High-Efficiency, Vacuum-Deposited, Small-Molecule Organic Tandem and Triple-Junction Photovoltaic Cells

High‐efficiency, vacuum‐deposited small‐molecule organic tandem and triple‐junction photovoltaic cells are demonstrated. The devices are composed of two sub‐cells with minimal absorption spectral overlap. A nearly transparent fullerene/wide‐energy gap organic mixture is introduced as the interconnec...

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Bibliographic Details
Published in:Advanced energy materials 2014-12, Vol.4 (18), p.n/a
Main Authors: Che, Xiaozhou, Xiao, Xin, Zimmerman, Jeramy D., Fan, Dejiu, Forrest, Stephen R.
Format: Article
Language:English
Subjects:
Blocking
Devices
Energy conversion efficiency
Fullerenes
interconnecting layers
multijunction photovoltaic devices
Photovoltaic cells
small molecules
Solar cells
Spectra
sub-cells
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Summary:High‐efficiency, vacuum‐deposited small‐molecule organic tandem and triple‐junction photovoltaic cells are demonstrated. The devices are composed of two sub‐cells with minimal absorption spectral overlap. A nearly transparent fullerene/wide‐energy gap organic mixture is introduced as the interconnecting blocking layer to further reduce cell losses. A power conversion efficiency of 10.0% is achieved for the tandem cell and 11.1% is achieved for a triple‐junction cell.
ISSN:1614-6832
1614-6840
DOI:10.1002/aenm.201400568