Structural characterization of phenyl-cored thiophene dendrimers for organic photovoltaics

Jodie T. Wasacz, Nikos Kopidakis, William J. Mitchell, Gary Rumbles, Sean E. Shaheen, Kimberly A O Pacheco

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

Abstract

Organic semiconductors have emerged as a possible approach allowing for large-scale, low-cost solar cell production of with sufficient power conversion efficiency to be commercially viable. Pi-conjugated dendrimers have been used in bulk heterojunction photovoltaic devices as a substitute for the conjugated polymer.[1] Dendrimers can be driven by strong pi-pi interactions yielding highly ordered film morphologies. Such molecular ordering is important for the efficient operation of polymer-fullerene blend devices. Here we characterize a series of previously synthesized dendrimers based on a phenyl-core with thiophene dendrons. XRD, AFM, and FTIR were used to provide information on the structural features of the newly synthesized dendrimers. Correlations between the number and length of the dendrimer arms and the degree of ordering of thin films are evident from the data. Such information elucidates the structure-property relationship of these materials and provides guidance in designing new generations of dendrimers for potential photovoltaic device development.

Original languageEnglish
Title of host publicationACS National Meeting Book of Abstracts
Publication statusPublished - 2007
Event233rd ACS National Meeting - Chicago, IL, United States
Duration: Mar 25 2007Mar 29 2007

Other

Other233rd ACS National Meeting
CountryUnited States
CityChicago, IL
Period3/25/073/29/07

Fingerprint

Dendrimers
Thiophenes
Fullerenes
Semiconducting organic compounds
Conjugated polymers
Conversion efficiency
Heterojunctions
Solar cells
Polymers
Thin films

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Wasacz, J. T., Kopidakis, N., Mitchell, W. J., Rumbles, G., Shaheen, S. E., & Pacheco, K. A. O. (2007). Structural characterization of phenyl-cored thiophene dendrimers for organic photovoltaics. In ACS National Meeting Book of Abstracts

Structural characterization of phenyl-cored thiophene dendrimers for organic photovoltaics. / Wasacz, Jodie T.; Kopidakis, Nikos; Mitchell, William J.; Rumbles, Gary; Shaheen, Sean E.; Pacheco, Kimberly A O.

ACS National Meeting Book of Abstracts. 2007.

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

Wasacz, JT, Kopidakis, N, Mitchell, WJ, Rumbles, G, Shaheen, SE & Pacheco, KAO 2007, Structural characterization of phenyl-cored thiophene dendrimers for organic photovoltaics. in ACS National Meeting Book of Abstracts. 233rd ACS National Meeting, Chicago, IL, United States, 3/25/07.
Wasacz JT, Kopidakis N, Mitchell WJ, Rumbles G, Shaheen SE, Pacheco KAO. Structural characterization of phenyl-cored thiophene dendrimers for organic photovoltaics. In ACS National Meeting Book of Abstracts. 2007
Wasacz, Jodie T. ; Kopidakis, Nikos ; Mitchell, William J. ; Rumbles, Gary ; Shaheen, Sean E. ; Pacheco, Kimberly A O. / Structural characterization of phenyl-cored thiophene dendrimers for organic photovoltaics. ACS National Meeting Book of Abstracts. 2007.
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