Search Results - "Richter, Johannes M."

Synthesis and Optical Properties of Lead-Free Cesium Tin Halide Perovskite Nanocrystals by Jellicoe, Tom C, Richter, Johannes M, Glass, Hugh F. J, Tabachnyk, Maxim, Brady, Ryan, Dutton, Siân E, Rao, Akshay, Friend, Richard H, Credgington, Dan, Greenham, Neil C, Böhm, Marcus L

“…Metal halide perovskite crystal structures have emerged as a class of optoelectronic materials, which combine the ease of solution processability with…”
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Ultrafast carrier thermalization in lead iodide perovskite probed with two-dimensional electronic spectroscopy by Richter, Johannes M., Branchi, Federico, Valduga de Almeida Camargo, Franco, Zhao, Baodan, Friend, Richard H., Cerullo, Giulio, Deschler, Felix

“…In band-like semiconductors, charge carriers form a thermal energy distribution rapidly after optical excitation. In hybrid perovskites, the cooling of such…”
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High-performance light-emitting diodes based on carbene-metal-amides by Di, Dawei, Romanov, Alexander S., Yang, Le, Richter, Johannes M., Rivett, Jasmine P. H., Jones, Saul, Thomas, Tudor H., Jalebi, Mojtaba Abdi, Friend, Richard H., Linnolahti, Mikko, Bochmann, Manfred, Credgington, Dan

“…Organic light-emitting diodes (OLEDs) promise highly efficient lighting and display technologies. We introduce a new class of linear donor-bridge-acceptor…”
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Photon recycling in lead iodide perovskite solar cells by Pazos-Outón, Luis M., Szumilo, Monika, Lamboll, Robin, Richter, Johannes M., Crespo-Quesada, Micaela, Abdi-Jalebi, Mojtaba, Beeson, Harry J., Vrućinić, Milan, Alsari, Mejd, Snaith, Henry J., Ehrler, Bruno, Friend, Richard H., Deschler, Felix

“…Lead-halide perovskites have emerged as high-performance photovoltaic materials. We mapped the propagation of photogenerated luminescence and charges from a…”
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Long-range exciton transport in conjugated polymer nanofibers prepared by seeded growth by Jin, Xu-Hui, Price, Michael B, Finnegan, John R, Boott, Charlotte E, Richter, Johannes M, Rao, Akshay, Menke, S Matthew, Friend, Richard H, Whittell, George R, Manners, Ian

“…Easily processed materials with the ability to transport excitons over length scales of more than 100 nanometers are highly desirable for a range of…”
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Enhancing photoluminescence yields in lead halide perovskites by photon recycling and light out-coupling by Richter, Johannes M., Abdi-Jalebi, Mojtaba, Sadhanala, Aditya, Tabachnyk, Maxim, Rivett, Jasmine P.H., Pazos-Outón, Luis M., Gödel, Karl C., Price, Michael, Deschler, Felix, Friend, Richard H.

“…In lead halide perovskite solar cells, there is at least one recycling event of electron–hole pair to photon to electron–hole pair at open circuit under solar…”
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Efficient Singlet Fission and Triplet-Pair Emission in a Family of Zethrene Diradicaloids by Lukman, Steven, Richter, Johannes M, Yang, Le, Hu, Pan, Wu, Jishan, Greenham, Neil C, Musser, Andrew J

“…Singlet fission offers the potential to overcome thermodynamic limits in solar cells by converting the energy of a single absorbed photon into two distinct…”
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Efficient Triplet Exciton Fusion in Molecularly Doped Polymer Light‐Emitting Diodes by Di, Dawei, Yang, Le, Richter, Johannes M., Meraldi, Lorenzo, Altamimi, Rashid M., Alyamani, Ahmed Y., Credgington, Dan, Musselman, Kevin P., MacManus‐Driscoll, Judith L., Friend, Richard H.

“…Solution‐processed polymer organic light‐emitting diodes (OLEDs) doped with triplet–triplet annihilation (TTA)‐upconversion molecules, including…”
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Short contacts between chains enhancing luminescence quantum yields and carrier mobilities in conjugated copolymers by Thomas, Tudor H., Harkin, David J., Gillett, Alexander J., Lemaur, Vincent, Nikolka, Mark, Sadhanala, Aditya, Richter, Johannes M., Armitage, John, Chen, Hu, McCulloch, Iain, Menke, S. Matthew, Olivier, Yoann, Beljonne, David, Sirringhaus, Henning

“…Efficient conjugated polymer optoelectronic devices benefit from concomitantly high luminescence and high charge carrier mobility. This is difficult to…”
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Formation of Long-Lived Color Centers for Broadband Visible Light Emission in Low-Dimensional Layered Perovskites by Booker, Edward P, Thomas, Tudor H, Quarti, Claudio, Stanton, Michael R, Dashwood, Cameron D, Gillett, Alexander J, Richter, Johannes M, Pearson, Andrew J, Davis, Nathaniel J. L. K, Sirringhaus, Henning, Price, Michael B, Greenham, Neil C, Beljonne, David, Dutton, Siân E, Deschler, Felix

“…We investigate the origin of the broadband visible emission in layered hybrid lead-halide perovskites and its connection with structural and photophysical…”
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Charge extraction via graded doping of hole transport layers gives highly luminescent and stable metal halide perovskite devices by Abdi-Jalebi, Mojtaba, Ibrahim Dar, M, Senanayak, Satyaprasad P, Sadhanala, Aditya, Andaji-Garmaroudi, Zahra, Pazos-Outón, Luis M, Richter, Johannes M, Pearson, Andrew J, Sirringhaus, Henning, Grätzel, Michael, Friend, Richard H

“…One source of instability in perovskite solar cells (PSCs) is interfacial defects, particularly those that exist between the perovskite and the hole transport…”
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Photon Reabsorption in Mixed CsPbCl3:CsPbI3 Perovskite Nanocrystal Films for Light-Emitting Diodes by Davis, Nathaniel J. L. K, de la Peña, Francisco J, Tabachnyk, Maxim, Richter, Johannes M, Lamboll, Robin D, Booker, Edward P, Wisnivesky Rocca Rivarola, Florencia, Griffiths, James T, Ducati, Caterina, Menke, S. Matthew, Deschler, Felix, Greenham, Neil C

“…Cesium lead halide nanocrystals, CsPbX3 (X = Cl, Br, I), exhibit photoluminescence quantum efficiencies approaching 100% without the core–shell structures…”
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High-efficiency perovskite–polymer bulk heterostructure light-emitting diodes by Zhao, Baodan, Bai, Sai, Kim, Vincent, Lamboll, Robin, Shivanna, Ravichandran, Auras, Florian, Richter, Johannes M., Yang, Le, Dai, Linjie, Alsari, Mejd, She, Xiao-Jian, Liang, Lusheng, Zhang, Jiangbin, Lilliu, Samuele, Gao, Peng, Snaith, Henry J., Wang, Jianpu, Greenham, Neil C., Friend, Richard H., Di, Dawei

“…Perovskite-based optoelectronic devices are gaining much attention owing to their remarkable performance and low processing cost, particularly for solar cells…”
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Maximizing and stabilizing luminescence from halide perovskites with potassium passivation by Abdi-Jalebi, Mojtaba, Andaji-Garmaroudi, Zahra, Cacovich, Stefania, Stavrakas, Camille, Philippe, Bertrand, Richter, Johannes M., Alsari, Mejd, Booker, Edward P., Hutter, Eline M., Pearson, Andrew J., Lilliu, Samuele, Savenije, Tom J., Rensmo, Håkan, Divitini, Giorgio, Ducati, Caterina, Friend, Richard H., Stranks, Samuel D.

“…Modifying the surfaces and grain boundaries of perovskites with passivating potassium halide layers can mitigate non-radiative losses and photoinduced ion…”
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Ultrafast carrier interactions in metal-halide perovskites probed with two-dimensional electronic spectroscopy by Johannes, M. Richter, Branchi, Federico, Franco, V. A. Camargo, Nagahara, Tetsuhiko, Zhao, Baodan, Richard, H. Friend, Cerullo, Giulio, Deschler, Felix

“…We use 2D electronic spectroscopy with sub-10-fs resolution to probe carrier-carrier scattering in perovskites. We report excitation-density dependent…”
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Direct Bandgap Behavior in Rashba‐Type Metal Halide Perovskites by Richter, Johannes M., Chen, Kai, Sadhanala, Aditya, Butkus, Justinas, Rivett, Jasmine P. H., Friend, Richard H., Monserrat, Bartomeu, Hodgkiss, Justin M., Deschler, Felix

“…The generation and recombination of charge carriers in semiconductors through photons controls photovoltaic and light‐emitting diode operation. Understanding…”
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Dark Subgap States in Metal-Halide Perovskites Revealed by Coherent Multidimensional Spectroscopy by Camargo, Franco V. A, Nagahara, Tetsuhiko, Feldmann, Sascha, Richter, Johannes M, Friend, Richard H, Cerullo, Giulio, Deschler, Felix

“…Metal-halide perovskites show excellent properties for photovoltaic and optoelectronic applications, with power conversion efficiencies of solar cell and LEDs…”
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Exciton–Phonon Interactions Govern Charge-Transfer-State Dynamics in CdSe/CdTe Two-Dimensional Colloidal Heterostructures by Pandya, Raj, Chen, Richard Y. S, Cheminal, Alexandre, Dufour, Marion, Richter, Johannes M, Thomas, Tudor H, Ahmed, Shahab, Sadhanala, Aditya, Booker, Edward P, Divitini, Giorgio, Deschler, Felix, Greenham, Neil C, Ithurria, Sandrine, Rao, Akshay

“…CdSe/CdTe core–crown type-II nanoplatelet heterostructures are two-dimensional semiconductors that have attracted interest for use in light-emitting…”
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Chain Coupling and Luminescence in High-Mobility, Low-Disorder Conjugated Polymers by Thomas, Tudor H, Rivett, Jasmine P. H, Gu, Qifei, Harkin, David J, Richter, Johannes M, Sadhanala, Aditya, Yong, Chaw Keong, Schott, Sam, Broch, Katharina, Armitage, John, Gillett, Alexander J, Menke, S. Matthew, Rao, Akshay, Credgington, Dan, Sirringhaus, Henning

“…Optoelectronic devices based on conjugated polymers often rely on multilayer device architectures, as it is difficult to design all the different functional…”
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High Quality Hybrid Perovskite Semiconductor Thin Films with Remarkably Enhanced Luminescence and Defect Suppression via Quaternary Alkyl Ammonium Salt Based Treatment by Naphade, Rounak, Zhao, Baodan, Richter, Johannes M., Booker, Edward, Krishnamurthy, Shrreya, Friend, Richard H., Sadhanala, Aditya, Ogale, Satishchandra

“…Significant enhancement in the luminescence and superior photophysical properties of CH3NH3PbBr3 thin films prepared via simple single step spin coating…”
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