Chowdhury, A. ; Pal, A. J. (2001) Transient characteristics of light-emitting devices based on Langmuir-Blodgett films of a porphyrin derivative Synthetic Metals, 122 (2). pp. 243-247. ISSN 0379-6779
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/S0379-6779(01)00370-8
Abstract
Transient electroluminescence responses of light-emitting devices based on Langmuir-Blodgett films of a porphyrin derivative have been studied. A sequence of two rectangular voltage pulses separated by a delay has been applied. This has enabled us to study the effect of accumulated/trapped charges during the first pulse, while their relaxation dynamics have been studied during the second pulse. The separation time between the two pulses has been varied to study the relaxation of the accumulated charges in the device. The amplitude and polarity of the applied voltage pulse have been varied to study the barrier modification and space-charge limited electron injection in the device.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Accumulated Charges; Barrier Modification; Light-emitting Devices; Porphyrin Derivative; Space-charge Limited Current; Transient Electroluminescence |
| ID Code: | 65808 |
| Deposited On: | 18 Oct 2011 11:16 |
| Last Modified: | 18 Oct 2011 11:16 |
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