Conference item
Characterisation of different hole transport materials as used in organic p-i-n solar cells
- Abstract:
- To reach higher performances in organic solar cells, each layer has to be optimised with respect to its purpose. In the case of a p-i-n structured solar cell, the layers are the absorber system, the doped electron and hole transport layers, and the bottom and top contacts. This work focuses on the investigation and characterisation of the transparent hole transport materials PV-TPD, PV-TPDoM, Di-NPB, and MeO-Spiro-TPD, as used in organic p-i-n solar cells. The motivation is to replace the hole transport material MeO-TPD, which has been used so far despite its morphological instability at elevated temperatures, with an energetically and morphologically more suitable material. The hole transport materials were investigated for dopability, hole mobility, absorption, reflection, cyclic voltammetry, and glass transition temperature. Further specific material properties were determined with simplified structures, e.g. m-i-p diodes, and the standard solar cells, consisting of the fullerene C60 as acceptor and ZnPc as the donor material. The Di-NPB has turned out to be the best choice with respect to its intrinsic properties and device parameters. The deep lying HOMO, the high hole mobility of μ = 1.9 · 10−4 cm2/Vs, the morphological stability of Tg = 158°C, and the excellent results of the C60:ZnPc bulk heterojunction solar cell makes the Di-NPB highly suitable for replacement of the MeO-TPD in organic solar cells.
- Publication status:
- Published
- Peer review status:
- Reviewed (other)
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- Files:
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(Preview, Version of record, pdf, 719.6KB, Terms of use)
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- Publisher copy:
- 10.1117/12.782412
Authors
- Publisher:
- Society of Photo-Optical Instrumentation Engineers
- Host title:
- Proceedings of SPIE - The International Society for Optical Engineering
- Volume:
- 6999
- Publication date:
- 2008-01-01
- DOI:
- ISSN:
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0277-786X
- ISBN:
- 9780819471970
- Language:
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English
- Keywords:
- Pubs id:
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pubs:405426
- UUID:
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uuid:98f5665f-3406-445f-a0f6-445b73dfc248
- Local pid:
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pubs:405426
- Source identifiers:
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405426
- Deposit date:
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2013-09-26
Terms of use
- Copyright holder:
- Society of Photo-Optical Instrumentation Engineers
- Copyright date:
- 2008
- Notes:
- Steffen Pfuetzner et al., "Characterisation of different hole transport materials as used in organic p-i-n solar cells," Organic Optoelectronics and Photonics III, Paul L. Heremans, Michele Muccini, Eric A. Meulenkamp, Editors, Proc. SPIE 6999, 69991M (2008). Copyright 2008 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
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