Search Results - "Anton Koster, L. Jan"

N‐Type Organic Thermoelectrics of Donor–Acceptor Copolymers: Improved Power Factor by Molecular Tailoring of the Density of States by Liu, Jian, Ye, Gang, Zee, Bas van der, Dong, Jingjin, Qiu, Xinkai, Liu, Yuru, Portale, Giuseppe, Chiechi, Ryan C., Koster, L. Jan Anton

“…It is demonstrated that the n‐type thermoelectric performance of donor–acceptor (D–A) copolymers can be enhanced by a factor of >1000 by tailoring the density…”
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Pathways to a New Efficiency Regime for Organic Solar Cells by Koster, L. Jan Anton, Shaheen, Sean E., Hummelen, Jan C.

“…Three different theoretical approaches are presented to identify pathways to organic solar cells with power conversion efficiencies in excess of 20%. A…”
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N-type organic thermoelectrics: demonstration of ZT > 0.3 by Liu, Jian, van der Zee, Bas, Alessandri, Riccardo, Sami, Selim, Dong, Jingjin, Nugraha, Mohamad I., Barker, Alex J., Rousseva, Sylvia, Qiu, Li, Qiu, Xinkai, Klasen, Nathalie, Chiechi, Ryan C., Baran, Derya, Caironi, Mario, Anthopoulos, Thomas D., Portale, Giuseppe, Havenith, Remco W. A., Marrink, Siewert J., Hummelen, Jan C., Koster, L. Jan Anton

“…The ‘phonon-glass electron-crystal’ concept has triggered most of the progress that has been achieved in inorganic thermoelectrics in the past two decades…”
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The effect of three-dimensional morphology on the efficiency of hybrid polymer solar cells by Janssen, René A. J, Oosterhout, Stefan D, Wienk, Martijn M, van Bavel, Svetlana S, Thiedmann, Ralf, Jan Anton Koster, L, Gilot, Jan, Loos, Joachim, Schmidt, Volker

“…The efficiency of polymer solar cells critically depends on the intimacy of mixing of the donor and acceptor semiconductors used in these devices to create…”
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Quantifying Bimolecular Recombination Losses in Organic Bulk Heterojunction Solar Cells by Koster, L. Jan Anton, Kemerink, Martijn, Wienk, Martijn M., Maturová, Klará, Janssen, René A. J.

“…We present a new experimental technique that affords direct quantification of the fraction of charge carriers lost in poly(3‐hexylthiophene):fullerene solar…”
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Enhanced n‑Doping Efficiency of a Naphthalenediimide-Based Copolymer through Polar Side Chains for Organic Thermoelectrics by Kiefer, David, Giovannitti, Alexander, Sun, Hengda, Biskup, Till, Hofmann, Anna, Koopmans, Marten, Cendra, Camila, Weber, Stefan, Anton Koster, L. Jan, Olsson, Eva, Rivnay, Jonathan, Fabiano, Simone, McCulloch, Iain, Müller, Christian

“…N-doping of conjugated polymers either requires a high dopant fraction or yields a low electrical conductivity because of their poor compatibility with…”
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1,8-diiodooctane acts as a photo-acid in organic solar cells by Doumon, Nutifafa Y., Wang, Gongbao, Qiu, Xinkai, Minnaard, Adriaan J., Chiechi, Ryan C., Koster, L. Jan Anton

“…The last decade saw myriad new donor polymers, among which benzodithiophene-co-thienothiophene polymers are attractive due to their relatively high power…”
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Polaron hopping mediated by nuclear tunnelling in semiconducting polymers at high carrier density by Asadi, Kamal, Kronemeijer, Auke J., Cramer, Tobias, Jan Anton Koster, L., Blom, Paul W. M., de Leeuw, Dago M.

“…The transition rate for a single hop of a charge carrier in a semiconducting polymer is assumed to be thermally activated. As the temperature approaches…”
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Competition between recombination and extraction of free charges determines the fill factor of organic solar cells by Bartesaghi, Davide, Pérez, Irene del Carmen, Kniepert, Juliane, Roland, Steffen, Turbiez, Mathieu, Neher, Dieter, Koster, L. Jan Anton

“…Among the parameters that characterize a solar cell and define its power-conversion efficiency, the fill factor is the least well understood, making targeted…”
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Long-range exciton diffusion in molecular non-fullerene acceptors by Firdaus, Yuliar, Le Corre, Vincent M., Karuthedath, Safakath, Liu, Wenlan, Markina, Anastasia, Huang, Wentao, Chattopadhyay, Shirsopratim, Nahid, Masrur Morshed, Nugraha, Mohamad I., Lin, Yuanbao, Seitkhan, Akmaral, Basu, Aniruddha, Zhang, Weimin, McCulloch, Iain, Ade, Harald, Labram, John, Laquai, Frédéric, Andrienko, Denis, Koster, L. Jan Anton, Anthopoulos, Thomas D.

“…The short exciton diffusion length associated with most classical organic semiconductors used in organic photovoltaics (5-20 nm) imposes severe limits on the…”
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Enhancing Molecular n‐Type Doping of Donor–Acceptor Copolymers by Tailoring Side Chains by Liu, Jian, Qiu, Li, Alessandri, Riccardo, Qiu, Xinkai, Portale, Giuseppe, Dong, JingJin, Talsma, Wytse, Ye, Gang, Sengrian, Aprizal Akbar, Souza, Paulo C. T., Loi, Maria Antonietta, Chiechi, Ryan C., Marrink, Siewert J., Hummelen, Jan C., Koster, L. Jan Anton

“…In this contribution, for the first time, the molecular n‐doping of a donor–acceptor (D–A) copolymer achieving 200‐fold enhancement of electrical conductivity…”
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Recombination in Perovskite Solar Cells: Significance of Grain Boundaries, Interface Traps, and Defect Ions by Sherkar, Tejas S, Momblona, Cristina, Gil-Escrig, Lidón, Ávila, Jorge, Sessolo, Michele, Bolink, Henk J, Koster, L. Jan Anton

“…Trap-assisted recombination, despite being lower as compared with traditional inorganic solar cells, is still the dominant recombination mechanism in…”
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Efficient Perovskite Solar Cells over a Broad Temperature Window: The Role of the Charge Carrier Extraction by Shao, Shuyan, Liu, Jian, Fang, Hong‐Hua, Qiu, Li, ten Brink, Gert H., Hummelen, Jan C., Koster, L. Jan Anton, Loi, Maria Antonietta

“…The mechanism behind the temperature dependence of the device performance in hybrid perovskite solar cells (HPSCs) is investigated systematically. The power…”
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Carrier–Carrier Repulsion Limits the Conductivity of N‐Doped Organic Semiconductors by Yang, Xuwen, Ye, Gang, Liu, Jian, Chiechi, Ryan C., Koster, L. Jan Anton

“…Molecular doping is a key strategy to enhance the electrical conductivity of organic semiconductors. Typically, the electrical conductivity shows a maximum…”
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Amphipathic Side Chain of a Conjugated Polymer Optimizes Dopant Location toward Efficient N‐Type Organic Thermoelectrics by Liu, Jian, Ye, Gang, Potgieser, Hinderikus G. O., Koopmans, Marten, Sami, Selim, Nugraha, Mohamad Insan, Villalva, Diego Rosas, Sun, Hengda, Dong, Jingjin, Yang, Xuwen, Qiu, Xinkai, Yao, Chen, Portale, Giuseppe, Fabiano, Simone, Anthopoulos, Thomas D., Baran, Derya, Havenith, Remco W. A., Chiechi, Ryan C., Koster, L. Jan Anton

“…There is no molecular strategy for selectively increasing the Seebeck coefficient without reducing the electrical conductivity for organic thermoelectrics…”
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Improving Perovskite Solar Cells: Insights From a Validated Device Model by Sherkar, Tejas S., Momblona, Cristina, Gil‐Escrig, Lidón, Bolink, Henk J., Koster, L. Jan Anton

“…To improve the efficiency of existing perovskite solar cells (PSCs), a detailed understanding of the underlying device physics during their operation is…”
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Photostability of Fullerene and Non-Fullerene Polymer Solar Cells: The Role of the Acceptor by Doumon, Nutifafa Y, Dryzhov, Mikhail V, Houard, Félix V, Le Corre, Vincent M, Rahimi Chatri, Azadeh, Christodoulis, Panagiotis, Koster, L. Jan Anton

“…Recently, the advent of non-fullerene acceptors (NFAs) made it possible for organic solar cells (OSCs) to break the 10% efficiency barrier hardly attained by…”
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Charge Carrier Extraction in Organic Solar Cells Governed by Steady‐State Mobilities by Le Corre, Vincent M., Chatri, Azadeh Rahimi, Doumon, Nutifafa Y., Koster, L. Jan Anton

“…Charge transport in organic photovoltaic (OPV) devices is often characterized by steady‐state mobilities. However, the suitability of steady‐state mobilities…”
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A Conclusive View on Charge Generation, Recombination, and Extraction in As-Prepared and Annealed P3HT:PCBM Blends: Combined Experimental and Simulation Work by Kniepert, Juliane, Lange, Ilja, van der Kaap, Niels J., Koster, L. Jan Anton, Neher, Dieter

“…Time‐delayed collection field (TDCF) and bias‐amplified charge extraction (BACE) are applied to as‐prepared and annealed poly(3‐hexylthiophene):[6,6]‐phenyl…”
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High Gain Hybrid Graphene–Organic Semiconductor Phototransistors by Huisman, Everardus H, Shulga, Artem G, Zomer, Paul J, Tombros, Nikolaos, Bartesaghi, Davide, Bisri, Satria Zulkarnaen, Loi, Maria A, Koster, L. Jan Anton, van Wees, Bart J

“…Hybrid phototransistors of graphene and the organic semiconductor poly­(3-hexylthiophene-2,5-diyl) (P3HT) are presented. Two types of phototransistors are…”
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