Literature DB >> 17542638

Magnetic brightening of carbon nanotube photoluminescence through symmetry breaking.

Jonah Shaver1, Junichiro Kono, Oliver Portugall, Vojislav Krstić, Geert L J A Rikken, Yuhei Miyauchi, Shigeo Maruyama, Vasili Perebeinos.   

Abstract

We report that symmetry breaking by a magnetic field can drastically increase the photoluminescence quantum yield of single-walled carbon nanotubes, by as much as a factor of 6, at low temperatures. To explain this we have developed a theoretical model based on field-dependent exciton band structure and the interplay of Coulomb interactions and the Aharonov-Bohm effect. This conclusively explains our data as the first experimental observation of dark excitons 5-10 meV below the bright excitons.

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Year:  2007        PMID： 17542638     DOI： 10.1021/nl070260f

Source DB:  PubMed          Journal:  Nano Lett        ISSN： 1530-6984            Impact factor:   11.189


  5 in total

1.  Cross-polarized excitons in carbon nanotubes.

Authors:  Svetlana Kilina; Sergei Tretiak; Stephen K Doorn; Zhengtang Luo; Fotios Papadimitrakopoulos; Andrei Piryatinski; Avadh Saxena; Alan R Bishop
Journal:  Proc Natl Acad Sci U S A       Date:  2008-05-07       Impact factor: 11.205

2.  Wafer-scale monodomain films of spontaneously aligned single-walled carbon nanotubes.

Authors:  Xiaowei He; Weilu Gao; Lijuan Xie; Bo Li; Qi Zhang; Sidong Lei; John M Robinson; Erik H Hároz; Stephen K Doorn; Weipeng Wang; Robert Vajtai; Pulickel M Ajayan; W Wade Adams; Robert H Hauge; Junichiro Kono
Journal:  Nat Nanotechnol       Date:  2016-04-04       Impact factor: 39.213

3.  Manganese doping for enhanced magnetic brightening and circular polarization control of dark excitons in paramagnetic layered hybrid metal-halide perovskites.

Authors:  Timo Neumann; Sascha Feldmann; Philipp Moser; Alex Delhomme; Jonathan Zerhoch; Tim van de Goor; Shuli Wang; Mateusz Dyksik; Thomas Winkler; Jonathan J Finley; Paulina Plochocka; Martin S Brandt; Clément Faugeras; Andreas V Stier; Felix Deschler
Journal:  Nat Commun       Date:  2021-06-09       Impact factor: 14.919

4.  Relative ordering between bright and dark excitons in single-walled carbon nanotubes.

Authors:  Weihang Zhou; Daisuke Nakamura; Huaping Liu; Hiromichi Kataura; Shojiro Takeyama
Journal:  Sci Rep       Date:  2014-11-11       Impact factor: 4.379

5.  Probing Trions at Chemically Tailored Trapping Defects.

Authors:  Hyejin Kwon; Mijin Kim; Manuel Nutz; Nicolai F Hartmann; Vivien Perrin; Brendan Meany; Matthias S Hofmann; Charles W Clark; Han Htoon; Stephen K Doorn; Alexander Högele; YuHuang Wang
Journal:  ACS Cent Sci       Date:  2019-10-16       Impact factor: 14.553
  5 in total

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