Zobrazeno 1 - 10
of 1 631
pro vyhledávání: '"Richard H Friend"'
Autor:
Kyung Mun Yeom, Changsoon Cho, Eui Hyuk Jung, Geunjin Kim, Chan Su Moon, So Yeon Park, Su Hyun Kim, Mun Young Woo, Mohammed Nabaz Taher Khayyat, Wanhee Lee, Nam Joong Jeon, Miguel Anaya, Samuel D. Stranks, Richard H. Friend, Neil C. Greenham, Jun Hong Noh
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-9 (2024)
Abstract Efficient photovoltaic devices must be efficient light emitters to reach the thermodynamic efficiency limit. Here, we present a promising prospect of perovskite photovoltaics as bright emitters by harnessing the significant benefits of photo
Externí odkaz:
https://doaj.org/article/cbfcf6c22ff34b919b88ba4f0e0cc3b8
Autor:
Petri Murto, Rituparno Chowdhury, Sebastian Gorgon, Erjuan Guo, Weixuan Zeng, Biwen Li, Yuqi Sun, Haydn Francis, Richard H. Friend, Hugo Bronstein
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-10 (2023)
Abstract Neutral π-radicals have potential for use as light emitters in optoelectronic devices due to the absence of energetically low-lying non-emissive states. Here, we report a defect-free synthetic methodology via mesityl substitution at the par
Externí odkaz:
https://doaj.org/article/0c941f239edb468ca7375dcf1ae30153
Autor:
James C Blakesley, Ruy S Bonilla, Marina Freitag, Alex M Ganose, Nicola Gasparini, Pascal Kaienburg, George Koutsourakis, Jonathan D Major, Jenny Nelson, Nakita K Noel, Bart Roose, Jae Sung Yun, Simon Aliwell, Pietro P Altermatt, Tayebeh Ameri, Virgil Andrei, Ardalan Armin, Diego Bagnis, Jenny Baker, Hamish Beath, Mathieu Bellanger, Philippe Berrouard, Jochen Blumberger, Stuart A Boden, Hugo Bronstein, Matthew J Carnie, Chris Case, Fernando A Castro, Yi-Ming Chang, Elmer Chao, Tracey M Clarke, Graeme Cooke, Pablo Docampo, Ken Durose, James R Durrant, Marina R Filip, Richard H Friend, Jarvist M Frost, Elizabeth A Gibson, Alexander J Gillett, Pooja Goddard, Severin N Habisreutinger, Martin Heeney, Arthur D Hendsbee, Louise C Hirst, M Saiful Islam, K D G Imalka Jayawardena, Michael B Johnston, Matthias Kauer, Jeff Kettle, Ji-Seon Kim, Dan Lamb, David Lidzey, Jihoo Lim, Roderick MacKenzie, Nigel Mason, Iain McCulloch, Keith P McKenna, Sebastian B Meier, Paul Meredith, Graham Morse, John D Murphy, Chris Nicklin, Paloma Ortega-Arriaga, Thomas Osterberg, Jay B Patel, Anthony Peaker, Moritz Riede, Martyn Rush, James W Ryan, David O Scanlon, Peter J Skabara, Franky So, Henry J Snaith, Ludmilla Steier, Jarla Thiesbrummel, Alessandro Troisi, Craig Underwood, Karsten Walzer, Trystan Watson, J Michael Walls, Aron Walsh, Lucy D Whalley, Benedict Winchester, Samuel D Stranks, Robert L Z Hoye
Publikováno v:
JPhys Energy, Vol 6, Iss 4, p 041501 (2024)
Photovoltaics (PVs) are a critical technology for curbing growing levels of anthropogenic greenhouse gas emissions, and meeting increases in future demand for low-carbon electricity. In order to fulfill ambitions for net-zero carbon dioxide equivalen
Externí odkaz:
https://doaj.org/article/621196ac30394ef8b9470f767032dee3
Autor:
Kyeong-Yoon Baek, Woocheol Lee, Jonghoon Lee, Jaeyoung Kim, Heebeom Ahn, Jae Il Kim, Junwoo Kim, Hyungbin Lim, Jiwon Shin, Yoon-Joo Ko, Hyeon-Dong Lee, Richard H. Friend, Tae-Woo Lee, Jeongjae Lee, Keehoon Kang, Takhee Lee
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-11 (2022)
While emission and stability of metal–halide perovskites can be enhanced through heterostructural encapsulation, a controlled synthesis route to such structures is not trivial to realize. Here, the authors design a mechanochemistry-driven protocol
Externí odkaz:
https://doaj.org/article/a8ba983adf75490dacb7942a10beba8c
Autor:
Yaxiao Lian, Dongchen Lan, Shiyu Xing, Bingbing Guo, Zhixiang Ren, Runchen Lai, Chen Zou, Baodan Zhao, Richard H. Friend, Dawei Di
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-10 (2022)
Light emission from 17 types of LEDs is observed at record-low voltages of 36–60% of the bandgaps, which cannot be explained by earlier theories. The electroluminescence-voltage curves reveal a unified mechanism for ultralow-voltage LED operation.
Externí odkaz:
https://doaj.org/article/3cfd28acf50e4f77b2cea19afa8941bb
Autor:
Feng Li, Alexander J. Gillett, Qinying Gu, Junshuai Ding, Zhangwu Chen, Timothy J. H. Hele, William K. Myers, Richard H. Friend, Emrys W. Evans
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-9 (2022)
Organic light-emitting diodes must be engineered to circumvent efficiency limits imposed by the ratio of triplet to singlet exciton formation, following electron-hole capture. Here, authors unlock energy transfer channels between singlet, triplet and
Externí odkaz:
https://doaj.org/article/d55aa454f37a4b609f3d7daf61f8dd96
Autor:
Neha Arora, Alessandro Greco, Simone Meloni, Alexander Hinderhofer, Alessandro Mattoni, Ursula Rothlisberger, Jan Hagenlocher, Claudia Caddeo, Shaik M. Zakeeruddin, Frank Schreiber, Michael Graetzel, Richard H. Friend, M. Ibrahim Dar
Publikováno v:
Communications Materials, Vol 3, Iss 1, Pp 1-8 (2022)
Metal halide to perovskite phase conversion is a facile approach for synthesizing high-quality perovskite semiconductors for optoelectronic applications. Here, these reactions are investigated at the nanoscale via in-situ x-ray scattering, revealing
Externí odkaz:
https://doaj.org/article/d96754d288c14e90817ee5b52a6bb7cb
Autor:
Raj Pandya, Richard Y. S. Chen, Qifei Gu, Jooyoung Sung, Christoph Schnedermann, Oluwafemi S. Ojambati, Rohit Chikkaraddy, Jeffrey Gorman, Gianni Jacucci, Olimpia D. Onelli, Tom Willhammar, Duncan N. Johnstone, Sean M. Collins, Paul A. Midgley, Florian Auras, Tomi Baikie, Rahul Jayaprakash, Fabrice Mathevet, Richard Soucek, Matthew Du, Antonios M. Alvertis, Arjun Ashoka, Silvia Vignolini, David G. Lidzey, Jeremy J. Baumberg, Richard H. Friend, Thierry Barisien, Laurent Legrand, Alex W. Chin, Joel Yuen-Zhou, Semion K. Saikin, Philipp Kukura, Andrew J. Musser, Akshay Rao
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-11 (2021)
Exciton-polaritons are typically formed in organic systems when the molecules are confined between metallic or dielectric mirrors. Here, the authors reveal that interactions between excitons and moderately confined photonic states within the bare org
Externí odkaz:
https://doaj.org/article/3313549553884d36aa1ce52d4335a1ac
Autor:
Alexander J. Gillett, Claire Tonnelé, Giacomo Londi, Gaetano Ricci, Manon Catherin, Darcy M. L. Unson, David Casanova, Frédéric Castet, Yoann Olivier, Weimin M. Chen, Elena Zaborova, Emrys W. Evans, Bluebell H. Drummond, Patrick J. Conaghan, Lin-Song Cui, Neil C. Greenham, Yuttapoom Puttisong, Frédéric Fages, David Beljonne, Richard H. Friend
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-10 (2021)
A low singlet-triplet energy gap, necessary for delayed fluorescence organic semiconductors, results in a small radiative rate that limits performance in OLEDs. Here, the authors show that it is possible to reconcile these conflicting requirements in
Externí odkaz:
https://doaj.org/article/bd8a83606fc241bd8c37e389dfb950d6
Singlet exciton fission in a modified acene with improved stability and high photoluminescence yield
Autor:
Peter J. Budden, Leah R. Weiss, Matthias Müller, Naitik A. Panjwani, Simon Dowland, Jesse R. Allardice, Michael Ganschow, Jan Freudenberg, Jan Behrends, Uwe H. F. Bunz, Richard H. Friend
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-8 (2021)
Designing optimised molecules for singlet fission is crucial to improve the efficiency of solar cells beyond its theoretical limit. Here, the authors investigate pentacene derivative TTBP, which exhibits high stability and luminescence yield, and fin
Externí odkaz:
https://doaj.org/article/ede00cbfaee440318739727a5e4ba894