Effect of self-organization in polymer/fullerene bulk heterojunctions on solar cell performance

Vishal Shrotriya, Yan Yao, Gang Li, Yang Yang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

297 Citations (Scopus)

Abstract

The authors investigate the effect of self-organization by controlling the growth rate on the performance of polymer/fullerene bulk-heterojunction solar cells. The effect of growth rate on the morphology of the active layer is studied by atomic force microscopy technique. The electrical characterization by dark current and photocurrent measurements is performed. The hole mobility in the polymer increases by about two orders in magnitude and the carrier transport becomes highly balanced. Increased exciton generation rate, more efficient electron-hole pair dissociation, higher carrier mobility, and balanced carrier transport in the active layer explain the enhancement in the short-circuit current and fill factor.
Original languageEnglish
Article number063505
JournalApplied Physics Letters
Volume89
Issue number6
DOIs
Publication statusPublished - 18 Aug 2006
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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