Interdigitated electrode geometry effects on the performance of organic photoconductors for optical sensor applications

Jin Wook Jeong, Jin Woo Huh, Jeong Ik Lee, Hye Yong Chu, James Jungho Pak, Byeong Kwon Ju

Research output: Contribution to journalArticle

13 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)6343-6347
Number of pages5
JournalThin Solid Films
Volume518
Issue number22
DOIs
Publication statusPublished - 2010 Sep 1

Fingerprint

photosensors
Photoconducting materials
Butyric acid
photoconductors
Optical sensors
optical measuring instruments
Esters
Lighting
Electrodes
Semiconducting organic compounds
electrodes
Geometry
butyric acid
Spin coating
organic materials
geometry
esters
Butyric Acid
illumination
organic semiconductors

Keywords

  • Organic photodiodes
  • Organic photosensors
  • Photoconductors
  • Polymer sensors

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry
  • Metals and Alloys
  • Surfaces, Coatings and Films
  • Surfaces and Interfaces

Cite this

Interdigitated electrode geometry effects on the performance of organic photoconductors for optical sensor applications. / Jeong, Jin Wook; Huh, Jin Woo; Lee, Jeong Ik; Chu, Hye Yong; Pak, James Jungho; Ju, Byeong Kwon.

In: Thin Solid Films, Vol. 518, No. 22, 01.09.2010, p. 6343-6347.

Research output: Contribution to journalArticle

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