Search Results - "Koster, L."

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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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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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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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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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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N‐Type Organic Thermoelectrics: Improved Power Factor by Tailoring Host–Dopant Miscibility by Liu, Jian, Qiu, Li, Portale, Giuseppe, Koopmans, Marten, ten Brink, Gert, Hummelen, Jan C., Koster, L. Jan Anton

“…In this contribution, for the first time, the polarity of fullerene derivatives is tailored to enhance the miscibility between the host and dopant molecules. A…”
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Trap-assisted recombination in disordered organic semiconductors by Kuik, M, Koster, L J A, Wetzelaer, G A H, Blom, P W M

“…The trap-assisted recombination of electrons and holes in organic semiconductors is investigated. The extracted capture coefficients of the trap-assisted…”
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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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Device Physics of Polymer:Fullerene Bulk Heterojunction Solar Cells by Blom, P. W. M., Mihailetchi, V. D., Koster, L. J. A., Markov, D. E.

“…Plastic solar cells bear the potential for large‐scale power generation based on materials that provide the possibility of flexible, lightweight, inexpensive,…”
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A New Figure of Merit for Organic Solar Cells with Transport-limited Photocurrents by Neher, Dieter, Kniepert, Juliane, Elimelech, Arik, Koster, L. Jan Anton

“…Compared to their inorganic counterparts, organic semiconductors suffer from relatively low charge carrier mobilities. Therefore, expressions derived for…”
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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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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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Highly Reproducible Sn‐Based Hybrid Perovskite Solar Cells with 9% Efficiency by Shao, Shuyan, Liu, Jian, Portale, Giuseppe, Fang, Hong‐Hua, Blake, Graeme R., ten Brink, Gert H., Koster, L. Jan Anton, Loi, Maria Antonietta

“…The low power conversion efficiency (PCE) of tin‐based hybrid perovskite solar cells (HPSCs) is mainly attributed to the high background carrier density due to…”
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Revealing Charge Carrier Mobility and Defect Densities in Metal Halide Perovskites via Space-Charge-Limited Current Measurements by Le Corre, Vincent M, Duijnstee, Elisabeth A, El Tambouli, Omar, Ball, James M, Snaith, Henry J, Lim, Jongchul, Koster, L. Jan Anton

“…Space-charge-limited current (SCLC) measurements have been widely used to study the charge carrier mobility and trap density in semiconductors. However, their…”
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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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Photocurrent generation in polymer-fullerene bulk heterojunctions by MIHAILETCHI, V. D, KOSTER, L. J. A, HUMMELEN, J. C, BLOM, P. W. M

“…The photocurrent in conjugated polymer-fullerene blends is dominated by the dissociation efficiency of bound electron-hole pairs at the donor-acceptor…”
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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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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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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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