Improving the performance of P3HT/PCBM solar cells with squaraine dye

Jing Shun Huang, Tenghooi Goh, Xiaokai Li, Matthew Y. Sfeir, Elizabeth A. Bielinski, Stephanie Tomasulo, Minjoo L. Lee, Nilay Hazari, Andre Taylor

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

Abstract

Expanding the spectral absorption breadth and efficiently harvesting excitons are crucial towards creating highly efficient polymer solar cells. Here we describe a strategy to realize broad-band light harvesting in poly(3-hexylthiophene) (P3HT)-based solar cells. We introduce the use of squaraine dye molecules that play a dual role towards improving P3HT-based solar cells. The first benefit is an increase in the spectral absorption in the near infrared region. The second advantage is the collection of excitons close to the interfacial heterojunctions via Förster resonance energy transfer (FRET). Unlike traditional multi-blend systems, where each donor works independently in separate spectral responses, FRET-based systems enable the effective use of multiple donors with significant improvements in light absorption and conversion. Ultrafast transient absorption experiments show that the excitation energy from P3HT can be transferred rapidly (within a few picoseconds) and efficiently (up to 96%) to the squaraine via FRET. As a result, the overall power conversion efficiency is improved. This architecture opens up a new paradigm towards transformative improvements of polymer solar cells.

Original languageEnglish (US)
Title of host publicationOrganic Photovoltaics XIV
Volume8830
DOIs
StatePublished - Dec 9 2013
EventOrganic Photovoltaics XIV - San Diego, CA, United States
Duration: Aug 27 2013Aug 29 2013

Other

OtherOrganic Photovoltaics XIV
CountryUnited States
CitySan Diego, CA
Period8/27/138/29/13

Fingerprint

Solar Cells
Dyes
Energy transfer
Solar cells
Energy Transfer
Coloring Agents
Absorption
solar cells
dyes
Excitons
Exciton
energy transfer
Harvesting
Polymers
Excitation energy
excitons
absorption spectra
Open Architecture
Heterojunction
Light absorption

Keywords

  • P3HT
  • Resonance energy transfer
  • Solar cells
  • Squaraine

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

Huang, J. S., Goh, T., Li, X., Sfeir, M. Y., Bielinski, E. A., Tomasulo, S., ... Taylor, A. (2013). Improving the performance of P3HT/PCBM solar cells with squaraine dye. In Organic Photovoltaics XIV (Vol. 8830). [88300U] https://doi.org/10.1117/12.2023447

Improving the performance of P3HT/PCBM solar cells with squaraine dye. / Huang, Jing Shun; Goh, Tenghooi; Li, Xiaokai; Sfeir, Matthew Y.; Bielinski, Elizabeth A.; Tomasulo, Stephanie; Lee, Minjoo L.; Hazari, Nilay; Taylor, Andre.

Organic Photovoltaics XIV. Vol. 8830 2013. 88300U.

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

Huang, JS, Goh, T, Li, X, Sfeir, MY, Bielinski, EA, Tomasulo, S, Lee, ML, Hazari, N & Taylor, A 2013, Improving the performance of P3HT/PCBM solar cells with squaraine dye. in Organic Photovoltaics XIV. vol. 8830, 88300U, Organic Photovoltaics XIV, San Diego, CA, United States, 8/27/13. https://doi.org/10.1117/12.2023447
Huang JS, Goh T, Li X, Sfeir MY, Bielinski EA, Tomasulo S et al. Improving the performance of P3HT/PCBM solar cells with squaraine dye. In Organic Photovoltaics XIV. Vol. 8830. 2013. 88300U https://doi.org/10.1117/12.2023447
Huang, Jing Shun ; Goh, Tenghooi ; Li, Xiaokai ; Sfeir, Matthew Y. ; Bielinski, Elizabeth A. ; Tomasulo, Stephanie ; Lee, Minjoo L. ; Hazari, Nilay ; Taylor, Andre. / Improving the performance of P3HT/PCBM solar cells with squaraine dye. Organic Photovoltaics XIV. Vol. 8830 2013.
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