Impact of Rolled Graphene Oxide Grown on Polyaniline for Photodetection: Future Challenging Opto-Device
Source abstract
Abstract
Rolled graphene oxide (roll-GO) with anew morphological properties than normal graphene is synthesized using modified Hummer. Then, the roll-GO/PANI composite is prepared through the adsorption of roll-GO on the surface of the PANI film, that performed through the oxidative polymerization method. The developed composite displays a small bandgap of 1.9 eV and shows a high optical property extends through a wide optical region from UV to IR regions. The chemical structure and function groups are confirmed using the XRD and FTIR. The roll-GO/PANI composite was investigated as a photodetector. The effects of different irradiation light conditions and the monochromatic wavelengths were tested through the measurements of the produced current density, Jph. The optical photon response exhibited excellent light sensitivity of the photodetector. The Jph enhanced highly under light (0.34 mA·cm−2) compared to dark conditions (0.007 mA·cm−2). Jph reached 0.24, 0.23, 0.14, and 0.09 mA·cm−2 under 340, 440, 540, and 730 nm, respectively. The photodetector detectivity (D) and photoresponsivity (R) are found to equal 0.45 × 109 Jones and 2.25 mA·W−1, respectively.
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Research context
OpenAlex topics: Conducting polymers and applications · Electrochemical sensors and biosensors · Gas Sensing Nanomaterials and Sensors
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Physics, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
Nanophotonics and Applications Lab, Physics Department, Faculty of Science, Beni-Suef University, Beni-Suef 62514, Egypt
TH-PPM Group, Physics Department, Faculty of Science, Beni-Suef University, Beni-Suef 62514, Egypt
Advanced Functional Materials & Optoelectronic Laboratory (AFMOL), Department of Physics, Faculty of Science, King Khalid University, Abha 61413, Saudi Arabia
Department of Chemistry and University Centre for Research & Development, Chandigarh University, Mohali 140413, Punjab, India
Department of Physics, Khalifa University of Science and Technology, Abu Dhabi 127788, United Arab Emirates
Nanomaterials Science Research Laboratory, Chemistry Department, Faculty of Science, Beni-Suef University, Beni-Suef 62514, Egypt
Funding
Deanship of Scientific Research at Princess Nourah bint Abdulrahman University
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