, Ben [1 ]
Stapleton, Andrew [2 ]
Sesa, Elisa [3 ]
Holmes, Natalie P. [1 ]
Zhou, Xiaojing [1 ]
Dastoor, Paul C. [1 ]
Belcher, Warwick J. [1 ]
机构
[1] Univ Newcastle, Ctr Organ Elect, Callaghan, NSW 2308, Australia
[2] Univ S Australia, Australia Future Ind Inst, Mawson Lakes, SA 5095, Australia
[3] Tadulako Univ, Dept Phys, Kampus Bumi Tadulako, Tondo 94118, Palu, Indonesia
关键词
Nanoparticle; Graded; Morphology; Organic photovoltaic; SOLAR-CELLS; SELF-ORGANIZATION; PHASE-SEPARATION; POLYMER; PERFORMANCE; EFFICIENCY; SEGREGATION; DEGRADATION; EVOLUTION; P3HT/PCBM;
D O I
10.1016/j.orgel.2016.02.022
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Sequential deposition of monolayers, composed of nanoparticles with varied donor-acceptor concentration ratios, has allowed the fabrication of organic photovoltaic (OPV) active layers with engineered vertical morphology. The performance of polymer-polymer poly(9,9-dioctylfluorene-co-bis-N, N-phenyl1,4-phenylenediamine): poly[(9,9-di-n-octylfluorenyl-2,7-diyl)-alt-(benzo[2,1,3] thiadiazol-4,8-diyl)] (PFB:F8BT) and polymer-fullerene poly(3-hexylthiophene): phenyl C61 butyric acid methyl ester (P3HT:PCBM) nanoparticulate (NP), graded nanoparticulate (GNP) and bulk heterojunction (BHJ) OPV devices have been studied. For both material systems the highest device V-OC is observed for the graded structure. Furthermore, thermal treatments can be used to alleviate parasitic series resistance in the GNP devices, thus improving device J(SC) and efficiency. Overall, this work shows that the nanoparticle approach provides a new experimental lever for morphology control in OPV devices. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码:250 / 257
页数:8
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