Microcavity-like exciton-polaritons can be the primary photoexcitation in bare organic semiconductors

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

Photogeneration of Spin Quintet Triplet–Triplet Excitations in DNA-Assembled Pentacene Stacks

Autor: Sarah R. E. Orsborne, Jeffrey Gorman, Leah R. Weiss, Akshay Sridhar, Naitik A. Panjwani, Giorgio Divitini, Peter Budden, David Palecek, Seán T. J. Ryan, Akshay Rao, Rosana Collepardo-Guevara, Afaf H. El-Sagheer, Tom Brown, Jan Behrends, Richard H. Friend, Florian Auras

Singlet fission (SF), an exciton-doubling process observed in certain molecular semiconductors where two triplet excitons are generated from one singlet exciton, requires correctly tuned intermolecular coupling to allow separation of the two triplets

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::740ddd89ee279e2252bcd44179952ceb
https://doi.org/10.1021/jacs.2c13743

Microcavity-like exciton-polaritons can be the primary photoexcitation in bare organic semiconductors

Autor: Thierry Barisien, Tomi Baikie, Joel Yuen-Zhou, Olimpia D. Onelli, Gianni Jacucci, Christoph Schnedermann, David G. Lidzey, Jooyoung Sung, Akshay Rao, Florian Auras, Matthew Du, Jeffrey Gorman, Qifei Gu, Paul A. Midgley, Duncan N. Johnstone, Sean M. Collins, Richard Chen, Jeremy J. Baumberg, Alex W. Chin, Rohit Chikkaraddy, Fabrice Mathevet, Richard Soucek, Oluwafemi Stephen Ojambati, Philipp Kukura, Raj Pandya, Andrew J. Musser, Tom Willhammar, Rahul Jayaprakash, Laurent Legrand, Semion K. Saikin, Richard H. Friend, Antonios M. Alvertis, Arjun Ashoka, Silvia Vignolini

Publikováno v: Nature Communications
Nature Communications, Nature Publishing Group, 2021, 12 (1), ⟨10.1038/s41467-021-26617-w⟩
Nature Communications, Vol 12, Iss 1, Pp 1-11 (2021)

Strong-coupling between excitons and confined photonic modes can lead to the formation of new quasi-particles termed exciton-polaritons which can display a range of interesting properties such as super-fluidity, ultrafast transport and Bose-Einstein

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eaeb7d5bb59d368fec36a69135e089f0
https://doi.org/10.1038/s41467-021-26617-w

Perylene-Based Covalent Organic Frameworks for Acid Vapor Sensing

Autor: Sarah Re Orsborne, Richard H. Friend, Laura Ascherl, Derya Bessinger, Emrys W. Evans, Thomas Bein, Florian Auras, Jeffrey Gorman

Publikováno v: Journal of the American Chemical Society

Traditionally, the properties and functions of covalent organic frameworks (COFs) are defined by their constituting building blocks, while the chemical bonds that connect the individual subunits have not attracted much attention as functional compone

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ad2d069df1fc143f98c93b0ea61375a9
https://doi.org/10.1021/jacs.9b08079

Inter-ligand energy transfer in dye chromophores attached to high bandgap SiO

Autor: Michael B, Price, Andrew, Paton, Jeffrey, Gorman, Isabella, Wagner, Geoffry, Laufersky, Kai, Chen, Richard H, Friend, Timothy W, Schmidt, Justin M, Hodgkiss, Nathaniel J L K, Davis

Publikováno v: Chemical communications (Cambridge, England). 55(60)

Artificial light harvesters require ordered arrangement of chromophores. We covalently attach three organic chromophore ligands to silicon dioxide nanoparticles. This allows us to study inter-ligand energy transfer when attached to SiO2 nanoparticles

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::244c842dcac74560c719514e007c91cf
https://pubmed.ncbi.nlm.nih.gov/31089614