Open-cage fullerenes as n-type materials in organic photovoltaics: Relevance of frontier energy levels, carrier mobility and morphology of different sizable open-cage fullerenes with power conversion efficiency in devices

Chih Ping Chen*, Yu Wei Lin, Jia Cherng Horng, Shih-Ching Chuang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

23 Scopus citations

Abstract

Organic bulk heterojunction (OBHJ) photovoltaics, incorporating open-cage fullerenes with orifice-size of 8, 12, 13, 16 and 20-membered-rings as n-type materials, display power conversion efficiency (PCE) up to 2.9% by the 8-membered-ring fullerene under AM 1.5G irradiation; their PCEs decrease as the orifice-size of open-cage fullerene increases, primarily due to electron-mobility descends as the cage is ruptured to larger holes.

Original languageEnglish
Pages (from-to)776-780
Number of pages5
JournalAdvanced Energy Materials
Volume1
Issue number5
DOIs
StatePublished - 16 Sep 2011

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