Journal
IEEE TRANSACTIONS ON ELECTRON DEVICES
Volume 62, Issue 9, Pages 3029-3033Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TED.2015.2455060
Keywords
Inverted structure; metallated conjugated polymers; nanoscale morphology; polymer solar cells (PSCs)
Funding
- National Science Foundation (NSF) CAREER [ECCS-0950731]
- NASA Experimental Program to Stimulate Competitive Research [NNX13AD31A]
- NSF Major Research Instrumentation Program [1229577]
- Research Grants Council of the Hong Kong Special Administrative Region [T23-713/11]
- Hong Kong Research Grants Council [HKBU203313]
- Hong Kong Baptist University [FRG2/12-13/083]
- Div Of Electrical, Commun & Cyber Sys
- Directorate For Engineering [0950731] Funding Source: National Science Foundation
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Inverted polymer solar cells (iPSCs) have shown a great potential in organic photovoltaics due to its enhanced stability and large-scale roll-to-roll processing. Metallated conjugated polymers also show promise as a donor material in the PSCs. In this paper, the role of solvents on the performance of inverted structure metallated PSCs was understood. Chlorobenzene (CB) and toluene were used as solvents to obtain the optimum morphology for improved device efficiency. To understand the charge transport properties and charge carrier lifetime in metallated polymer iPSCs, atomic force microscopy and transient photocurrent measurements were performed. The results showed that the CB as a solvent can improve the morphology of the active layer and enhance the performance of metallated iPSCs.
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