Abstract
Abstract
Organic-inorganic hybrid heterojunction is very promising for low cost and high performance photodetection device application. We have fabricated a heterojunction composed of n-type inorganic TiO2 nanorod arrays and p-type organic semiconductor polymer [9,9-bis-(2-ethylhexyl)-9H-fluorene-2,7-diyl] (PFO). A peak of 0.32 mA W−1 was observed locating at 410 nm in spectral responsivity curve. The photocurrent response was rapid, repeatable as well as consistent. Under weak blue light (410 nm, 75 μW cm−2) irradiance, the rise time and decay time were observed to be 0.16 and 0.12 s, respectively. These results demonstrated that TiO2/PFO heterojuncton could bring prospect for the development of self-powered blue light photodetectors with high spectral selectivity.
Funder
Initial Foundation for Doctor Project of Liaocheng University
Natural Science Foundation of Shandong Province
Project of Science and Technology Plan for University of Shandong Province
National Natural Science Foundation of China
Special Construction Project Fund for Shandong Province Taishan Scholars
Subject
Metals and Alloys,Polymers and Plastics,Surfaces, Coatings and Films,Biomaterials,Electronic, Optical and Magnetic Materials
Cited by
5 articles.
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