A simple parallel tandem organic solar cell based on metallophthalocyanines Journal Articles

abstract

• A simple parallel tandem solar cell based on a combination of Zn-phthalocyanine (Pc) and ClInPc has been fabricated and characterized. Compared to a traditional series tandem cell, parallel tandem cells eliminate the need for a semitransparent recombination layer, reducing the complexity of device fabrication while still providing an excellent increase in device performance. Results show a realized broadening of the spectral response and enhancement of the external quantum efficiency as a result of the complementary absorption profiles of ZnPc and ClInPc in the near infrared region. Introduction of a blended ClInPc:C60 layer is shown to more than double the power conversion efficiency of a standard ZnPc/C60 bilayer device (PCE=0.86%). The enhanced performance of the parallel tandem (PCE=1.81%) arises from an increase in both the open circuit voltage and the short circuit current.

authors

• Yuen, Avery P
• Hor, Ah-Mee
• Preston, John Stewart
• Klenkler, Richard
• Bamsey, Nathan M
• Loutfy, Rafik O

status

• published 

publication date

• April 25, 2011

has subject area

• 02 Physical Sciences (FoR)
• 09 Engineering (FoR)
• 10 Technology (FoR)
• Applied Physics (Science Metrix)

published in

• Applied Physics Letters  Journal

keywords

• Physical Sciences
• Physics
• Physics, Applied
• Science & Technology

Digital Object Identifier (DOI)

• 10.1063/1.3579250

volume

• 98

issue

• 17