Enhanced Open-Circuit Voltage in Subphthalocyanine/C60 Organic Photovoltaic Cells

A double-heterostructure boron subphthalocyanine chloride (SubPc)/C60 thin-film photovoltaic cell exhibits a more than doubled V oc compared to a conventional copper phthalocyanine (CuPc)/C60 cell under 1 sun AM1.5G simulated illumination. The lower oxidation potential of SubPc results in an increas...

Full description

Saved in:
Bibliographic Details
Published in:Journal of the American Chemical Society 2006-06, Vol.128 (25), p.8108-8109
Main Authors: Mutolo, Kristin L, Mayo, Elizabeth I, Rand, Barry P, Forrest, Stephen R, Thompson, Mark E
Format: Article
Language:English
Subjects:
Applied sciences
Energy
Exact sciences and technology
Natural energy
Photovoltaic conversion
Solar cells. Photoelectrochemical cells
Solar energy
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A double-heterostructure boron subphthalocyanine chloride (SubPc)/C60 thin-film photovoltaic cell exhibits a more than doubled V oc compared to a conventional copper phthalocyanine (CuPc)/C60 cell under 1 sun AM1.5G simulated illumination. The lower oxidation potential of SubPc results in an increase in the energy difference between the lowest unoccupied molecular orbital of the acceptor-like material and the highest occupied molecular orbital of the donor-like material (referred to as the interface gap, I g) by 400 meV. We attribute the significant increase in V oc to this increase in I g.
ISSN:0002-7863
1520-5126
DOI:10.1021/ja061655o