Impact of Rolled Graphene Oxide Grown on Polyaniline for Photodetection: Future Challenging Opto-Device
نویسندگان
چکیده
Rolled graphene oxide (roll-GO) with anew morphological properties than normal is synthesized using modified Hummer. Then, the roll-GO/PANI composite prepared through adsorption of roll-GO on surface PANI film, that performed oxidative polymerization method. The developed displays a small bandgap 1.9 eV and shows high optical property extends wide region from UV to IR regions. chemical structure function groups are confirmed XRD FTIR. was investigated as photodetector. effects different irradiation light conditions monochromatic wavelengths were tested measurements produced current density, Jph. photon response exhibited excellent sensitivity Jph enhanced highly under (0.34 mA·cm?2) compared dark (0.007 mA·cm?2). reached 0.24, 0.23, 0.14, 0.09 mA·cm?2 340, 440, 540, 730 nm, respectively. photodetector detectivity (D) photoresponsivity (R) found equal 0.45 × 109 Jones 2.25 mA·W?1,
منابع مشابه
Highly Sensitive Amperometric Sensor Based on Gold Nanoparticles Polyaniline Electrochemically Reduced Graphene Oxide Nanocomposite for Detection of Nitric Oxide
A sensitive electrochemical sensor was fabricated for selective detection of nitric oxide (NO) based on electrochemically reduced graphene (ErGO)-polyaniline (PANI)-gold nanoparticles (AuNPs) nanocomposite. It was coated on a gold (Au) electrode through stepwise electrodeposition to form AuNPs-PANI-ErGO/Au electrode. The AuNPs-PANI-rGO nanocomposite was characterized by Field Emission Scanning ...
متن کاملHighly efficient enrichment of radionuclides on graphene oxide-supported polyaniline.
Graphene oxide-supported polyaniline (PANI@GO) composites were synthesized by chemical oxidation and were characterized by SEM, Raman and FT-IR spectroscopy, TGA, potentiometric titrations, and XPS. The characterization indicated that PANI can be grafted onto the surface of GO nanosheets successfully. The sorption of U(VI), Eu(III), Sr(II), and Cs(I) from aqueous solutions as a function of pH a...
متن کاملPolyaniline-grafted reduced graphene oxide for efficient electrochemical supercapacitors.
An alternative and effective route to prepare conducting polyaniline-grafted reduced graphene oxide (PANi-g-rGO) composite with highly enhanced properties is reported. In order to prepare PANi-g-rGO, amine-protected 4-aminophenol was initially grafted to graphite oxide (GO) via acyl chemistry where a concomitant partial reduction of GO occurred due to the refluxing and exposure of GO to thionyl...
متن کاملColloidal graphene oxide/polyaniline nanocomposite and its electrorheology.
A nanocomposite of colloidal graphene oxide (CGO) and polyaniline (PANI) was fabricated via in situ oxidation polymerization in the presence of CGO prepared via a modified Hummers method without a dopant, in which the graphene oxide was individually exfoliated. Its electrorheological properties and other physical characteristics were studied.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Coatings
سال: 2023
ISSN: ['2079-6412']
DOI: https://doi.org/10.3390/coatings13020437