Journal ArticleDOI
Nanoscale Morphology of High-Performance Polymer Solar Cells
Xiaoniu Yang,J Joachim Loos,Sjoerd Veenstra,Wiljan Verhees,MM Martijn Wienk,Jan M. Kroon,Matthias A. J. Michels,René A. J. Janssen +7 more
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TLDR
Both the improved crystalline nature of films and increased but controlled demixing between the two constitutes therein after annealing explains the considerable increase of the power conversion efficiency observed in these devices.Abstract:
Transmission electron microscopy and electron diffraction are used to study the changes in morphology of composite films of poly(3-hexylthiophene) (P3HT) and a methanofullerene derivative (PCBM) in bulk heterojunction solar cells. Thermal annealing produces and stabilizes a nanoscale interpenetrating network with crystalline order for both components. P3HT forms long, thin conducting nanowires in a rather homogeneous, nanocrystalline PCBM film. Both the improved crystalline nature of films and increased but controlled demixing between the two constitutes therein after annealing explains the considerable increase of the power conversion efficiency observed in these devices.read more
Citations
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Polymer design for solar cell – Current trend and future scenario
TL;DR: In this article, the authors discussed the various polymeric designs (P1-172) encompassed of electron rich donor and electron deficient acceptor moieties in the main chain as well as in the side chain to facilitate effective intra-molecular charge transfer.
Journal ArticleDOI
The influence of additive property on performance of organic bulk heterojunction solar cells
Jiangang Liu,Yanchun Han +1 more
TL;DR: The performance of bulk heterojunction organic solar cells based upon blends of donor and acceptor materials has been shown to be highly dependent on the microstructure and photoelectric properties of active layer as mentioned in this paper.
Journal ArticleDOI
Enhanced thermal stability of organic solar cells by using photolinkable end-capped polythiophenes
Sokha Khiev,Lionel Derue,Getachew Ayenew,Hussein Medlej,Ross Brown,Laurent Rubatat,Roger C. Hiorns,Guillaume Wantz,Christine Dagron-Lartigau +8 more
TL;DR: In this paper, the use of poly(3-hexylthiophene) (P3HT) endcapped with anthracene in a blend with [6,6]-phenyl C61 butyric acid methyl ester (PCBM) is demonstrated to physically stabilize bulk-heterojunction photovoltaic solar cells.
Journal ArticleDOI
Bilayer polymer solar cells prepared with transfer printing of active layers from controlled swelling/de-swelling of PDMS
Anisha Mohapatra,Anisha Mohapatra,Anupriya Singh,Anupriya Singh,Syed Ali Abbas,Syed Ali Abbas,Yu-Jung Lu,Karunakara Moorthy Boopathi,Chintam Hanmandlu,Nahid Kaisar,Nahid Kaisar,Chih-Hao Lee,Chih-Hao Lee,Chih-Wei Chu,Chih-Wei Chu,Chih-Wei Chu +15 more
TL;DR: In this article, a facile method for transferring thin films to achieve polymer solar cells having stacked structures was demonstrated, and the optimal graded bilayer solar cell exhibited a power conversion efficiency (PCE) of 5.13% an impressive value compared with that obtained for the corresponding bilayer cell (3.67%).
Journal ArticleDOI
Enhanced thermal stability of organic photovoltaics via incorporating triphenylamine derivatives as additives
Ying-Chieh Chao,Chia-Hsin Chuang,Hsiang-Lin Hsu,Hsing-Ju Wang,Yu-Chi Hsu,Chih-Ping Chen,Ru-Jong Jeng +6 more
TL;DR: In this paper, triphenylamine dithiophene (TBT) derivatives were used as additives in the active layers of organic photovoltaics to investigate the effect of intermolecular interactions on the long-term thermal stability of the devices.
References
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Journal ArticleDOI
Hybrid Nanorod-Polymer Solar Cells
TL;DR: It is demonstrated that semiconductor nanorods can be used to fabricate readily processed and efficient hybrid solar cells together with polymers and Tuning the band gap by altering the nanorod radius enabled us to optimize the overlap between the absorption spectrum of the cell and the solar emission spectrum.
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Two‐layer organic photovoltaic cell
TL;DR: In this paper, a two-layer organic photovoltaic cell was fabricated from copper phthalocyanine and a perylene tetracarboxylic derivative, achieving a power conversion efficiency of about 1% under simulated AM2 illumination.
Journal ArticleDOI
Two-dimensional charge transport in self-organized, high-mobility conjugated polymers
Henning Sirringhaus,Peter J. Brown,Richard H. Friend,Martin Nielsen,Klaus Bechgaard,B.M.W. Langeveld-Voss,A. J. H. Spiering,René A. J. Janssen,E. W. Meijer,P. T. Herwig,Dago M. de Leeuw +10 more
TL;DR: In this article, the authors used thin-film, field effect transistor structures to probe the transport properties of the ordered microcrystalline domains in the conjugated polymer poly(3-hexylthiophene), P3HT.
Journal ArticleDOI
Efficient photodiodes from interpenetrating polymer networks
J. J. M. Halls,C. A. Walsh,Neil C. Greenham,E.A. Marseglia,Richard H. Friend,Stephen C. Moratti,A.B. Holmes +6 more
TL;DR: In this paper, the interpenetrating network formed from a phase-segregated mixture of two semiconducting polymers is shown to provide both the spatially distributed interfaces necessary for efficient charge photo-generation, and the means for separately collecting the electrons and holes.
Journal ArticleDOI
Integrated Optoelectronic Devices Based on Conjugated Polymers
TL;DR: An all-polymer semiconductor integrated device is demonstrated with a high-mobility conjugated polymer field-effect transistor driving a polymer light-emitting diode (LED) of similar size, which represents a step toward all- polymer optoelectronic integrated circuits such as active-matrix polymer LED displays.