Optical Band Gap Alteration of Graphene Oxide via Ozone Treatment

Autor: Md Tanvir Hasan, Brian J. Senger, Conor Ryan, Marais Culp, Roberto Gonzalez-Rodriguez, Jeffery L. Coffer, Anton V. Naumov

Publikováno v: Scientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)

Abstract Graphene oxide (GO) is a graphene derivative that emits fluorescence, which makes GO an attractive material for optoelectronics and biotechnology. In this work, we utilize ozone treatment to controllably tune the band gap of GO, which can si

Externí odkaz: https://doaj.org/article/d77054f69e734004b49f90e3e677e0a6

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Extremely Efficient Photocurrent Generation in Carbon Nanotube Photodiodes Enabled by a Strong Axial Electric Field

Autor: Vasili Perebeinos, Mitchell J. Senger, Andrea Bertoni, Daniel R. McCulley, Ethan D. Minot

Publikováno v: Nano letters (Online) 20 (2020): 433–440. doi:10.1021/acs.nanolett.9b04151
info:cnr-pdr/source/autori:McCulley D.R.; Senger M.J.; Bertoni A.; Perebeinos V.; Minot E.D./titolo:Extremely Efficient Photocurrent Generation in Carbon Nanotube Photodiodes Enabled by a Strong Axial Electric Field/doi:10.1021%2Facs.nanolett.9b04151/rivista:Nano letters (Online)/anno:2020/pagina_da:433/pagina_a:440/intervallo_pagine:433–440/volume:20

Carbon nanotube (CNT) photodiodes have the potential to convert light into electrical current with high efficiency. However, previous experiments have revealed the photocurrent quantum yield (PCQY) to be well below 100%. In this work, we show that th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2d0674fd3ebe8141b0bac4091d5309f0
https://pubmed.ncbi.nlm.nih.gov/31847521

Band-Gap-Dependent Electronic Compressibility of Carbon Nanotubes in the Wigner Crystal Regime

Autor: Daniel R. McCulley, Han Fu, Mitchell J. Senger, Vikram Deshpande, Ethan D. Minot, Neda Lotfizadeh, Brian Skinner

Publikováno v: Physical review letters. 123(19)

Electronic compressibility, the second derivative of ground state energy with respect to total electron number, is a measurable quantity that reveals the interaction strength of a system and can be used to characterize the orderly crystalline lattice

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::baca960111ec0d1a66c8c5f60b4e5c9b
https://pubmed.ncbi.nlm.nih.gov/31765201

Modifying optical properties of reduced/graphene oxide with controlled ozone and thermal treatment in aqueous suspensions

Autor: Hung Doan, Anton V. Naumov, Tanvir Hasan, Conor Ryan, Price Mulford, Zygmunt Gryczynski, Brian J Senger

Publikováno v: Nanotechnology. 28(6)

Graphene possesses a number of advantageous properties, however, does not exhibit optical emission, which limits its use in optoelectronics. Unlike graphene, its functional derivative, graphene oxide (GO) exhibits fluorescence emission throughout the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2d1d78710fe7a1cbdf1b729431c10e8e
https://pubmed.ncbi.nlm.nih.gov/28050974