Sahu, Satyajit ; Pal, Amlan J. (2007) Organic photodetectors based on graded heterostructure of donor and acceptor layers Materials Science and Engineering: C, 27 (4). pp. 746-749. ISSN 0928-4931
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/j.msec.2006.07.020
Abstract
We have fabricated and characterized photodetectors based on organic semiconductors. Concentration gradients of an electron-donor and an electron-acceptor were achieved between the two electrodes. Such gradients in the molecular scale, introduced via layer-by-layer electrostatic assembly, provided an extended region for exciton dissociation and bicontinuous pathways for carrier transport to the opposite electrodes. Results in the graded heterostructures have been compared with bulk-heterojunction devices.
Item Type: | Article |
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Source: | Copyright of this article belongs to Elsevier Science. |
Keywords: | Organic Photodetectors; Donor/Acceptor Interfaces; Concentration Gradient; Exciton Dissociation; Carrier Transport |
ID Code: | 65805 |
Deposited On: | 19 Oct 2011 07:22 |
Last Modified: | 19 Oct 2011 07:22 |
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