Can anyone decipher if this is applicable to Solterra
Enhancement of device performance of organic solar cells by an interfacial perylene derivative layer
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Inho Kim†, Hanna M. Haverinen‡, Jian Li† and Ghassan E. Jabbour*†§
School of Mechanical, Aerospace, Chemical and Materials Engineering and Advanced Photovoltaics Center, Arizona State University, 7700 South River Parkway, Tempe, Arizona 85284, and University of Oulu, P.O. Box 4500, 90014 Oulun Yliopisto, Finland
ACS Appl. Mater. Interfaces, 2010, 2 (5), pp 1390–1394
DOI: 10.1021/am100039m
Publication Date (Web): April 21, 2010
Copyright © 2010 American Chemical Society
* Corresponding author. E-mail: : jabbour@asu.edu or Ghassan.jabbour@kaust.edu.sa. Current address: Solar and Alternative Energy Engineering Research Center, Physical Science and Engineering, KAUST, Thuwal, Saudi Arabia., † School of Mechanical, Aerospace, Chemical and Materials Engineering, Arizona State University., ‡ University of Oulu., § Advanced Photovoltaics Center, Arizona State University.
Abstract
We report that device performance of organic solar cells consisting of zinc phthalocyanine and fullerene (C60) can be enhanced by insertion of a perylene derivative interfacial layer between fullerene and bathocuproine (BCP) exciton blocking layer (EBL). The morphology of the BCP is influenced by the underlying N,N'-dihexyl-perylene-3,4,9,10-bis(dicarboximide) (PTCDI-C6), which promotes migration of the cathode metal into the BCP layer. Insertion of a PTCDI-C6 layer between fullerene and BCP layers enhances the power conversion efficiency to 2.5%, an improvement of 32% over devices without PTCDI-C6 layer. The enhancement in device performance by insertion of PTCDI-C6 is attributed to a reduction in series resistance due to promoted metal migration into BCP and optimized optical interference effects in multilayered devices.
