Giant enhancement of inverted polymer solar cells efficiency by manipulating dual interlayers with integrated approaches

Hsing Hua Hsieh, Yun Ming Sung, Fang Chi Hsu, Kuo Jui Hsiao, Ya Ju Lee, Yang Fang Chen

Research output: Contribution to journalArticle

11 Citations (Scopus)


Interlayer properties play an important role in governing the charge collection efficiency of polymer solar cells. We report a giant enhancement of light harvesting based on the integration of different concepts to manipulate the cathode and anode interlayers in an inverted ITO/ZnO-nanorod/poly(3-hexythiophene):(6,6)-phenyl C61 butyric acid methyl ester (P3HT:PCBM)/poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS)/Ag cell structure. A layer of conjugated small molecules is self-assembled on the front cathode interlayer while gold nanoparticles are doped into the rear anode interlayer. The former one carries the characteristic of surface passivation and the latter one has the unique property of localized surface plasmon effect. Quite interestingly, both approaches can effectively enhance the exciton dissociation rate and extend the carrier lifetime. Through the integrated approaches in a single cell, by taking the advantage of each individual contribution and the coupling effect between them, the efficiency can be further boosted from 2.02% to 4.36%, which sets the record for the inverted polymer solar cell using ZnO-nanorod as electron transporting layer and P3HT:PCBM as photoactive layer so far. This journal is

Original languageEnglish
Pages (from-to)1549-1556
Number of pages8
JournalRSC Advances
Issue number2
Publication statusPublished - 2015


ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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