Very high open-circuit voltage of 5.89 v in organic solar cells with 10-fold-tandem structure

Ye Zou, Zhenbo Deng, William J. Potscavage, Masaya Hirade, Yanqiong Zheng, Chihaya Adachi

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)

Abstract

Organic solar cells (OSCs) based on chloroaluminum phthalocyanine (ClAlPc) as donor and fullerene C 60 as acceptor with a multi-tandem structure were fabricated. We demonstrated very high open-circuit voltage (V OC) and enhanced power conversion efficiency (PCE) for the multi-tandem OSCs. Using a fivefold structure, we obtained PCE of 2.49% with a V OC of 3.50 V, in comparison with PCE of ∼2 and V OC of 0.72-0.81 V for the single device. We also fabricated a tenfold-stacked OSC showing an extremely high V OC of 5.89 V. The multi-tandem OSCs with very high V OC have great potential for applications in limited-area low-power electronics.

Original languageEnglish
Article number243302
JournalApplied Physics Letters
Volume100
Issue number24
DOIs
Publication statusPublished - Jun 11 2012

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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