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Proceedings Paper

High performance organic ultraviolet photodetectors based on m-MTDATA
Author(s): Zhongli Zhao; Xiaofeng Bai ; Yubin Shang; Jikai Yang; Baozeng Li; De Song
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Paper Abstract

We demonstrate highly efficient organic ultraviolet photodetectors using 4,4’,4’’ -tris[3-methyl-pheny(phenyl) amino] triphenylamine (m-MTDATA) and aluminum Tris(8-Hydroxyquinolinate) Synonym Alq3). The optimized photodetector delivers a photocurrent of 1.40 mA/cm2 at10 V, corresponding to a response of 127 mA/W under an illumination of 375 nm UV light irradiation with an intensity of 10.5 mW/cm2 and a detectivity of 2.15×1011 cm Hz1/2 /W. The high response is attributed to the larger band offset at m-MTDATA/ Alq3 heterojunction, the suppression of radiative decay of m-MTDATA and efficient electron transfer from m-MTDATA to Alq3. The working mechanism of harvesting high performance is also discussed in detail.

Paper Details

Date Published: 20 February 2018
PDF: 5 pages
Proc. SPIE 10697, Fourth Seminar on Novel Optoelectronic Detection Technology and Application, 106970U (20 February 2018); doi: 10.1117/12.2309749
Show Author Affiliations
Zhongli Zhao, Changchun Univ. of Science and Technology (China)
Xiaofeng Bai , Science and Technology on Low-Light-Level Night Vision Lab. (China)
Yubin Shang, Science and Technology on Low-Light-Level Night Vision Lab. (China)
Jikai Yang, Science and Technology on Low-Light-Level Night Vision Lab. (China)
Baozeng Li, Changchun Univ. of Science and Technology (China)
De Song, Changchun Univ of Science and Technology (China)


Published in SPIE Proceedings Vol. 10697:
Fourth Seminar on Novel Optoelectronic Detection Technology and Application
Weiqi Jin; Ye Li, Editor(s)

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