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Savenije, T.J. (author), Zhao, J. (author), Caselli, V.M. (author)Perovskite-based solar cells have been rapidly developed, with record power conversion efficiencies now exceeding 25%. In order to rationally improve the efficiency of these devices, it is important to understand and quantify the dynamics of the excess charge carriers.book chapter 2023
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- Quist, P.A.C. (author), Savenije, T.J. (author), Schins, J.M. (author), Kroeze, J.E. (author), Rijkers, P.A. (author), Siebbeles, L.D.A. (author) journal article 2007
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- Prins, P. (author), Grozema, F.C. (author), Schins, J.M. (author), Savenije, T.J. (author), Patil, S. (author), Scherf, U. (author), Siebbeles, L.D.A. (author) journal article 2006
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Günba?, D.D. (author), Xue, C. (author), Patwardhan, S. (author), Fravventura, M.C. (author), Zhang, H. (author), Jager, W.F. (author), Sudhölter, E.J.R. (author), Laurens, D.A. (author), Siebbeles, L.D.A. (author), Savenije, T.J. (author), Jin, S. (author), Grozema, F.C. (author)In this communication we report on the synthesis and charge mobility of highly soluble perylenebisimid derivatives.We show that introduction of alkylester side chains results in compounds combining a high solubility with charge mobilities up to 0.22 cm2 V_1 s_1. These materials are therefore interesting as an electron acceptor for solution...journal article 2014
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- Savenije, T.J. (author), Goossens, A. (author) journal article 2001
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Savenije, T.J. (author), Nanu, M. (author), Schoonman, J. (author), Goossens, A. (author)Photoinduced interfacial charge carrier generation, separation, trapping, and recombination in TiO2?In2S3?CuInS2 cells have been studied with time-resolved microwave conductivity (TRMC). Single layer, double layer, and complete triple layer configurations have been studied. Selective electronic excitation in one of the components is accomplished...journal article 2007
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Seshan, V. (author), Ullien, D. (author), Castellanos-Gomez, A. (author), Sachdeva, S. (author), Murthy, D.H.K. (author), Savenije, T.J. (author), Ahmad, H.A. (author), Nunney, T.S. (author), Janssens, S.D. (author), Haenen, K. (author), Nesládek, M. (author), Van der Zant, H.S.J. (author), Sudhölter, E.J.R. (author), De Smet, L.C.P.M. (author)A high-temperature procedure to hydrogenate diamond films using molecular hydrogen at atmospheric pressure was explored. Undoped and doped chemical vapour deposited (CVD) polycrystalline diamond films were treated according to our annealing method using a H2 gas flow down to ?50 ml/min (STP) at ?850?°C. The films were extensively evaluated by...journal article 2013
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Nasalevich, M.A. (author), Goesten, M.G. (author), Savenije, T.J. (author), Kapteijn, F. (author), Gascon, J. (author)NH2-MIL-125(Ti) has been post-synthetically functionalized with dye-like molecular fragments. The new material (methyl red-MIL- 125(Ti)) exhibits improved light absorption over a wide range of the visible spectrum, and shows enhanced photocatalytic oxidation activity under visible light illumination. The consequences of functionalization and the...journal article 2013
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- Savenije, T.J. (author), Kroeze, J.E. (author), Wienk, M.M. (author), Kroon, J.M. (author), Warman, J.M. (author) journal article 2004
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Huijser, A. (author), Savenije, T.J. (author), Shalav, A. (author), Siebbeles, L.D.A. (author)The exciton root-mean-square displacement (?D) in regioregular poly(3-hexylthiophene) (P3HT) deposited onto meso-tetrakis (n-methyl-4-pyridyl) porphyrin tetrachloride (H2TMPyP) has been determined from the photovoltaic response of a device based on these materials in a bilayer configuration. Excitons formed on illumination that reach the...journal article 2008
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Suchand Sandeep, C.S. (author), Ten Cate, S. (author), Schins, J.M. (author), Savenije, T.J. (author), Liu, Y. (author), Law, M. (author), Kinge, S. (author), Houtepen, A.J. (author), Siebbeles, L.D.A. (author)Carrier multiplication, the generation of multiple electron–hole pairs by a single photon, is of great interest for solar cells as it may enhance their photocurrent. This process has been shown to occur efficiently in colloidal quantum dots, however, harvesting of the generated multiple charges has proved difficult. Here we show that by tuning...journal article 2013
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Petrus, M.L. (author), Bouwer, R.K.M. (author), Lafont, U. (author), Murthy, D.H.K. (author), Kist, R.J.P. (author), Böhm, M.L. (author), Olivier, Y. (author), Savenije, T.J. (author), Siebbeles, L.D.A. (author), Greenham, N.C. (author), Dingemans, T.J. (author)Three conjugated triphenylamine-based poly(azomethine)s were prepared via well-known polycondensation chemistry using cheap and readily available starting materials and the results were contrasted with rrP3HT. Three functionalized diaminetriphenylamines (TPA(X), X ¼ –H, –OMe, –CN) were polymerized in a simple one-step process with 2,3...journal article 2013
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Wei, Z. (author), Guo, Dengyang (author), Thieme, J. (author), Katan, Claudine (author), Caselli, V.M. (author), Even, Jacky (author), Savenije, T.J. (author)Despite intense research into the optoelectronic properties of metal halide perovskites (MHPs), sub-bandgap absorption in MHPs remains largely unexplored. Here we recorded two-photon absorption spectra of MHPs using the time-resolved microwave conductivity technique. A two-step upward trend is observed in the two-photon absorption spectrum...journal article 2019
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Caselli, V.M. (author), Wei, Z. (author), Ackermans, M.M. (author), Hutter, E.M. (author), Ehrler, Bruno (author), Savenije, T.J. (author)To further understand the optoelectronic properties of metal halide perovskites, we investigate sub-bandgap absorption in methylammonium lead iodide (MAPbI3) films. Charge carrier dynamics are studied using time-resolved microwave conductivity measurements using sub-bandgap excitation. From changes in the decay dynamics as a function of...journal article 2020
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Jöbsis, Huygen J. (author), Caselli, V.M. (author), Askes, Sven H.C. (author), Garnett, Erik C. (author), Savenije, T.J. (author), Rabouw, Freddy T. (author), Hutter, Eline M. (author)Cs<sub>2</sub>AgBiBr<sub>6</sub> (CABB) has been proposed as a promising nontoxic alternative to lead halide perovskites. However, low charge carrier collection efficiencies remain an obstacle for the incorporation of this material in optoelectronic applications. In this work, we study the optoelectronic properties of CABB thin films using...journal article 2021
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Zhao, J. (author), Caselli, V.M. (author), Bus, M. (author), Boshuizen, B. (author), Savenije, T.J. (author)Wide-band-gap perovskites such as methylammonium lead bromide (MAPB) are promising materials for tandem solar cells because of their potentially high open-circuit voltage, which is yet still far below the maximum limit. The relatively short charge-carrier lifetimes deduced from time-resolved photoluminescence (TRPL) measurements seem in...journal article 2021
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Zhao, J. (author), Liu, X. (author), Wu, Zijin (author), Ibrahim, B. (author), Thieme, J. (author), Brocks, Geert (author), Tao, Shuxia (author), Bannenberg, L.J. (author), Savenije, T.J. (author)State-of-the-art triple cation, mixed halide perovskites are extensively studied in perovskite solar cells, showing very promising performance and stability. However, an in-depth fundamental understanding of how the phase behavior in Cs<sub>0.05</sub>FA<sub>0.85</sub>MA<sub>0.10</sub>Pb(I<sub>0.97</sub>Br<sub>0.03</sub>)<sub>3</sub> (CsMAFA)...journal article 2023
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Lin, Yuze (author), Li, Tao (author), Liu, Ye (author), Bahrami, Behzad (author), Guo, Dengyang (author), Fang, Yanjun (author), Shao, Yuchuan (author), Wang, Qi (author), Savenije, T.J. (author)A long photoluminescence decay lifetime has been regarded as a generic indication of long charge carrier recombination lifetime in semiconductors such as metal halide perovskites (MHPs), which have shown tremendous success in solar cells. Here, we report that MHP polycrystalline films with extrinsic metal ions have a very long charge...journal article 2021
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Colombi, G. (author), Boshuizen, B. (author), Chaykina, D. (author), Hsu, Y. (author), Schreuders, H. (author), Savenije, T.J. (author), Dam, B. (author)At ambient conditions, rare-earth oxyhydride thin films show reversible photochromism and photoconductivity, while their mechanism and relation are still unclear. In this work, this question is explored with in situ time-resolved measurements of both optical and transport properties of Gd-based oxyhydride thin films. It is found that p-type...journal article 2023
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van der Werf, Verena M. (author), Zhao, J. (author), Koning, Jim S. (author), Nespoli, J. (author), Thieme, J. (author), Bus, M. (author), Savenije, T.J. (author)Metal-halide perovskites deposited by wet-chemical deposition have demonstrated great potential for various electronic applications, including solar cells. A remaining question is how light-induced excess charges become distributed over such polycrystalline material. Here, we examine the local conductive properties of MAPbI<sub>3</sub> and...journal article 2023