Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.orgel.2010.09.011
Title: Towards high efficiency solution processable inverted bulk heterojunction polymer solar cells using modified indium tin oxide cathode
Authors: Chen, X. 
Yang, J. 
Haley, L.Y.X.C.
Lu, J.
Zhu, F.
Loh, K.P. 
Keywords: Carbon nanoparticles
Inverted bulk heterojunction polymer solar cells
ITO cathode
Issue Date: Dec-2010
Source: Chen, X., Yang, J., Haley, L.Y.X.C., Lu, J., Zhu, F., Loh, K.P. (2010-12). Towards high efficiency solution processable inverted bulk heterojunction polymer solar cells using modified indium tin oxide cathode. Organic Electronics: physics, materials, applications 11 (12) : 1942-1946. ScholarBank@NUS Repository. https://doi.org/10.1016/j.orgel.2010.09.011
Abstract: High efficiency inverted regioregular poly(3-hexylthiophene) (P3HT) and [6,6]-phenyl C61-butyric acid methyl ester (PCBM)-based polymer solar cells (PSCs) using an indium tin oxide (ITO) cathode, modified with a solution-processed ionic liquid-functionalized carbon nanoparticles (ILCNs) layer, was demonstrated. ILCNs-modified ITO cathode has a very good thermal stability and a superior surface electronic property suited for application in polymer solar cells. A power conversion efficiency (PCE) of 3.2% was obtained for inverted PSCs measured under AM1.5G illumination of 100 mW/cm2, which is comparable to PCE of a reference P3HT:PCBM-based solar cell having a conventional structure. There was almost no deterioration in the performance of inverted PSCs that were aged over a post-annealing temperature range from 100 to 200 °C. The work function of ILCNs-modified ITO cathode annealed at different temperatures was also measured using ultraviolet photoelectron spectroscopy. It was found that the work function of 4.4 eV, measured for a bare ITO electrode, decreased to 3.8 eV when it was modified with ILCNs, and was not dependent on the post-annealing temperature. © 2010 Elsevier B.V. All rights reserved.
Source Title: Organic Electronics: physics, materials, applications
URI: http://scholarbank.nus.edu.sg/handle/10635/95328
ISSN: 15661199
DOI: 10.1016/j.orgel.2010.09.011
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