Plasmonic electrodes for bulk-heterojunction organic photovoltaics

A review

Christopher E. Petoukhoff, Zeqing Shen, Manika Jain, Aimei Chang, Deirdre M O'Carroll

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

Here, we review recent progress on the integration of plasmonic electrodes into bulkheterojunction organic photovoltaic devices. Plasmonic electrodes, consisting of thin films of metallic nanostructures, can exhibit a number of optical, electrical, and morphological effects that can be exploited to improve performance parameters of ultrathin photovoltaic active layers. We review the various types of plasmonic electrodes that have been incorporated into organic photovoltaics such as nanohole, nanowire, and nanoparticle arrays and grating electrodes and their impact on various device performance parameters. The use of plasmonic back electrodes can impact device performance in a number of ways because the mechanisms of performance improvements are often a complex combination of optical, electrical, and structural effects. Inverted bulk heterojunction device architectures have been shown to benefit from the multifunctionality of plasmonic back electrodes as they can minimize space-charge effects and reduce hole carrier collection lengths in addition to providing improved light localization in the active layer. The use of semi-transparent plasmonic electrodes can also be beneficial for organic photovoltaics as they can exhibit a variety of optical properties such as light scattering, light localization, extraordinary transmission of light, and absorption-induced transparency, in addition to providing an alternative to metal oxide-based transparent electrodes.

Original languageEnglish
Article number057002
JournalJournal of Photonics for Energy
Volume5
Issue number1
DOIs
Publication statusPublished - Jan 1 2015

Fingerprint

Heterojunctions
heterojunctions
Electrodes
electrodes
heterojunction devices
Wave transmission
Electric space charge
Light scattering
Transparency
Nanowires
metal oxides
space charge
Nanostructures
nanowires
light scattering
Optical properties
gratings
Nanoparticles
optical properties
Thin films

Keywords

  • Bulk-heterojunction
  • Electrode
  • Organic
  • Photovoltaic
  • Plasmonic

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Atomic and Molecular Physics, and Optics

Cite this

Plasmonic electrodes for bulk-heterojunction organic photovoltaics : A review. / Petoukhoff, Christopher E.; Shen, Zeqing; Jain, Manika; Chang, Aimei; O'Carroll, Deirdre M.

In: Journal of Photonics for Energy, Vol. 5, No. 1, 057002, 01.01.2015.

Research output: Contribution to journalArticle

Petoukhoff, Christopher E. ; Shen, Zeqing ; Jain, Manika ; Chang, Aimei ; O'Carroll, Deirdre M. / Plasmonic electrodes for bulk-heterojunction organic photovoltaics : A review. In: Journal of Photonics for Energy. 2015 ; Vol. 5, No. 1.
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