Sullivan, Paul J., Jones, T. S. (Tim S.), Ferguson, A. J. and Heutz, S.. (2007) Structural templating as a route to improved photovoltaic performance in copper phthalocyanine/fullerene (C60) heterojunctions. Applied Physics Letters, Vol.91 (No.23). p. 233114. ISSN 0003-6951

Preview

PDF WRAP_Sullivan_structural_templating.pdf - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader Download (373Kb)

Abstract

We have developed a method to improve the short circuit current density in copper phthalocyanine (CuPc)/fullerene (C60) organic solar cells by ~60% by modifying the CuPc crystal orientation through use of a molecular interlayer to maximize charge transport in the direction between the two electrodes. Powder x-ray diffraction and electronic absorption spectroscopy show that a thin 3,4,9,10-perylenetetracarboxylic dianhydride interlayer before CuPc growth templates the CuPc film structure, forcing the molecules to lie flat with respect to the substrate surface, although the intrastack orientation is unaffected. This modified stacking configuration facilitates charge transport and improves charge collection.

Item Type:	Journal Article
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering Q Science > QD Chemistry
Divisions:	Faculty of Science > Chemistry
Library of Congress Subject Headings (LCSH):	Semiconductor films, Heterojunctions, Semiconduictors -- Junction, Solar cells, X-rays -- Diffraction
Journal or Publication Title:	Applied Physics Letters
Publisher:	American Institute of Physics
ISSN:	0003-6951
Date:	6 December 2007
Volume:	Vol.91
Number:	No.23
Page Range:	p. 233114
Identification Number:	10.1063/1.2821229
Status:	Peer Reviewed
Access rights to Published version:	Open Access
References:	# C. W. Tang, Appl. Phys. Lett. 48, 183 (1986). # S. R. Forrest, L. Y. Leu, F. F. So, and W. Y. Yoon, J. Appl. Phys. 66, 5908 (1989). [ISI] # P. Peumans, V. Bulovic, and S. R. Forrest, Appl. Phys. Lett. 76, 2650 (2000). # P. Sullivan, S. Heutz, S. M. Schultes, and T. S. Jones, Appl. Phys. Lett. 84, 1210 (2004). # J. G. Xue, B. P. Rand, S. Uchida, and S. R. Forrest, Adv. Mater. (Weinheim, Ger.) 17, 66 (2005). [ISI] # S. Heutz, P. Sullivan, B. M. Sanderson, S. M. Schultes, and T. S. Jones, Sol. Energy Mater. Sol. Cells 83, 229 (2004). [ISI] # S. Nespurek, H. Podlesak, and C. Hamann, Thin Solid Films 249, 230 (1994). [Inspec] [ISI] # S. Heutz, S. M. Bayliss, R. L. Middleton, G. Rumbles, and T. S. Jones, J. Phys. Chem. B 104, 7124 (2000). # K. Xiao, Y. Q. Liu, G. Yu, and D. B. Zhu, Synth. Met. 137, 991 (2003). [Inspec] # R. D. Gould, Thin Solid Films 125, 63 (1985). [Inspec] [ISI] # A. J. Lovinger, S. R. Forrest, M. L. Kaplan, P. H. Schmidt, and T. Venkatesan, J. Appl. Phys. 55, 476 (1984). # S. Heutz, A. J. Ferguson, G. Rumbles, and T. S. Jones, Org. Electron. 3, 119 (2002). # S. Heutz, R. Cloots, and T. S. Jones, Appl. Phys. Lett. 77, 3938 (2000). # S. Heutz and T. S. Jones, J. Appl. Phys. 92, 3039 (2002). # S. Yim, S. Heutz, and T. S. Jones, Phys. Rev. B 67, 165308 (2003). # A. A. Ebert and H. B. Gottlieb, J. Am. Chem. Soc. 74, 2806 (1952). # Rudiono, F. Kaneko, and M. Takeuchi, Appl. Surf. Sci.142, 598 (1999). # M. M. El-Nahass, F. S. Bahabri, A. A. AL Ghamdi, and S. R. Al-Harbi, Egypt. J. Solids 25, 307 (2002). # B. P. Rand, J. Xue, S. Uchida, and S. R. Forrest, J. Appl. Phys. 98, 124902 (2005).
URI:	http://wrap.warwick.ac.uk/id/eprint/968

Request changes to a record

Actions (login required)

View Item