| Publikationstyp: | Beitrag in wissenschaftlicher Zeitschrift |
| Art der Begutachtung: | Peer review (Publikation) |
| Titel: | Organic salt semiconductor with high photoconductivity and long carrier lifetime |
| Autor/-in: | Wang, Lei Jenatsch, Sandra Ruhstaller, Beat Hinderling, Christian Gesevičius, Donatas Hany, Roland Nüesch, Frank |
| DOI: | 10.1002/adfm.201705724 |
| Erschienen in: | Advanced Functional Materials |
| Band(Heft): | 28 |
| Heft: | 16 |
| Seite(n): | 1705724 |
| Erscheinungsdatum: | 2018 |
| Verlag / Hrsg. Institution: | Wiley |
| ISSN: | 1616-301X 1616-3028 |
| Sprache: | Englisch |
| Fachgebiet (DDC): | 530: Physik |
| Zusammenfassung: | Intrinsic photogeneration of charge carriers in organic semiconductors is generally attributed to high energy ionization or exciton dissociation by a strong electric field. Here, high bulk photoconductivity is reported in pristine pentamethine cyanine films with photocurrent onset at the band‐edge of the organic semiconductor. Single‐layer cyanine diodes with selective hole and electron contacts show linear dependence of photocurrent with reverse voltage and light intensity. Numerical drift‐diffusion simulations reveal that the linear resistor behavior stems from low and unbalanced carrier mobilities giving rise to negative space charge. Slow bimolecular recombination kinetics of photoinduced charges obtained by time delayed charge extraction measurements show strongly reduced Langevin recombination with long carrier lifetime of the order of a millisecond. Such reduced charge carrier recombination puts forward a materials concept to be exploited in photodiodes and more generally in optoelectronic devices. |
| URI: | https://digitalcollection.zhaw.ch/handle/11475/16128 |
| Volltext Version: | Publizierte Version |
| Lizenz (gemäss Verlagsvertrag): | Lizenz gemäss Verlagsvertrag |
| Departement: | School of Engineering |
| Organisationseinheit: | Institute of Computational Physics (ICP) |
| Enthalten in den Sammlungen: | Publikationen School of Engineering |
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Wang, L., Jenatsch, S., Ruhstaller, B., Hinderling, C., Gesevičius, D., Hany, R., & Nüesch, F. (2018). Organic salt semiconductor with high photoconductivity and long carrier lifetime. Advanced Functional Materials, 28(16), 1705724. https://doi.org/10.1002/adfm.201705724
Wang, L. et al. (2018) ‘Organic salt semiconductor with high photoconductivity and long carrier lifetime’, Advanced Functional Materials, 28(16), p. 1705724. Available at: https://doi.org/10.1002/adfm.201705724.
L. Wang et al., “Organic salt semiconductor with high photoconductivity and long carrier lifetime,” Advanced Functional Materials, vol. 28, no. 16, p. 1705724, 2018, doi: 10.1002/adfm.201705724.
WANG, Lei, Sandra JENATSCH, Beat RUHSTALLER, Christian HINDERLING, Donatas GESEVIČIUS, Roland HANY und Frank NÜESCH, 2018. Organic salt semiconductor with high photoconductivity and long carrier lifetime. Advanced Functional Materials. 2018. Bd. 28, Nr. 16, S. 1705724. DOI 10.1002/adfm.201705724
Wang, Lei, Sandra Jenatsch, Beat Ruhstaller, Christian Hinderling, Donatas Gesevičius, Roland Hany, and Frank Nüesch. 2018. “Organic Salt Semiconductor with High Photoconductivity and Long Carrier Lifetime.” Advanced Functional Materials 28 (16): 1705724. https://doi.org/10.1002/adfm.201705724.
Wang, Lei, et al. “Organic Salt Semiconductor with High Photoconductivity and Long Carrier Lifetime.” Advanced Functional Materials, vol. 28, no. 16, 2018, p. 1705724, https://doi.org/10.1002/adfm.201705724.
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