Searched for: author%3A%22Wetzelaer%2C+G.-J.A.H.%22
(1 - 9 of 9)
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Wetzelaer, G.-J.A.H. (author), Kuik, M. (author), Olivier, Y. (author), Lemaur, V. (author), Cornil, J. (author), Fabiano, S. (author), Loi, M.A. (author), Blom, P.W.M. (author)
Electron- and hole-transport properties of the n-type copolymer poly{[N,N′-bis(2-octyldodecyl)-naphthalene-1,4,5,8-bis(dicarboximide)-2, 6-diyl]-alt-5,5′-(2,2′-dithiophene)} [P(NDI2OD-T2), PolyeraActivInk™ N2200] are investigated. Electron- and hole-only devices with Ohmic contacts are demonstrated, exhibiting trap-free space-charge-limited...
article 2012
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Wetzelaer, G.-J.A.H. (author), Kuik, M. (author), Blom, P.W.M. (author)
Charge-transfer (CT) state electroluminescence is investigated in several polymer:fullerene bulk heterojunction solar cells. The ideality factor of the electroluminescence reveals that the CT emission in polymer:fullerene solar cells originates from free-carrier bimolecular recombination at the donor-acceptor interface, rather than a charge-trap...
article 2012
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Bouwer, R.K.M. (author), Wetzelaer, G.-J.A.H. (author), Blom, P.W.M. (author), Hummelen, J.C. (author)
We synthesized three isomeric subpopulations of bisadduct analogues of [6,6]-phenyl-C61-butyric acid methyl ester (bis-PCBM) via tether-directed control. Bulk heterojunction solar cells prepared using these isomers together with poly(3-hexylthiophene) (P3HT) resulted in an increase of Jsc from 72.4 to 79.6 A m-2, and an improvement in fill...
article 2012
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Lu, M. (author), de Bruyn, P. (author), Nicolai, H.T. (author), Wetzelaer, G.-J.A.H. (author), Blom, P.W.M. (author)
article 2012
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Lu, M. (author), Nicolai, H.T. (author), Wetzelaer, G.-J.A.H. (author), Blom, P.W.M. (author)
The electron transport in poly(p-phenylene vinylene) (PPV) derivatives blended with the air-stable n-type dopant (4-(1,3-dimethyl-2,3-dihydro-1H- benzoimidazol-2-yl)phenyl)dimethylamine (N-DMBI) is investigated. This dopant is activated after thin film deposition by annealing and strongly enhances the electron transport due to filling of...
article 2011
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Kuik, M. (author), Nicolai, H.T. (author), Lenes, M. (author), Wetzelaer, G.-J.A.H. (author), Lu, M. (author), Blom, P.W.M. (author)
The recombination processes in poly(p -phenylene vinylene) based polymer light-emitting diodes (PLEDs) are investigated. Photogenerated current measurements on PLED device structures reveal that next to the known Langevin recombination also trap-assisted recombination is an important recombination channel in PLEDs, which has not been considered...
article 2011
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Kuik, M. (author), Wetzelaer, G.-J.A.H. (author), Laddé, J.G. (author), Nicolai, H.T. (author), Wildeman, J. (author), Sweelssen, J. (author), Blom, P.W.M. (author)
The effect of on-chain ketone defects on the charge transport of the polyfluorene derivative poly(9,9-dioctylfluorene) (PFO) is investigated. Using MoO3 as ohmic hole contact, the hole transport in a pristine PFO diode is observed to be limited by space-charge, whereas fluorenone contaminated PFO (PFO-F) is shown to be trap limited by the...
article 2011
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Lu, M. (author), Nicolai, H.T. (author), Wetzelaer, G.-J.A.H. (author), Blom, P.W.M. (author)
N-type doping of poly(2-methoxy-5-(2′-ethyl-hexyloxy)-p-phenylene vinylene) (MEH-PPV) with decamethylcobaltocene (DMC) strongly improves the electron transport due to filling of the electron traps. Unexpectedly, the n-type doping simultaneously suppresses the hole transport in MEH-PPV. We demonstrate that this strong reduction of the hole...
article 2011
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Lu, M. (author), Nicolai, H.T. (author), Kuik, M. (author), Wetzelaer, G.-J.A.H. (author), Wildeman, J. (author), Palmaerts, A. (author), Blom, P.W.M. (author)
We demonstrate a solution processed bi-layer PLED based on poly(p-phenylene vinylene) derivatives using orthogonal solvents. To lower the voltage drop the hole transport layer (HTL) based on poly[2,5-bis(2-ethylhexyloxy)-co-2,5- bis(butoxy)-1,4-phenylenevinylene] (BEH/BB-PPV (1:3)) is doped with tetracyano-tetrafluoro-quinodimethane (F4TCNQ)....
article 2011
Searched for: author%3A%22Wetzelaer%2C+G.-J.A.H.%22
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