Comprehensive Device Modeling of Plasmon-Enhanced and Optical Field-Dependent Photocurrent Generation in Organic Bulk Heterojunctions

Devin Rourke, Sungmo Ahn, Alexandre Nardes, Jao Van De Lagemaat, Nikos Kopidakis, Wounjhang Park

Research output: Contribution to conferencePaperpeer-review

Abstract

We present a comprehensive numerical model to describe the coupled optical and electrical behavior of plasmon-enhanced polymer/fullerene bulk heterojunction solar cells. We incorporate a bound electron/hole pair generation rate that is dependent on both the 2-dimensional position within the P3HT:PCBM active layer, and the solar spectral irradiance. By considering the absorption and plasmonic properties of two different popular device architectures, and applying the Poisson, current continuity, and drift/diffusion equations, we are able to predict quantum efficiency, short-circuit current density, and desired carrier mobility ratios for devices possessing strongly non-uniform optical fields commonly produced by nanostructures.

Original languageAmerican English
Pages147-150
Number of pages4
DOIs
StatePublished - 2014
Event40th IEEE Photovoltaic Specialist Conference, PVSC 2014 - Denver, United States
Duration: 8 Jun 201413 Jun 2014

Conference

Conference40th IEEE Photovoltaic Specialist Conference, PVSC 2014
Country/TerritoryUnited States
CityDenver
Period8/06/1413/06/14

Bibliographical note

Publisher Copyright:
© 2014 IEEE.

NREL Publication Number

  • NREL/CP-5900-62177

Keywords

  • Heterojunctions
  • Nanophotonics
  • Numerical models
  • Organic
  • Photovoltaic cells
  • Plasmons
  • Semiconductor device modeling

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