2024-03-29T05:06:29Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/1763272022-10-03T09:18:32Zcom_10261_35com_10261_5col_10261_288
A tool box to ascertain the nature of doping and photoresponse in single-walled carbon nanotubes
Santidrián, Ana
González Domínguez, José Miguel
Díez-Cabanes, Valentín
Hernández-Ferrer, Javier
Maser, Wolfgang K.
Benito, Ana M.
Ansón Casaos, Alejandro
Cornil, Jérôme
Ros, Tatiana da
Kalbáč, Martin
European Commission
Ministry of Education, Youth and Sports (Czech Republic)
Ministerio de Economía y Competitividad (España)
Gobierno de Aragón
National Fund for Scientific Research (Belgium)
Ministerio de Economía, Industria y Competitividad (España)
Consejo Superior de Investigaciones Científicas (España)
Santidrián, Ana [0000-0002-6964-4096]
Gónzalez Domínguez, Jose Miguel [0000-0002-0701-7695]
Hernández-Ferrer, Javier [0000-0002-6586-6935]
Maser, Wolfgang K. [0000-0003-4253-0758]
Benito, Ana M. [0000-0002-8654-7386]
Ansón Casaos, Alejandro [0000-0002-3134-8566]
Cornil, Jérôme [0000-0002-5479-4227]
Ros, Tatiana da [0000-0003-1932-1560]
Kalbáč, Martin [0000-0001-9574-4368]
Raman Spectroscopy
Electrochemistry
Carbon nanotubes
Chemical functionalization
Diazonium
Doping
Espectroscopía Raman
Electroquímica
Nanotubos de carbono
Funcionalización química
Diazonio
Dopaje
6 Figuras. 3 Tablas.
The effect of doping on the electronic properties in bulk single-walled carbon nanotube (SWCNT) samples is studied for the first time using a new in situ Raman spectroelectrochemical method, and further verified by DFT calculations and photoresponse. We use p-/n-doped SWCNTs prepared by diazonium reactions as a versatile chemical strategy to control the SWCNT behavior. The measured and calculated data testify an acceptor effect of 4-aminobenzenesulfonic acid (p-doping), and a donor effect (n-doping) in the case of benzyl alcohol. In addition, pristine and covalently functionalized SWCNTs were used for the preparation of photoactive film electrodes. The photocathodic current in the photoelectrochemical cell is consistently modulated by the doping group. These results validate the in situ Raman spectroelectrochemistry as a unique tool box for predicting the electronic properties of functionalized SWCNTs in the form of thin films and their operational functionality in thin film devices for future optoelectronic applications.
2019-02-18T14:33:23Z
2019-02-18T14:33:23Z
2019-01-23
artículo
Physical Chemistry Chemical Physics 21(7): 4063-4071 (2019)
1463-9076
http://hdl.handle.net/10261/176327
10.1039/c8cp06961a
1463-9084
http://dx.doi.org/10.13039/501100010067
http://dx.doi.org/10.13039/501100000780
http://dx.doi.org/10.13039/501100003329
http://dx.doi.org/10.13039/501100010198
http://dx.doi.org/10.13039/501100003339
eng
Publisher's version
http://dx.doi.org/10.1039/c8cp06961a
Sí
info:eu-repo/grantAgreement/EC/FP7/290023
info:eu-repo/grantAgreement/EC/H2020/734834
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/ENE2016-79282-C5-1-R
info:eu-repo/grantAgreement/EC/H2020/642742
info:eu-repo/grantAgreement/EC/H2020/642196
https://creativecommons.org/licenses/by-nc/3.0/
openAccess
Royal Society of Chemistry (UK)