Self-assembled monolayer initiated electropolymerization

A route to thin-film materials with enhanced photovoltaic performance

Euiyong Hwang, K. M. De Nalin Silva, Chad B. Seevers, Jie-Ren Li, Jayne C. Garno, Evgueni E. Nesterov

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

Continuing progress in the field of organic polymer photovoltaic (PV) devices requires the development of new materials with better charge-transport efficiency. To improve this parameter, we have investigated surface-attached bilayer polymer PV thin films prepared starting from a covalently attached monolayer of an electroactive initiator using sequential electropolymerization of dithiophene and its derivatives. These systems were found to show significantly increased photocurrent generation quantum yields as compared to systems made through conventional approaches. In addition, the described PV thin films possess remarkable mechanical, air, and photostability. These properties likely arise from the more uniform and better ordered bulk layer morphologies as well as tighter covalently bonded contacts at the interfacial junctions, contributing to improved charge transport. While more studies on the fundamental reasons behind the discovered phenomenon are currently underway, this information can be readily applied to build more efficient organic polymer photovoltaics.

Original languageEnglish
Pages (from-to)9700-9706
Number of pages7
JournalLangmuir
Volume24
Issue number17
DOIs
Publication statusPublished - 2008 Sep 2

Fingerprint

Organic polymers
Electropolymerization
Self assembled monolayers
Charge transfer
routes
Thin films
polymers
Quantum yield
thin films
Photocurrents
Monolayers
Polymers
initiators
Derivatives
photocurrents
Air
air

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Colloid and Surface Chemistry

Cite this

Hwang, Euiyong ; De Nalin Silva, K. M. ; Seevers, Chad B. ; Li, Jie-Ren ; Garno, Jayne C. ; Nesterov, Evgueni E. / Self-assembled monolayer initiated electropolymerization : A route to thin-film materials with enhanced photovoltaic performance. In: Langmuir. 2008 ; Vol. 24, No. 17. pp. 9700-9706.
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Self-assembled monolayer initiated electropolymerization : A route to thin-film materials with enhanced photovoltaic performance. / Hwang, Euiyong; De Nalin Silva, K. M.; Seevers, Chad B.; Li, Jie-Ren; Garno, Jayne C.; Nesterov, Evgueni E.

In: Langmuir, Vol. 24, No. 17, 02.09.2008, p. 9700-9706.

Research output: Contribution to journalArticle

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