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Interdigitated Electrode Geometry Effects on the Performance of Organic Photoconductors for Optical Sensor Applications
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- Authors
- Jin Wook Jeong, Jin Woo Huh, Jeong Ik Lee, Hye Yong Chu, James Jungho Pak, Byeong Kwon Ju
- Issue Date
- 2010-08
- Citation
- Thin Solid Films, v.518, no.22, pp.6343-6347
- ISSN
- 0040-6090
- Publisher
- Elsevier
- Language
- English
- Type
- Journal Article
- Abstract
- This paper studies the electrical characteristics of solution-processed organic photosensors (OPSs) made from organic materials of poly-3-hexylthiophene (P3HT) and [6,6]-phenyl-C61 butyric acid methyl ester (PCBM), with four-type of interdigitated electrodes for achieving high photo-sensing performances. The thin layers of organic material are deposited by spin-coating methods. The current of the OPSs through the semiconductor organic films is measured under light intensities ranging from dark to 300 mW/cm2. At 10 V bias and 300 mW/cm2 illumination, the currents obtained from pristine P3HT and blended P3HT/PCBM, both spin-coated, are 6.9 × 10- 5 mA, and 3.6 × 10- 5 mA, respectively. Finally, in order to evaluate the response characteristics under illumination, the current characteristics of the OPS are measured as a function of time and results confirm good reproducibility and fast response times of the OPSs. © 2010 Elsevier B.V. All rights reserved.
- KSP Keywords
- Butyric acid, Current characteristics, Electrical characteristics, Fast Response, Interdigitated Electrode(IDE), Light intensity, Methyl ester, Organic films, Organic materials, Photo-sensing, Regioregular poly(3-hexylthiophene)