Journal
ORGANIC ELECTRONICS
Volume 17, Issue -, Pages 28-32Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.orgel.2014.11.013
Keywords
Organic solar cell; Hole transporting material; Carbazolocarbazole
Funding
- DFG
- Spanish Ministry of Science and Technology [CTQ-2011-27175]
- Spanish Ministry of Education
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The adaptation of interfacial layers to the stacked architecture of organic solar cells represents a very useful strategy for improved device operation. In this context, heteroacenic structures such as carbazolocarbazoles have been doped and evaluated as hole transporting materials in small molecule solar cell with either inverted or conventional architecture. S-kinks in the IV-curve detected for the inverted solar cells could be remarkably corrected by reversing the deposition sequence, highlighting the importance of buffer layer adjustment. Some of the studied carbazolocarbazoles proved to be a suitable molecule to be used as hole transporting materials. (C) 2014 Elsevier B.V. All rights reserved.
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