Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/97567
Title: A rectifying diode with hysteresis effect from an electroactive hybrid of carbazole-functionalized polystyrene with CdTe nanocrystals via electrostatic interaction
Authors: Liu, Juqing
Qi, Xiaoying
Jiang, Ting
Lin, Zongqiong
Chen, Shufen
Xie, Linghai
Fan, Qu-Li
Ling, Qidan
Zhang, Hua
Huang, Wei
Keywords: DRNTU::Engineering::Materials
Issue Date: 2010
Source: Liu, J., Qi, X., Jiang, T., Lin, Z., Chen, S., Xie, L., et al. (2010). A rectifying diode with hysteresis effect from an electroactive hybrid of carbazole-functionalized polystyrene with CdTe nanocrystals via electrostatic interaction. Science China Chemistry, 53(11), 2324-2328.
Series/Report no.: Science China chemistry
Abstract: One of the strategies to tune current-voltage behaviors in organic diodes is to combine field-induced charge transfer processes with schottky barrier. According to this principle, a rectifying diode with hysteresis effect was fabricated utilizing a hybrid of electroactive polystyrene derivative covalently tethered with electron-donor carbazole moieties and electrostatic linked with electron-acceptor CdTe nanocrystals. Current-voltage characteristics show an electrical switching behavior with some hysteresis is only observed under a negative bias, with three orders of On/Off current ratio. The hybrid material based rectifier exhibits a rectification ratio of six and its maximum rectified output current is about 5 × 10−5 A. The asymmetric switching is interpreted as the result of both field induced charge transfer and schottky barrier, capable of reducing the misreading of cross-bar memory. Meanwhile, chemical doping of CdTe nanocrystals instead of physical blend favor their uniform dispersion in matrix and stable operation of device.
URI: https://hdl.handle.net/10356/97567
http://hdl.handle.net/10220/10519
ISSN: 1869-1870
DOI: 10.1007/s11426-010-4095-8
Rights: © 2010 Science China Press and Springer-Verlag Berlin Heidelberg.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:MSE Journal Articles

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