Polymer Nanocomposite Graphene Quantum Dots for High-Efficiency Ultraviolet Photodetector

Influence on photocurrent sensitivity of hydrothermally synthesized electrochemically active graphene quantum dots on conjugated polymer utilized for a novel single-layer device has been performed. Fabrications of high-performance ultraviolet photodetector by depositing the polypyrrole-graphene quantum dots (PPy-GQDs) active layer of the ITO electrode were exposed to an Ultraviolet (UV) source with 265 and 355 nm wavelengths for about 200 s, and we examined the time-dependent photoresponse. The excellent performance of GQDs was exploited as a light absorber, acting as an electron donor to improve the carrier concentration. PGC4 exhibits high photoresponsivity up to the 2.33 µA/W at 6 V bias and the photocurrent changes from 2.9 to 18 µA. The electrochemical measurement was studied using an electrochemical workstation. The cyclic voltammetry (CV) results show that the hysteresis loop is optically tunable with a UV light source with 265 and 355 nm at 0.1 to 0.5 V/s. The photocurrent response in PPy-GQDs devices may be applicable to optoelectronics devices.

[1]  M. Jiang,et al.  Construction of N-Sno2 Microwire/P-Ingan Heterojunction for Self-Powered and Broadband Photodetector , 2022, SSRN Electronic Journal.

[2]  Jaehyun Hur,et al.  Self-Powered High-Performance Ultraviolet C Photodetector Based on Poly(9-Vinyl Carbazole)/Sno2 Quantum Dot Heterojunction , 2022, SSRN Electronic Journal.

[3]  Kunpeng Hu,et al.  Temperature-dependent photodetection behavior of AlGaN/GaN-based ultraviolet phototransistors , 2022, Applied Physics Letters.

[4]  Liqiang Li,et al.  Recent Progress in Polymer-based Infrared Photodetectors , 2022, Journal of Materials Chemistry C.

[5]  N. Eedugurala,et al.  Broadband infrared photodetection using a narrow bandgap conjugated polymer , 2021, Science Advances.

[6]  B. Sajad,et al.  Fast response ZnO/PVA nanocomposite-based photodiodes modified by graphene quantum dots , 2019, Materials & Design.

[7]  Liangxu Lin,et al.  Biocompatibility and toxicity of graphene quantum dots for potential application in photodynamic therapy. , 2018, Nanomedicine.

[8]  B. Ghafary,et al.  Fabrication of high-performance UVC photodiodes by Al+3 ion adjustment in AZO/Si Heterostructures , 2018, Optical Materials.

[9]  P. Pham.  A Library of Doped-Graphene Images via Transmission Electron Microscopy , 2018, C.

[10]  F. Wudl,et al.  Solution-processed broadband polymer photodetectors with a spectral response of up to 2.5 μm by a low bandgap donor–acceptor conjugated copolymer , 2018 .

[11]  Girish M. Joshi,et al.  Influence of graphene quantum dots on electrical properties of polymer composites , 2017 .

[12]  Hui Peng,et al.  A solution-processed near-infrared polymer: PbS quantum dot photodetectors , 2017 .

[13]  Le-le Cao,et al.  Carbon quantum dots reinforced polypyrrole nanowire via electrostatic self-assembly strategy for high-performance supercapacitors , 2017 .

[14]  Bai Yang,et al.  Photoluminescence mechanism in graphene quantum dots: Quantum confinement effect and surface/edge state , 2017 .

[15]  Feng Tan,et al.  An electrochemical sensor based on molecularly imprinted polypyrrole/graphene quantum dots composite for detection of bisphenol A in water samples , 2016 .

[16]  S. Hannongbua,et al.  The effect of edges and shapes on band gap energy in graphene quantum dots , 2016 .

[17]  M. Momeni,et al.  Nanocomposite films of polyaniline/graphene quantum dots and its supercapacitor properties , 2016 .

[18]  Shean-Jen Chen,et al.  Elucidating Quantum Confinement in Graphene Oxide Dots Based On Excitation-Wavelength-Independent Photoluminescence. , 2016, The journal of physical chemistry letters.

[19]  T. Trung,et al.  Synthesis and Characterization of Polymeric Graphene Quantum Dots Based Nanocomposites for Humidity Sensing , 2016 .

[20]  Yibing Xie,et al.  Electrochemical capacitance of a carbon quantum dots–polypyrrole/titania nanotube hybrid , 2015 .

[21]  Sidong Lei,et al.  Graphene, graphene quantum dots and their applications in optoelectronics , 2015 .

[22]  Haluk Bingol,et al.  Graphene Quantum Dots-based Photoluminescent Sensor: A Multifunctional Composite for Pesticide Detection. , 2015, ACS applied materials & interfaces.

[23]  S. Lau,et al.  Photoresponse of polyaniline-functionalized graphene quantum dots. , 2015, Nanoscale.

[24]  Mingjun Li,et al.  Top-down strategy toward versatile graphene quantum dots for organic/inorganic hybrid solar cells , 2015 .

[25]  Tao Qian,et al.  Dopamine fluorescent sensors based on polypyrrole/graphene quantum dots core/shell hybrids. , 2015, Biosensors & bioelectronics.

[26]  S. Lau,et al.  Optically and electrically tunable graphene quantum dot–polyaniline composite films , 2014 .

[27]  P. Mukherjee,et al.  Effect of samarium nanoparticles on the electrical transport properties of polyaniline , 2014 .

[28]  Juan-Carlos Ferrer,et al.  Electrical Characterization of Photodetectors Based on Poly(3-hexylthiophene-2,5-diyl) Layers , 2014, Sensors.

[29]  P. Bairi,et al.  Graphene quantum dots from a facile sono-Fenton reaction and its hybrid with a polythiophene graft copolymer toward photovoltaic application. , 2013, ACS applied materials & interfaces.

[30]  Jian-Hua Wang,et al.  Preparation of excitation-independent photoluminescent graphene quantum dots with visible-light excitation/emission for cell imaging. , 2013, Chemistry.

[31]  Xingbin Yan,et al.  Superior Micro‐Supercapacitors Based on Graphene Quantum Dots , 2013 .

[32]  Jiale Xie,et al.  Graphene quantum-dot-doped polypyrrole counter electrode for high-performance dye-sensitized solar cells. , 2013, ACS applied materials & interfaces.

[33]  V. Agabekov,et al.  Synthesis, properties, and applications of polymeric nanocomposites , 2012 .

[34]  R. N. Mulik,et al.  Synthesis and Characterization of Polypyrrole (PPy) Thin Films , 2011 .

[35]  Yu‐Guo Guo,et al.  Synthesis of Monodispersed Wurtzite Structure CuInSe2 Nanocrystals and Their Application in High‐Performance Organic—Inorganic Hybrid Photodetectors. , 2010 .

[36]  Yu‐Guo Guo,et al.  Synthesis of monodispersed wurtzite structure CuInSe2 nanocrystals and their application in high-performance organic-inorganic hybrid photodetectors. , 2010, Journal of the American Chemical Society.

[37]  Tae Whan Kim,et al.  Enhancement of the photocurrent in ultraviolet photodetectors fabricated utilizing hybrid polymer-ZnO quantum dot nanocomposites due to an embedded graphene layer , 2010 .

[38]  H. Yadav,et al.  Study of metal/ZnO based thin film ultraviolet photodetectors: The effect of induced charges on the dynamics of photoconductivity relaxation , 2010 .

[39]  P. Kamat,et al.  Single‐Walled Carbon Nanotube–CdS Nanocomposites as Light‐Harvesting Assemblies: Photoinduced Charge‐Transfer Interactions , 2005 .

[40]  Marija Drndic,et al.  Efficient polymer-nanocrystal quantum-dot photodetectors , 2005 .

[41]  Li Ming. Huang,et al.  Structural influence on the electronic properties of methoxy substituted polyaniline/aluminum Schottky barrier diodes , 2003 .

[42]  David C. Martin,et al.  In vivo studies of polypyrrole/peptide coated neural probes. , 2003, Biomaterials.

[43]  Rupali Gangopadhyay and,et al.  Conducting Polymer Nanocomposites: A Brief Overview , 2000 .

[44]  S. Jenekhe,et al.  Electrochemical Properties and Electronic Structures of Conjugated Polyquinolines and Polyanthrazolines , 1996 .