The influences of buffer interlayer at the donor/acceptor interface on the open circuit voltage of typical copper phthalocyanine organic photovoltaic devices are studied. Six fluorescent dyes with progressively increasing ionization potentials were used to investigate the factors influencing the . The short-circuit current and fill factor of device incorporating dye interlayer are lower than those of standard bilayer device. On the other hand, the increases linearly with the of dye material and falls off when the is equal to or greater than 5.6 eV, in which the energy offset between the highest occupied molecular orbitals at the interlayer/ heterojunction is smaller than the exciton binding energy. The findings underscore the importance of energy offsets in photovoltaic responses.
Skip Nav Destination
Article navigation
12 October 2009
Research Article|
October 13 2009
Impact of dye interlayer on the performance of organic photovoltaic devices
S. L. Lai;
S. L. Lai
1Center of Super-Diamond and Advanced Films (COSDAF) and Department of Physics and Materials Science,
City University of Hong Kong
, Hong Kong SAR, China
Search for other works by this author on:
M. F. Lo;
M. F. Lo
1Center of Super-Diamond and Advanced Films (COSDAF) and Department of Physics and Materials Science,
City University of Hong Kong
, Hong Kong SAR, China
Search for other works by this author on:
M. Y. Chan;
M. Y. Chan
a)
2Department of Chemistry,
The University of Hong Kong
, Pokfulam Road, Hong Kong SAR, China
Search for other works by this author on:
C. S. Lee;
C. S. Lee
a)
1Center of Super-Diamond and Advanced Films (COSDAF) and Department of Physics and Materials Science,
City University of Hong Kong
, Hong Kong SAR, China
Search for other works by this author on:
S. T. Lee
S. T. Lee
1Center of Super-Diamond and Advanced Films (COSDAF) and Department of Physics and Materials Science,
City University of Hong Kong
, Hong Kong SAR, China
Search for other works by this author on:
a)
Authors to whom correspondence should be addressed. Electronic addresses: [email protected] and [email protected].
Appl. Phys. Lett. 95, 153303 (2009)
Article history
Received:
July 28 2009
Accepted:
September 15 2009
Citation
S. L. Lai, M. F. Lo, M. Y. Chan, C. S. Lee, S. T. Lee; Impact of dye interlayer on the performance of organic photovoltaic devices. Appl. Phys. Lett. 12 October 2009; 95 (15): 153303. https://doi.org/10.1063/1.3243991
Download citation file:
Pay-Per-View Access
$40.00
Sign In
You could not be signed in. Please check your credentials and make sure you have an active account and try again.
Citing articles via
Roadmap on photonic metasurfaces
Sebastian A. Schulz, Rupert. F. Oulton, et al.
Sputter epitaxy of ScAlN films on GaN high electron mobility transistor structures
Tomoya Okuda, Shunsuke Ota, et al.
Special issue APL organic and hybrid photodetectors
Karl Leo, Canek Fuentes-Hernandez, et al.
Related Content
Extremely low voltage and high bright p - i - n fluorescent white organic light-emitting diodes
Appl. Phys. Lett. (March 2008)
Low voltage organic light-emitting devices with triphenylphosphine oxide layer
Appl. Phys. Lett. (August 2008)
Comparison of ultraviolet- and charge-induced degradation phenomena in blue fluorescent organic light emitting diodes
Appl. Phys. Lett. (July 2010)
Performance enhancement of polymer solar cells with luminescent down-shifting sensitizer
Appl. Phys. Lett. (July 2013)
The effect of the hole injection layer on the performance of single layer organic light-emitting diodes
J. Appl. Phys. (December 2014)