Literature DB >> 19367928

Photogenerated free carrier dynamics in metal and semiconductor single-walled carbon nanotube films.

Matthew C Beard1, Jeffrey L Blackburn, Michael J Heben.   

Abstract

Time-resolved THz spectroscopy (TRTS) is employed to study the photogenerated charge-carrier dynamics in transparent films of single-walled carbon nanotubes (SWNTs). Two films were investigated: a film with 94% semiconducting-type tubes (s-SWNTs) and a film with only 7% s-SWNT and 93% metal-type tubes (m-SWNTs). We conclude that charge-carriers are generated with >60% yields at low light intensities in both films. Free-carriers are generated by a linear exciton dissociation process that occurs within -1 ps and is independent of excitation wavelength or tube type.

Entities:  

Year:  2008        PMID： 19367928     DOI： 10.1021/nl801913y

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


  7 in total

1.  Wavelength-dependent photoconductivity of single-walled carbon nanotube layers.

Authors:  Serguei Smirnov; Ilya V Anoshkin; Andrey Generalov; Dmitri V Lioubtchenko; Joachim Oberhammer
Journal:  RSC Adv       Date:  2019-05-10       Impact factor: 3.361

2.  High energetic excitons in carbon nanotubes directly probe charge-carriers.

Authors:  Giancarlo Soavi; Francesco Scotognella; Daniele Viola; Timo Hefner; Tobias Hertel; Giulio Cerullo; Guglielmo Lanzani
Journal:  Sci Rep       Date:  2015-05-11       Impact factor: 4.379

3.  Microwave conductivity of sorted CNT assemblies.

Authors:  John S Bulmer; Jon Martens; Lukasz Kurzepa; Tomasz Gizewski; M Egilmez; M G Blamire; Noorhana Yahya; Krzysztof K K Koziol
Journal:  Sci Rep       Date:  2014-01-21       Impact factor: 4.379

4.  Extreme Magneto-transport of Bulk Carbon Nanotubes in Sorted Electronic Concentrations and Aligned High Performance Fiber.

Authors:  John S Bulmer; Agnieszka Lekawa-Raus; Dwight G Rickel; Fedor F Balakirev; Krzysztof K Koziol
Journal:  Sci Rep       Date:  2017-09-22       Impact factor: 4.379

5.  Electrochemical Deposition of a Single-Crystalline Nanorod Polycyclic Aromatic Hydrocarbon Film with Efficient Charge and Exciton Transport.

Authors:  Cheng Zeng; Wenhao Zheng; Hong Xu; Silvio Osella; Wei Ma; Hai I Wang; Zijie Qiu; Ken-Ichi Otake; Wencai Ren; Huiming Cheng; Klaus Müllen; Mischa Bonn; Cheng Gu; Yuguang Ma
Journal:  Angew Chem Int Ed Engl       Date:  2022-02-03       Impact factor: 16.823

6.  Photoinduced spontaneous free-carrier generation in semiconducting single-walled carbon nanotubes.

Authors:  Jaehong Park; Obadiah G Reid; Jeffrey L Blackburn; Garry Rumbles
Journal:  Nat Commun       Date:  2015-11-04       Impact factor: 14.919

7.  Terahertz Excitonics in Carbon Nanotubes: Exciton Autoionization and Multiplication.

Authors:  Filchito Renee G Bagsican; Michael Wais; Natsumi Komatsu; Weilu Gao; Lincoln W Weber; Kazunori Serita; Hironaru Murakami; Karsten Held; Frank A Hegmann; Masayoshi Tonouchi; Junichiro Kono; Iwao Kawayama; Marco Battiato
Journal:  Nano Lett       Date:  2020-04-14       Impact factor: 11.189
  7 in total

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