Modelling the effect of the structure of polymer photocells on their absorption spectrum

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A framework for the calculation of light absorption in multicomponent polymer photocells is presented. It is tested on a modelled periodic lateral structure of two polyfluorene conjugated polymers with complementary absorption spectra. It is shown how the coupling induced by scattering at the interfaces between different regions of the structure leads to enhanced absorption arising from energy flow from the less absorbing to the more absorbing material. We also show that a periodic structure can lead to resonance amplification of absorption in part of the absorption spectrum. These lead to an enhancement in the calculated absorption spectrum by up to 2.6 times. It is further show that a periodic lateral structure can show larger optical absorption than similar devices with a bilayer structure. This method is generally applicable to multi-component heterojunction photovoltaic diodes

Original languageEnglish
Title of host publication2008 IEEE 25th Convention of Electrical and Electronics Engineers in Israel, IEEEI 2008
Pages260-264
Number of pages5
DOIs
StatePublished - 1 Dec 2008
Event2008 IEEE 25th Convention of Electrical and Electronics Engineers in Israel, IEEEI 2008 - Eilat, Israel
Duration: 3 Dec 20085 Dec 2008

Publication series

NameIEEE Convention of Electrical and Electronics Engineers in Israel, Proceedings

Conference

Conference2008 IEEE 25th Convention of Electrical and Electronics Engineers in Israel, IEEEI 2008
Country/TerritoryIsrael
CityEilat
Period3/12/085/12/08

Keywords

  • Bilayer
  • Periodic structure
  • Solar cell

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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