Influence of squaraine aggregation on short-circuit current and device efficiency

Author

Spencer, Susan ; Murcia, Victor ; Reid, Obadiah ; Rumbles, Garry ; Belfield, Kevin ; Cody, Jeremy ; Collison, Christopher

Author_Institution

Rochester Inst. of Technol., Rochester, NY, USA

fYear

2012

fDate

3-8 June 2012

Abstract

Linear absorption measurements, current-voltage characteristics, and time-resolved microwave conductivity measurements were utilized to investigate the impact of molecular aggregation of a novel donor material on photovoltaic device efficiency. We report efficiencies of 2.4+/-0.3% and explain the increase in short-circuit current and efficiency as a function of the increased aggregation.

Keywords

absorption; aggregation; high-frequency effects; microwave measurement; photovoltaic cells; short-circuit currents; current-voltage characteristics; donor material; linear absorption measurements; molecular aggregation; photovoltaic device efficiency; short-circuit current; squaraine aggregation; time-resolved microwave conductivity measurements; Absorption; Aggregates; Current measurement; Films; Microwave measurements; Plastics; absorption; charge carrier mobility; current voltage characteristics; energy conversion; organic materials; photovoltaic cells; thin films;

fLanguage

English

Publisher

ieee

Conference_Titel

Photovoltaic Specialists Conference (PVSC), 2012 38th IEEE

Conference_Location

Austin, TX

ISSN

0160-8371

Print_ISBN

978-1-4673-0064-3

Type

conf

DOI

10.1109/PVSC.2012.6318168

Filename

6318168