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Theelen, M. (author), Liakopoulou, A. (author), Hans, V. (author), Daume, F. (author), Steijvers, H. (author), Barreau, N. (author), Vroon, Z. (author), Zeman, M. (author)Two types of Cu(In,Ga)Se2 (CIGS) solar cells, both designed for implementation in CIGS modules, were subjected to temperatures between 25C and 105C. Simultaneous exposure to AM1.5 illumination allowed the measurement of their electrical parameters at these temperatures. These two types of solar cells, produced with different deposition routes on...article 2017
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Wetzelaer, G.A.H. (author), Kuik, M. (author), Lenes, M. (author), Blom, P.W.M. (author)In organic bulk heterojunction solar cells, a deviation of the ideality factor of the dark current from unity is commonly put forward as evidence for the presence of trap-assisted recombination. We demonstrate that the non-ideality of the dark characteristics is determined by deeply trapped carriers in the transport-dominating constituent of the...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