Single-chain, helical wrapping of individualized, single-walled carbon nanotubes by ionic poly(aryleneethynylene)s: New compositions for photoinduced charge transfer reactions and photovoltaic applications

Pravas Deria, Mary G. Glesner, Youn K. Kang, One-Sun Lee, Louise Sinks, Sang Hoon Kim, Tae Hong Park, Dawn A. Bonnell, Jeffery G. Saven, Michael J. Therien

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Amphiphilic, linear, semi-conducting aryleneethynylene polymers such as poly[p-{2,5-bis(3-propoxysulfonicacidsodiumsalt)}phenylene]ethynylene (PPES) and poly[2,6-{1,5-bis(3-propoxysulfonicacidsodiumsalt)}napthylene]ethynylene (PNES) efficiently disperse single-walled carbon nanotubes (SWNTs) under ultra-sonication conditions into the aqueous phase. Vis-NIR absorption spectroscopy, atomic force microscopy (AFM), and transmission electron microscopy (TEM) demonstrate that these solubilized SWNTs are individualized. AFM and TEM data reveal that the interaction of PPES and PNES with SWNTs gives rise to a self-assembled superstructures in which a polymer monolayer helically wraps the nanotube surface; the observed PPES and PNES pitch lengths confirm structural predictions made via MD simulations. Following appropriate metatheses reactions, these self-assembled polymer-nanotube systems can be dissolved in organic solvents; electronic spectroscopy, transient absorption studies, as well as AFM and TEM data confirm that the PNES/PPES helical wrapping structure observed for individualized SWNTs in aqueous solution persists in nonaqueous media. These well-defined nanotube-semi-conducting polymer hybrid structures can be further engineered to serve as electron transport elements in excitonic solar cells and function as electron acceptors in electron transfer reactions involving photoactivatable redox centers anchored to the SWNT backbone.

Original languageEnglish
Title of host publicationACS National Meeting Book of Abstracts
Publication statusPublished - 2011
Externally publishedYes
Event241st ACS National Meeting and Exposition - Anaheim, CA, United States
Duration: 27 Mar 201131 Mar 2011

Other

Other241st ACS National Meeting and Exposition
CountryUnited States
CityAnaheim, CA
Period27/3/1131/3/11

Fingerprint

Single-walled carbon nanotubes (SWCN)
Charge transfer
Semiconducting polymers
Nanotubes
Atomic force microscopy
Chemical analysis
Transmission electron microscopy
Polymers
Sonication
Electrons
Absorption spectroscopy
Organic solvents
Monolayers
Solar cells
Spectroscopy

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

Single-chain, helical wrapping of individualized, single-walled carbon nanotubes by ionic poly(aryleneethynylene)s : New compositions for photoinduced charge transfer reactions and photovoltaic applications. / Deria, Pravas; Glesner, Mary G.; Kang, Youn K.; Lee, One-Sun; Sinks, Louise; Kim, Sang Hoon; Park, Tae Hong; Bonnell, Dawn A.; Saven, Jeffery G.; Therien, Michael J.

ACS National Meeting Book of Abstracts. 2011.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Deria, P, Glesner, MG, Kang, YK, Lee, O-S, Sinks, L, Kim, SH, Park, TH, Bonnell, DA, Saven, JG & Therien, MJ 2011, Single-chain, helical wrapping of individualized, single-walled carbon nanotubes by ionic poly(aryleneethynylene)s: New compositions for photoinduced charge transfer reactions and photovoltaic applications. in ACS National Meeting Book of Abstracts. 241st ACS National Meeting and Exposition, Anaheim, CA, United States, 27/3/11.
Deria, Pravas ; Glesner, Mary G. ; Kang, Youn K. ; Lee, One-Sun ; Sinks, Louise ; Kim, Sang Hoon ; Park, Tae Hong ; Bonnell, Dawn A. ; Saven, Jeffery G. ; Therien, Michael J. / Single-chain, helical wrapping of individualized, single-walled carbon nanotubes by ionic poly(aryleneethynylene)s : New compositions for photoinduced charge transfer reactions and photovoltaic applications. ACS National Meeting Book of Abstracts. 2011.
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AB - Amphiphilic, linear, semi-conducting aryleneethynylene polymers such as poly[p-{2,5-bis(3-propoxysulfonicacidsodiumsalt)}phenylene]ethynylene (PPES) and poly[2,6-{1,5-bis(3-propoxysulfonicacidsodiumsalt)}napthylene]ethynylene (PNES) efficiently disperse single-walled carbon nanotubes (SWNTs) under ultra-sonication conditions into the aqueous phase. Vis-NIR absorption spectroscopy, atomic force microscopy (AFM), and transmission electron microscopy (TEM) demonstrate that these solubilized SWNTs are individualized. AFM and TEM data reveal that the interaction of PPES and PNES with SWNTs gives rise to a self-assembled superstructures in which a polymer monolayer helically wraps the nanotube surface; the observed PPES and PNES pitch lengths confirm structural predictions made via MD simulations. Following appropriate metatheses reactions, these self-assembled polymer-nanotube systems can be dissolved in organic solvents; electronic spectroscopy, transient absorption studies, as well as AFM and TEM data confirm that the PNES/PPES helical wrapping structure observed for individualized SWNTs in aqueous solution persists in nonaqueous media. These well-defined nanotube-semi-conducting polymer hybrid structures can be further engineered to serve as electron transport elements in excitonic solar cells and function as electron acceptors in electron transfer reactions involving photoactivatable redox centers anchored to the SWNT backbone.

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