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Wu J, Lin H, Moss DJ, Loh KP, Jia B. Graphene oxide for photonics, electronics and optoelectronics. Nat Rev Chem 2023; 7:162-183. [PMID: 37117900 DOI: 10.1038/s41570-022-00458-7] [Citation(s) in RCA: 31] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/01/2022] [Indexed: 01/19/2023]
Abstract
Graphene oxide (GO) was initially developed to emulate graphene, but it was soon recognized as a functional material in its own right, addressing an application space that is not accessible to graphene and other carbon materials. Over the past decade, research on GO has made tremendous advances in material synthesis and property tailoring. These, in turn, have led to rapid progress in GO-based photonics, electronics and optoelectronics, paving the way for technological breakthroughs with exceptional performance. In this Review, we provide an overview of the optical, electrical and optoelectronic properties of GO and reduced GO on the basis of their chemical structures and fabrication approaches, together with their applications in key technologies such as solar energy harvesting, energy storage, medical diagnosis, image display and optical communications. We also discuss the challenges of this field, together with exciting opportunities for future technological advances.
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Mahalingam S, Omar A, Manap A, Rahim NA. Synthesis and applications of carbon-polymer composites and nanocomposite functional materials. FUNCTIONAL MATERIALS FROM CARBON, INORGANIC, AND ORGANIC SOURCES 2023:71-105. [DOI: 10.1016/b978-0-323-85788-8.00020-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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3
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Kumar A, Swami SK, Sharma R, Yadav S, Singh VN, Schneider JJ, Sinha OP, Srivastava R. A study on structural, optical, and electrical characteristics of perovskite CsPbBr 3 QD/2D-TiSe 2 nanosheet based nanocomposites for optoelectronic applications. Dalton Trans 2022; 51:4104-4112. [PMID: 35179542 DOI: 10.1039/d1dt03423e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Lead halide perovskite (CsPbBr3) quantum dots (QDs) and two-dimensional (2D) layered transition metal dichalcogenides have a significant application in solution-processed optoelectronic devices. Here, we report the oleylamine-assisted exfoliation of TiSe2 nanosheets (NSs) in dichlorobenzene with high concentration and stable dispersion. The functionalized TiSe2 NSs were used to synthesize the solution-processed perovskite CsPbBr3 QD/TiSe2 NS-based nanocomposite. The perovskite QDs and TiSe2 NSs were characterized by different techniques. The strong photoluminescence (PL) quenching and decreased lifetime decay of the nanocomposite indicates efficient charge transfer from photo-excited CsPbBr3 to TiSe2 NSs. The calculated charge-transfer rate constant (KET) from photo-excited CsPbBr3 to TiSe2 NSs increased from 1.50 × 108 to 2.79 × 108 s-1 in different concentrations of TiSe2 NSs (5 to 20 μg mL-1), respectively. Furthermore, the photo-currents of CsPbBr3 QD/TiSe2 NS nanocomposite devices were dramatically enhanced ∼2 times compared to pristine CsPbBr3 QD based devices, which supports the charge transfer and charge separation in nanocomposite devices.
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Affiliation(s)
- Ashish Kumar
- CSIR-National Physical Laboratory, Dr KS Krishnan Marg, New Delhi-110012, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Sanjay Kumar Swami
- CSIR-National Physical Laboratory, Dr KS Krishnan Marg, New Delhi-110012, India.
| | - Rohit Sharma
- Amity Institute of Nanotechnology, Amity University UP, Noida, UP, India.
| | - Sandeep Yadav
- Technische Universität Darmstadt, Eduard-Zintl-Institut für Anorganische and Physikalische Chemie, Alarich-Weiss-Str.12, D-64287 Darmstadt, Germany
| | - V N Singh
- CSIR-National Physical Laboratory, Dr KS Krishnan Marg, New Delhi-110012, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Joerg J Schneider
- Technische Universität Darmstadt, Eduard-Zintl-Institut für Anorganische and Physikalische Chemie, Alarich-Weiss-Str.12, D-64287 Darmstadt, Germany
| | - O P Sinha
- Amity Institute of Nanotechnology, Amity University UP, Noida, UP, India.
| | - Ritu Srivastava
- CSIR-National Physical Laboratory, Dr KS Krishnan Marg, New Delhi-110012, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
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Rajput V, Dayal P. Dynamical attributes of nanocatalyzed self-oscillating reactions via bifurcation analyses. J Chem Phys 2021; 155:064902. [PMID: 34391358 DOI: 10.1063/5.0060509] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Self-oscillating chemical reactions that undergo reaction-diffusion (RD) phenomena have shown great potential for designing stimuli-responsive materials. Belousov-Zhabotinsky (BZ) reactions are one such class of reactions that exhibit nonlinear chemical oscillations due to redox cycles of the metal-ion catalyst by virtue of Hopf bifurcation. Using bifurcation analyses, here we investigate the BZ reactions, catalyzed by 0D-2D catalytic nanomats and bare nanosheets, which are known to exhibit enhanced dynamic response due to catalysts' heterogeneity. Specifically, we incorporate the nanocatalysts' activity in the kinetic model of the BZ reactions and, subsequently, use catalysts' activity as the bifurcation parameter for analyses. By computing higher-order Lyapunov and frequency coefficients, we have revealed new oscillatory regimes in the bifurcation diagram, including re-entrant regions where sustained oscillations are unexpectedly suppressed, even with high catalytic activity. In addition, we also calculate the amplitude and frequency of BZ oscillations in each of these regions as a function of nanocatalysts' activity. We believe that our current findings can be used to harness the nonlinearity of RD-based dynamical systems to provide unique functionalities to active stimuli-response systems.
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Affiliation(s)
- Vandana Rajput
- Department of Chemical Engineering, Indian Institute of Technology Gandhinagar, Gandhinagar, Gujarat 382355, India
| | - Pratyush Dayal
- Department of Chemical Engineering, Indian Institute of Technology Gandhinagar, Gandhinagar, Gujarat 382355, India
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Babaev AA, Sokolova AV, Cherevkov SA, Berwick K, Baranov AV, Fedorov AV, Litvin AP. Beyond Charge Transfer: The Impact of Auger Recombination and FRET on PL Quenching in an rGO-QDs System. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:1623. [PMID: 34205727 PMCID: PMC8235269 DOI: 10.3390/nano11061623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 06/10/2021] [Accepted: 06/15/2021] [Indexed: 11/18/2022]
Abstract
PL intensity quenching and the PL lifetime reduction of fluorophores located close to graphene derivatives are generally explained by charge and energy transfer processes. Analyzing the PL from PbS QDs in rGO/QD systems, we observed a substantial reduction in average PL lifetimes with an increase in rGO content that cannot be interpreted solely by these two processes. To explain the PL lifetime dependence on the rGO/QD component ratio, we propose a model based on the Auger recombination of excitations involving excess holes left in the QDs after the charge transfer process. To validate the model, we conducted additional experiments involving the external engineering of free charge carriers, which confirmed the role of excess holes as the main QD PL quenching source. A mathematical simulation of the model demonstrated that the energy transfer between neighboring QDs must also be considered to explain the experimental data carefully. Together, Auger recombination and energy transfer simulation offers us an excellent fit for the average PL lifetime dependence on the component ratio of the rGO/QD system.
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Affiliation(s)
- Anton A. Babaev
- Center of Information Optical Technology, ITMO University, 197101 St. Petersburg, Russia; (A.V.S.); (S.A.C.); (A.V.B.); (A.V.F.); (A.P.L.)
| | - Anastasiia V. Sokolova
- Center of Information Optical Technology, ITMO University, 197101 St. Petersburg, Russia; (A.V.S.); (S.A.C.); (A.V.B.); (A.V.F.); (A.P.L.)
| | - Sergei A. Cherevkov
- Center of Information Optical Technology, ITMO University, 197101 St. Petersburg, Russia; (A.V.S.); (S.A.C.); (A.V.B.); (A.V.F.); (A.P.L.)
| | - Kevin Berwick
- School of Electrical and Electronic Engineering, TU Dublin, Grangegorman, Dublin 7, Ireland;
| | - Alexander V. Baranov
- Center of Information Optical Technology, ITMO University, 197101 St. Petersburg, Russia; (A.V.S.); (S.A.C.); (A.V.B.); (A.V.F.); (A.P.L.)
| | - Anatoly V. Fedorov
- Center of Information Optical Technology, ITMO University, 197101 St. Petersburg, Russia; (A.V.S.); (S.A.C.); (A.V.B.); (A.V.F.); (A.P.L.)
| | - Aleksandr P. Litvin
- Center of Information Optical Technology, ITMO University, 197101 St. Petersburg, Russia; (A.V.S.); (S.A.C.); (A.V.B.); (A.V.F.); (A.P.L.)
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Han T, Yang J, Wang Y, Cao Y, Wang Y, Chen HY, Zhu JJ. Boosted anodic electrochemiluminescence from blue-emissive sulfur quantum dots and its bioanalysis of glutathione. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.138281] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Alzakia FI, Tan SC. Liquid-Exfoliated 2D Materials for Optoelectronic Applications. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:e2003864. [PMID: 34105282 PMCID: PMC8188210 DOI: 10.1002/advs.202003864] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 01/19/2021] [Indexed: 05/14/2023]
Abstract
Two-dimensional (2D) materials have attracted tremendous research attention in recent days due to their extraordinary and unique properties upon exfoliation from the bulk form, which are useful for many applications such as electronics, optoelectronics, catalysis, etc. Liquid exfoliation method of 2D materials offers a facile and low-cost route to produce large quantities of mono- and few-layer 2D nanosheets in a commercially viable way. Optoelectronic devices such as photodetectors fabricated from percolating networks of liquid-exfoliated 2D materials offer advantages compared to conventional devices, including low cost, less complicated process, and higher flexibility, making them more suitable for the next generation wearable devices. This review summarizes the recent progress on metal-semiconductor-metal (MSM) photodetectors fabricated from percolating network of 2D nanosheets obtained from liquid exfoliation methods. In addition, hybrids and mixtures with other photosensitive materials, such as quantum dots, nanowires, nanorods, etc. are also discussed. First, the various methods of liquid exfoliation of 2D materials, size selection methods, and photodetection mechanisms that are responsible for light detection in networks of 2D nanosheets are briefly reviewed. At the end, some potential strategies to further improve the performance the devices are proposed.
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Affiliation(s)
- Fuad Indra Alzakia
- Department of Materials Science and EngineeringNational University of Singapore9 Engineering drive 1Singapore117574Singapore
| | - Swee Ching Tan
- Department of Materials Science and EngineeringNational University of Singapore9 Engineering drive 1Singapore117574Singapore
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Nguyen VC, Nimbalkar DB, Nam LD, Lee YL, Teng H. Photocatalytic Cellulose Reforming for H2 and Formate Production by Using Graphene Oxide-Dot Catalysts. ACS Catal 2021. [DOI: 10.1021/acscatal.1c00217] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Van-Can Nguyen
- Department of Chemical Engineering, National Cheng Kung University, Tainan 70101, Taiwan
| | - Dipak B. Nimbalkar
- Department of Chemical Engineering, National Cheng Kung University, Tainan 70101, Taiwan
| | - Le D. Nam
- Department of Chemical Engineering, National Cheng Kung University, Tainan 70101, Taiwan
| | - Yuh-Lang Lee
- Department of Chemical Engineering, National Cheng Kung University, Tainan 70101, Taiwan
- Hierarchical Green-Energy Materials (Hi-GEM) Research Center, National Cheng Kung University, Tainan 70101, Taiwan
| | - Hsisheng Teng
- Department of Chemical Engineering, National Cheng Kung University, Tainan 70101, Taiwan
- Hierarchical Green-Energy Materials (Hi-GEM) Research Center, National Cheng Kung University, Tainan 70101, Taiwan
- Center of Applied Nanomedicine, National Cheng Kung University, Tainan 70101, Taiwan
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Sharma S, Singh B, Bindra P, Panneerselvam P, Dwivedi N, Senapati A, Adholeya A, Shanmugam V. Triple-Smart Eco-Friendly Chili Anthracnose Control Agro-Nanocarrier. ACS APPLIED MATERIALS & INTERFACES 2021; 13:9143-9155. [PMID: 33567821 DOI: 10.1021/acsami.0c18797] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Pesticide leaching and soil contamination are major issues in the present agriculture formulations. Hence, here 2D graphene oxide in combination with cationic, anionic, or nonionic polymers were tested for runoff resistance and targeted release behavior. Cationic polymer supplemented the binding of rGO on leaf surface by 30% more than control and reduced off-target leaching in soil by 45% more than control. Further, to enhance the fruit rot control caused by Colletotrichum capsici in chili crop, the rGO was decorated with Cu2-xSe nanocrystals, which provided combined disease control with captan. The chitosan coating in the nanocomposite added targeted pH-responsive fungal inhibition behavior and could reduce the C. capsici growth by ∼1/2 times compared to captan control.
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Affiliation(s)
- Sandeep Sharma
- Institute of Nano Science and Technology, Habitat Centre, Phase- 10, Sector- 64, Mohali, Punjab 160062, India
| | - Bharat Singh
- TERI-Deakin Nanobiotechnology Centre, TERI Gram, The Energy and Resources Institute, Gwal Pahari, Gurugram, Haryana 122003, India
| | - Pulkit Bindra
- Institute of Nano Science and Technology, Habitat Centre, Phase- 10, Sector- 64, Mohali, Punjab 160062, India
| | | | - Neeraj Dwivedi
- TERI-Deakin Nanobiotechnology Centre, TERI Gram, The Energy and Resources Institute, Gwal Pahari, Gurugram, Haryana 122003, India
| | | | - Alok Adholeya
- TERI-Deakin Nanobiotechnology Centre, TERI Gram, The Energy and Resources Institute, Gwal Pahari, Gurugram, Haryana 122003, India
| | - Vijayakumar Shanmugam
- Institute of Nano Science and Technology, Habitat Centre, Phase- 10, Sector- 64, Mohali, Punjab 160062, India
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Lara-Canche AR, Garcia-Gutierrez DF, Torres-Gomez N, Reyes-Gonzalez JE, Bahena-Uribe D, Sepulveda-Guzman S, Hernandez-Calderon I, García Gutierrez DI. Solution processed nanostructured hybrid materials based on PbS quantum dots and reduced graphene oxide with tunable optoelectronic properties. NANOTECHNOLOGY 2021; 32:055604. [PMID: 33065556 DOI: 10.1088/1361-6528/abc209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Nanostructured hybrid materials (NHMs) are promising candidates to improve the performance of several materials in different applications. In the case of optoelectronic technologies, the ability to tune the optical absorption of such NHMs is an appealing feature. Along with the capacity to transform the absorbed light into charge carriers (CC), and their consequently efficient transport to the different electrodes. In this regard, NHM based on graphene-like structures and semiconductor QDs are appealing candidates, assuming the NHMs retain the light absorption and CC photogeneration properties of semiconductor QDs, and the excellent CC transport properties displayed by graphene-like materials. In the current work a solution-processed NHM using PbS quantum dots (QDs) and graphene oxide (GO) was fabricated in a layer-by-layer configuration by dip-coating. Afterwards, these NHMs were reduced by thermal or chemical methods. Reduction process had a direct impact on the final optoelectronic properties displayed by the NHMs. All reduced samples displayed a decrement in their resistivity, particularly the sample chemically reduced, displaying a 107 fold decrease; mainly attributed to N-doping in the reduced graphene oxide (rGO). The optical absorption coefficients also showed a dependence on the rGO's reduction degree, with reduced samples displaying higher values, and sample thermally reduced at 300 °C showing the highest absorption coefficient, due to the combined absorption of unaltered PbS QDs and the appearance of sp2 regions within rGO. The photogenerated current increased in most reduced samples, displaying the highest photocurrent the sample reduced at 400 °C, presenting a 2500-fold increment compared to the NHM before reduction, attributed to an enhanced CC transfer from PbS QDs to rGO, as a consequence of an improved band alignment between them. These results show clear evidence on how the optoelectronic properties of NHMs based on semiconductor nanoparticles and rGO, can be tuned based on their configuration and the reduction process parameters.
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Affiliation(s)
- A R Lara-Canche
- Universidad Autónoma de Nuevo León, UANL. Facultad de Ingeniería Mecánica y Eléctrica, FIME, AV. Universidad S/N Cd. Universitaria San Nicolás de los Garza, Nuevo León C.P 66450, México
- Uuniversidad Autónoma de Nuevo León, Centro de Innovación, Investigación y Desarrollo en Ingeniería y Tecnología, CIDIIT, Av. Alianza Sur 101, Apodaca, Nuevo León C.P 65000, México
| | - D F Garcia-Gutierrez
- Universidad Autónoma de Nuevo León, UANL. Facultad de Ingeniería Mecánica y Eléctrica, FIME, AV. Universidad S/N Cd. Universitaria San Nicolás de los Garza, Nuevo León C.P 66450, México
- Uuniversidad Autónoma de Nuevo León, Centro de Innovación, Investigación y Desarrollo en Ingeniería y Tecnología, CIDIIT, Av. Alianza Sur 101, Apodaca, Nuevo León C.P 65000, México
| | - N Torres-Gomez
- Universidad Autónoma de Nuevo León, UANL. Facultad de Ingeniería Mecánica y Eléctrica, FIME, AV. Universidad S/N Cd. Universitaria San Nicolás de los Garza, Nuevo León C.P 66450, México
- Uuniversidad Autónoma de Nuevo León, Centro de Innovación, Investigación y Desarrollo en Ingeniería y Tecnología, CIDIIT, Av. Alianza Sur 101, Apodaca, Nuevo León C.P 65000, México
| | - J E Reyes-Gonzalez
- Universidad Autónoma de Nuevo León, UANL. Facultad de Ingeniería Mecánica y Eléctrica, FIME, AV. Universidad S/N Cd. Universitaria San Nicolás de los Garza, Nuevo León C.P 66450, México
- Uuniversidad Autónoma de Nuevo León, Centro de Innovación, Investigación y Desarrollo en Ingeniería y Tecnología, CIDIIT, Av. Alianza Sur 101, Apodaca, Nuevo León C.P 65000, México
| | - D Bahena-Uribe
- Advanced Laboratory of Electron Nanoscopy, CINVESTAV, Ave. IPN 2508, 07360 Mexico City, Mexico
| | - S Sepulveda-Guzman
- Universidad Autónoma de Nuevo León, UANL. Facultad de Ingeniería Mecánica y Eléctrica, FIME, AV. Universidad S/N Cd. Universitaria San Nicolás de los Garza, Nuevo León C.P 66450, México
- Uuniversidad Autónoma de Nuevo León, Centro de Innovación, Investigación y Desarrollo en Ingeniería y Tecnología, CIDIIT, Av. Alianza Sur 101, Apodaca, Nuevo León C.P 65000, México
| | - I Hernandez-Calderon
- Advanced Laboratory of Electron Nanoscopy, CINVESTAV, Ave. IPN 2508, 07360 Mexico City, Mexico
- Physics Department, DNyN, CINVESTAV, Ave. IPN 2508, 07360 Mexico City, Mexico
| | - D I García Gutierrez
- Universidad Autónoma de Nuevo León, UANL. Facultad de Ingeniería Mecánica y Eléctrica, FIME, AV. Universidad S/N Cd. Universitaria San Nicolás de los Garza, Nuevo León C.P 66450, México
- Uuniversidad Autónoma de Nuevo León, Centro de Innovación, Investigación y Desarrollo en Ingeniería y Tecnología, CIDIIT, Av. Alianza Sur 101, Apodaca, Nuevo León C.P 65000, México
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Wu J, Jia L, Zhang Y, Qu Y, Jia B, Moss DJ. Graphene Oxide for Integrated Photonics and Flat Optics. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2006415. [PMID: 33258178 DOI: 10.1002/adma.202006415] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 11/05/2020] [Indexed: 05/15/2023]
Abstract
With superior optical properties, high flexibility in engineering its material properties, and strong capability for large-scale on-chip integration, graphene oxide (GO) is an attractive solution for on-chip integration of 2D materials to implement functional integrated photonic devices capable of new features. Over the past decade, integrated GO photonics, representing an innovative merging of integrated photonic devices and thin GO films, has experienced significant development, leading to a surge in many applications covering almost every field of optical sciences such as photovoltaics, optical imaging, sensing, nonlinear optics, and light emitting. This paper reviews the recent advances in this emerging field, providing an overview of the optical properties of GO as well as methods for the on-chip integration of GO. The main achievements made in GO hybrid integrated photonic devices for diverse applications are summarized. The open challenges as well as the potential for future improvement are also discussed.
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Affiliation(s)
- Jiayang Wu
- Optical Sciences Centre, Swinburne University of Technology, Hawthorn, VIC, 3122, Australia
| | - Linnan Jia
- Optical Sciences Centre, Swinburne University of Technology, Hawthorn, VIC, 3122, Australia
| | - Yuning Zhang
- Optical Sciences Centre, Swinburne University of Technology, Hawthorn, VIC, 3122, Australia
| | - Yang Qu
- Optical Sciences Centre, Swinburne University of Technology, Hawthorn, VIC, 3122, Australia
| | - Baohua Jia
- Centre for Translational Atomaterials, Swinburne University of Technology, Hawthorn, VIC, 3122, Australia
| | - David J Moss
- Optical Sciences Centre, Swinburne University of Technology, Hawthorn, VIC, 3122, Australia
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Photophysical Properties of Multilayer Graphene-Quantum Dots Hybrid Structures. NANOMATERIALS 2020; 10:nano10040714. [PMID: 32283817 PMCID: PMC7221764 DOI: 10.3390/nano10040714] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 04/05/2020] [Accepted: 04/07/2020] [Indexed: 12/02/2022]
Abstract
Photoelectrical and photoluminescent properties of multilayer graphene (MLG)–quantum dots (QD) hybrid structures have been studied. It has been shown that the average rate of transfer from QDs to the MLG can be estimated via photoinduced processes on the QDs’ surfaces. A monolayer of CdSe QDs can double the photoresponse amplitude of multilayer graphene, without influencing its characteristic photoresponse time. It has been found that efficient charge or energy transfer from QDs to MLG with a rate higher than 3 × 108 s−1 strongly inhibits photoinduced processes on the QD surfaces and provides photostability for QD-based structures.
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Su S, Zhang Y, Hu W, Zhang X, Ju D, Jia C, Liu J. Efficient and synergistic decolourization and nitrate removal using a single-chamber with a coupled biocathode-photoanode system. Bioelectrochemistry 2020; 132:107439. [DOI: 10.1016/j.bioelechem.2019.107439] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 12/05/2019] [Accepted: 12/05/2019] [Indexed: 01/17/2023]
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14
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Wang J, Gao Z, He S, Jin P, Ma D, Gao Y, Wang L, Han S. A universal growth strategy for DNA-programmed quantum dots on graphene oxide surfaces. NANOTECHNOLOGY 2020; 31:24LT02. [PMID: 32126544 DOI: 10.1088/1361-6528/ab7c42] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The emerging materials of semiconductor quantum dots/graphene oxide (QDs/GO) hybrid composites have recently attracted intensive attention in materials science and technology due to their potential applications in electronic and photonic devices. Here, a simple and universal strategy to produce DNA-programmed semiconductor quantum dots/graphene oxide (QDs/GO) hybrid composites with controllable sizes, shapes, compositions, and surface properties is reported. This proof-of-concept work successfully demonstrates the use of sulfhydryl modified single-stranded DNA (S-ssDNA) as a 'universal glue' which can adsorb onto GO easily and provide the growth sites to synthesize CdS QDs, CdSe QDs, CdTe QDs and CdTeSe QDs with distinctive sizes, shapes and properties. Also, adapting this method, other graphene oxide-based hybrid materials which are easily synthesized in aqueous solution, including oxides, core-shell structure QDs and metal nanocrystals, would be possible. This method provided a universal strategy for the synthesis and functional realization of graphene -based nanomaterials.
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Affiliation(s)
- Jidong Wang
- College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, People's Republic of China
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Chen WH, Zhou Z, Luo GF, Neumann E, Marjault HB, Stone D, Nechushtai R, Willner I. Photosensitized H 2 Evolution and NADPH Formation by Photosensitizer/Carbon Nitride Hybrid Nanoparticles. NANO LETTERS 2019; 19:9121-9130. [PMID: 31729224 DOI: 10.1021/acs.nanolett.9b04375] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The broadband C3N4 semiconductor absorbs in the UV region, λ = 330-380 nm, a feature limiting its application for light-to-energy conversion. The unique surface adsorption properties of C3N4 allow, however, the binding of a photosensitizer, operating in the visible-solar spectrum to the surface of C3N4. Coupling of the energy levels of the photosensitizer with the energy levels of C3N4 allows effective photoinduced electron-transfer quenching and subsequent charge separation in the hybrid structures. Two methods to adsorb a photosensitizer on the C3N4 nanoparticles are described. One is exemplified by the adsorption of Zn(II)-protoporphyrin IX on C3N4 using π-π interactions. The second method utilizes the specific binding interactions of single-stranded nucleic acids on C3N4 and involves the binding of a Ru(II)-tris-bipyridine-modified nucleic acid on the C3N4 nanoparticles. Effective electron-transfer quenching of the photoexcited photosensitizers by C3N4 proceeds in the two hybrid systems. The two hybrid photosystems induce the effective photosensitized reduction of N,N'-dimethyl-4,4'-bipyridinium, MV2+, to MV+•, in the presence of Na2EDTA as a sacrificial electron donor. The generation of MV+• is ca. 5-fold higher as compared to the formation of MV+• in the presence of the photosensitizer alone (in the absence of C3N4). The effective generation of MV+• in the photosystems is attributed to the efficient quenching of the photosensitizers, followed by effective charge separation of the electrons in the conduction band of C3N4 and the holes in the oxidized photosensitizer. The subsequent transfer of the conduction-band electrons to MV2+ and the oxidation of Na2EDTA by the oxidized photosensitizers lead to the effective formation of MV+•. The photogenerated MV+• by the two hybrid photosystems is used to catalyze H2 evolution in the presence of Pt nanoparticle catalysts and to mediate the reduction of NADP+ to NADPH, in the presence of ferredoxin-NADP+ reductase, FNR. The ability to couple the photogenerated NADPH to drive NADP+-dependent biocatalytic transformations is demonstrated.
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Affiliation(s)
- Wei-Hai Chen
- Institute of Chemistry and Center for Nanoscience and Nanotechnology , The Hebrew University of Jerusalem , Jerusalem 91904 , Israel
| | - Zhixin Zhou
- Institute of Chemistry and Center for Nanoscience and Nanotechnology , The Hebrew University of Jerusalem , Jerusalem 91904 , Israel
| | - Guo-Feng Luo
- Institute of Chemistry and Center for Nanoscience and Nanotechnology , The Hebrew University of Jerusalem , Jerusalem 91904 , Israel
| | - Ehud Neumann
- Institute of Life Science , The Hebrew University of Jerusalem , Jerusalem 91904 , Israel
| | | | - David Stone
- Institute of Chemistry and Center for Nanoscience and Nanotechnology , The Hebrew University of Jerusalem , Jerusalem 91904 , Israel
| | - Rachel Nechushtai
- Institute of Life Science , The Hebrew University of Jerusalem , Jerusalem 91904 , Israel
| | - Itamar Willner
- Institute of Chemistry and Center for Nanoscience and Nanotechnology , The Hebrew University of Jerusalem , Jerusalem 91904 , Israel
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16
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Ahmad A, Ullah S, Khan A, Ahmad W, Khan AU, Khan UA, Rahman AU, Yuan Q. Graphene oxide selenium nanorod composite as a stable electrode material for energy storage devices. APPLIED NANOSCIENCE 2019. [DOI: 10.1007/s13204-019-01204-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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17
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Mansour AS, Betiha M, Alrowaili Z, Abubshait S, Negm N. A facile synthetic approach and optical properties of AuNPs/CdSe tetrapod and AuNPs/CdSe@rGO nanocomposites. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.111493] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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18
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Lee Y, Kim H, Kim S, Whang D, Cho JH. Photogating in the Graphene-Dye-Graphene Sandwich Heterostructure. ACS APPLIED MATERIALS & INTERFACES 2019; 11:23474-23481. [PMID: 31136704 DOI: 10.1021/acsami.9b05280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
In this work, we developed an atomically thin (∼2.5 nm) heterostructure consisting of a monolayer rhodamine 6G (R6G) film as a photoactive layer that was sandwiched between graphene films functioning as channels (graphene-R6G-graphene, G-R-G). Through a comparison of results of both photocurrent measurements and chemically enhanced Raman scattering (CERS) experiments, we found that our G-R-G heterostructure exhibited ∼7 and ∼30 times better performance than R6G-attached single-graphene (R6G-graphene, R-G) and MoS2 devices, respectively; here, the CERS enhancement factor was highly correlated with the relative photoinduced Dirac voltage change. Furthermore, the photocurrent of the G-R-G device was found to be ∼40 times better than that of the R-G photodetector. The top graphene was highly operative in the monolayer, of which the performance is significantly deteriorated by fluorescence and tailored charge transfer efficiency with the increment of R6G film thickness. Overall, the responsivity of the G-R-G photodetector was ∼40 times higher than that of the R-G photodetector because of the more efficient carrier transfer between the organic dye and graphene induced by weaker π-π interactions between the top and bottom graphene channels in the former device. This atomically thin (∼2.5 nm) and highly photosensitive photodetector can be employed for post-Si-photodiode (PD) image sensors, single-photon detection devices, and optical communications.
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Affiliation(s)
- Youngbin Lee
- SKKU Advanced Institute of Nanotechnology (SAINT) , Sungkyunkwan University , Suwon 16419 , Korea
| | - Hyunmin Kim
- Division of Nano & Energy Convergence Research , Daegu Gyeongbuk Institute of Science and Technology (DGIST) , Daegu 42988 , Korea
| | - Soo Kim
- Research and Technology Center , Robert Bosch LLC , Cambridge , Massachusetts 02139 , United States
| | - Dongmok Whang
- SKKU Advanced Institute of Nanotechnology (SAINT) , Sungkyunkwan University , Suwon 16419 , Korea
| | - Jeong Ho Cho
- Department of Chemical and Biomolecular Engineering , Yonsei University , Seoul 03722 , Korea
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Prasanna Kumar DJ, Verma S, Jasuja K, Dayal P. Tuning the oscillatory dynamics of the Belousov–Zhabotinsky reaction using ruthenium nanoparticle decorated graphene. Phys Chem Chem Phys 2019; 21:3164-3173. [DOI: 10.1039/c8cp06766j] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Ruthenium nanoparticle decorated graphene nano-mats to enhance chemical oscillations in BZ reactions.
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Affiliation(s)
| | - Sachin Verma
- Department of Chemical Engineering
- Indian Institute of Technology Gandhinagar
- India
| | - Kabeer Jasuja
- Department of Chemical Engineering
- Indian Institute of Technology Gandhinagar
- India
| | - Pratyush Dayal
- Department of Chemical Engineering
- Indian Institute of Technology Gandhinagar
- India
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20
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Synergistic Enhancement of Hydrogen Production by ZIF-67 (Co) Derived Mo–Co–S Modified g-C3N4/rGO Photocatalyst. Catal Letters 2018. [DOI: 10.1007/s10562-018-2593-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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21
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Graphene oxide modified cobalt metallated porphyrin photocatalyst for conversion of formic acid from carbon dioxide. J CO2 UTIL 2018. [DOI: 10.1016/j.jcou.2018.07.008] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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22
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Hosseini F, Mohebbi S. Photocatalytic Oxidation Based on Modified Titanium Dioxide with Reduced Graphene Oxide and CdSe/CdS as Nanohybrid Materials. J CLUST SCI 2018. [DOI: 10.1007/s10876-017-1326-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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23
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Duan L, Bo Z, Chen X, Qi H, Yan J, Cen K. Ab initio characterization and experimental validation on the roles of oxygen-containing groups in graphene based formaldehyde sensors. Analyst 2018; 143:106-115. [DOI: 10.1039/c7an01051f] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The roles of oxygen-containing groups in formaldehyde sensing were investigated by ab initio characterization, in conjunction with experimental validation.
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Affiliation(s)
- Liangping Duan
- State Key Laboratory of Clean Energy Utilization
- Institute for Thermal Power Engineering
- College of Energy Engineering
- Zhejiang University
- Hangzhou
| | - Zheng Bo
- State Key Laboratory of Clean Energy Utilization
- Institute for Thermal Power Engineering
- College of Energy Engineering
- Zhejiang University
- Hangzhou
| | - Xia Chen
- State Key Laboratory of Clean Energy Utilization
- Institute for Thermal Power Engineering
- College of Energy Engineering
- Zhejiang University
- Hangzhou
| | - Hualei Qi
- State Key Laboratory of Clean Energy Utilization
- Institute for Thermal Power Engineering
- College of Energy Engineering
- Zhejiang University
- Hangzhou
| | - Jianhua Yan
- State Key Laboratory of Clean Energy Utilization
- Institute for Thermal Power Engineering
- College of Energy Engineering
- Zhejiang University
- Hangzhou
| | - Kefa Cen
- State Key Laboratory of Clean Energy Utilization
- Institute for Thermal Power Engineering
- College of Energy Engineering
- Zhejiang University
- Hangzhou
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24
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Liu J, Huang Q, Zhang K, Xu Y, Guo M, Qian Y, Huang Z, Lai F, Lin L. High White Light Photosensitivity of SnSe Nanoplate-Graphene Nanocomposites. NANOSCALE RESEARCH LETTERS 2017; 12:259. [PMID: 28395477 PMCID: PMC5383919 DOI: 10.1186/s11671-017-2021-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Accepted: 03/24/2017] [Indexed: 05/27/2023]
Abstract
The multi-functional nanomaterial constructed with more than one type of materials has gained a great attention due to its promising application. Here, a high white light photodetector prototype established with two-dimensional material (2D) and 2D nanocomposites has been fabricated. The 2D-2D nanocomposites were synthesized with SnSe nanoplate and graphene. The device shows a linear I-V characterization behavior in the dark and the resistance dramatically decreases under the white light. Furthermore, the photosensitivity of the device is as large as 1110% with a rapid response time, which is much higher than pristine SnSe nanostructure reported. The results shown here may provide a valuable guidance to design and fabricate the photodetector based on the 2D-2D nanocomposites even beyond the SnSe nanoplate-graphene nanocomposites.
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Affiliation(s)
- Jinyang Liu
- College of Physics and Energy, Fujian Normal University, Fuzhou, 350117 People’s Republic of China
- Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials, Fuzhou, 350117 People’s Republic of China
- Fujian Provincial Collaborative Innovation Center for Optoelectronic Semiconductors and Efficient Devices, Xiamen, 361005 People’s Republic of China
| | - Qingqing Huang
- College of Physics and Energy, Fujian Normal University, Fuzhou, 350117 People’s Republic of China
| | - Kun Zhang
- Center for Micro- and Nanoscale Research and Fabrication, University of Science and Technology of China, Hefei, Anhui 230026 People’s Republic of China
| | - Yangyang Xu
- College of Physics and Energy, Fujian Normal University, Fuzhou, 350117 People’s Republic of China
- Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials, Fuzhou, 350117 People’s Republic of China
- Fujian Provincial Collaborative Innovation Center for Optoelectronic Semiconductors and Efficient Devices, Xiamen, 361005 People’s Republic of China
| | - Mingzhu Guo
- College of Physics and Energy, Fujian Normal University, Fuzhou, 350117 People’s Republic of China
| | - Yongqiang Qian
- College of Physics and Energy, Fujian Normal University, Fuzhou, 350117 People’s Republic of China
| | - Zhigao Huang
- College of Physics and Energy, Fujian Normal University, Fuzhou, 350117 People’s Republic of China
- Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials, Fuzhou, 350117 People’s Republic of China
- Fujian Provincial Collaborative Innovation Center for Optoelectronic Semiconductors and Efficient Devices, Xiamen, 361005 People’s Republic of China
| | - Fachun Lai
- College of Physics and Energy, Fujian Normal University, Fuzhou, 350117 People’s Republic of China
- Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials, Fuzhou, 350117 People’s Republic of China
- Fujian Provincial Collaborative Innovation Center for Optoelectronic Semiconductors and Efficient Devices, Xiamen, 361005 People’s Republic of China
| | - Limei Lin
- College of Physics and Energy, Fujian Normal University, Fuzhou, 350117 People’s Republic of China
- Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials, Fuzhou, 350117 People’s Republic of China
- Fujian Provincial Collaborative Innovation Center for Optoelectronic Semiconductors and Efficient Devices, Xiamen, 361005 People’s Republic of China
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25
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Datta D, Sarkar K, Mukherjee S, Meshik X, Stroscio MA, Dutta M. Graphene oxide and DNA aptamer based sub-nanomolar potassium detecting optical nanosensor. NANOTECHNOLOGY 2017; 28:325502. [PMID: 28718456 DOI: 10.1088/1361-6528/aa79e0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Quantum-dot (QD) based nanosensors are frequently used by researchers to detect small molecules, ions and different biomolecules. In this article, we present a sensor complex/system comprised of deoxyribonucleic acid (DNA) aptamer, gold nanoparticle and semiconductor QD, attached to a graphene oxide (GO) flake for detection of potassium. As reported herein, it is demonstrated that QD-aptamer-quencher nanosensor functions even when tethered to GO, opening the way to future applications where sensing can be accomplished simultaneously with other previously demonstrated applications of GO such as serving as a nanocarrier for drug delivery. Herein, it is demonstrated that the DNA based thrombin binding aptamer used in this study undergoes the conformational change needed for sensing even when the nanosensor complex is anchored to the GO. Analysis with the Hill equation indicates the interaction between aptamer and potassium follows sigmoidal Hill kinetics. It is found that the quenching efficiency of the optical sensor is linear with the logarithm of concentration from 1 pM to 100 nM and decreases for higher concentration due to unavailability of aptamer binding sites. Such a simple and sensitive optical aptasensor with minimum detection capability of 1.96 pM for potassium ion can also be employed in-vitro detection of different physiological ions, pathogens and disease detection methods.
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Affiliation(s)
- Debopam Datta
- Department of Electrical and Computer Engineering, University of Illinois at Chicago, 851 South Morgan Street, M/C 154, Chicago, IL 60607, United States of America
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26
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Effectiveness of Nd doping and graphene oxide modification on electrochemical performance of CdSe nanorod material. J IND ENG CHEM 2017. [DOI: 10.1016/j.jiec.2017.01.012] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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27
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Huang F, Ouyang S, Jia F, Cai C, Xu Z, Wu C, Ma Y, Wang M. Band-tunable photodetectors based on graphene/alloyed ZnxCd1−xS film hybrids. RSC Adv 2017. [DOI: 10.1039/c6ra26823d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We have achieved band-tunable photodetectors based on graphene/alloyed ZnxCd1–xS film hybrids with cut-off edge in spectra response gradually changed from 410 nm to 580 nm.
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Affiliation(s)
- Fan Huang
- School of Materials Science and Engineering
- Hefei University of Technology
- Hefei 230009
- P. R. China
| | - Sheng Ouyang
- School of Physical Science and Technology
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Feixiang Jia
- School of Materials Science and Engineering
- Hefei University of Technology
- Hefei 230009
- P. R. China
| | - Caoyuan Cai
- School of Materials Science and Engineering
- Hefei University of Technology
- Hefei 230009
- P. R. China
| | - Zhihao Xu
- School of Materials Science and Engineering
- Hefei University of Technology
- Hefei 230009
- P. R. China
| | - Congjun Wu
- School of Materials Science and Engineering
- Hefei University of Technology
- Hefei 230009
- P. R. China
| | - Yang Ma
- School of Materials Science and Engineering
- Hefei University of Technology
- Hefei 230009
- P. R. China
| | - Min Wang
- School of Materials Science and Engineering
- Hefei University of Technology
- Hefei 230009
- P. R. China
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28
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Rajesh R, Iyer SS, Ezhilan J, Kumar SS, Venkatesan R. Graphene oxide supported copper oxide nanoneedles: An efficient hybrid material for removal of toxic azo dyes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2016; 166:49-55. [PMID: 27208759 DOI: 10.1016/j.saa.2016.05.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2015] [Revised: 04/05/2016] [Accepted: 05/02/2016] [Indexed: 05/12/2023]
Abstract
Herein, we report a simple, one step synthesis of hybrid copper oxide nanoneedles on graphene oxide sheets (GO-CuONNs) through sonochemical method. The present method affords a facile mean for controlling effective concentration of the active CuO nanoneedles on the graphene oxide sheets, and also offers the necessary stability to the resulting GO-CuONNs structure for adsorption transformations.Furthermore, this hybrid GO-CuONNs is successfully employed in the removal of a series of hazardous ionic organic dyes namely coomassie brilliant blue, methylene blue, congo red and amidoblack 10B. Through careful investigation of the material, we found that the synergetic effect between CuONNs and GO play a significant role in the adsorption of all the dyes studied. The prepared hybrid material contains both hydrophobic and hydrophilic environment which is expected to enhance the electrostatic interaction between the adsorbent and the dye molecules, consequently favouring the adsorption process.
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Affiliation(s)
- Rajendiran Rajesh
- Department of Chemistry, Pondicherry University, Puducherry-605014, India
| | - Sahithya S Iyer
- Department of Chemistry, Pondicherry University, Puducherry-605014, India
| | - Jayabal Ezhilan
- Department of Chemistry, Pondicherry University, Puducherry-605014, India
| | - S Senthil Kumar
- Department of Chemistry, School of Advanced Sciences, VIT University, Vellore-632014, India.
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Li G, Liu L, Wu G, Chen W, Qin S, Wang Y, Zhang T. Self-Powered UV-Near Infrared Photodetector Based on Reduced Graphene Oxide/n-Si Vertical Heterojunction. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2016; 12:5019-5026. [PMID: 27273877 DOI: 10.1002/smll.201600835] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2016] [Revised: 04/12/2016] [Indexed: 06/06/2023]
Abstract
A novel self-powered photodetector based on reduced graphene oxide (rGO)/n-Si p-n vertical heterojunction with high sensitivity and fast response time is presented. The photodetector contains a p-n vertical heterojunction between a drop-casted rGO thin film and n-Si. Contacts between the semiconductor layer (rGO, n-Si) and source-drain Ti/Au electrodes allow efficient transfer of photogenerated charge carriers. The self-powered UV-near infrared photodetector shows high sensitivity toward a spectrum of light from 365 to 1200 nm. Under the 600 nm illumination (0.81 mW cm-2 ), the device has a photoresponsivity of 1.52 A W-1 , with fast response and recover time (2 ms and 3.7 ms), and the ON/OFF ratios exceed 104 when the power density reaches ≈2.5 mW cm-2 . The high photoresponse primarily arises from the built-in electric field formed at the interface of n-Si and rGO film. The effect of rGO thickness, rGO reduction level, and layout of rGO/n-Si effective contact area on device performance are also systematically investigated.
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Affiliation(s)
- Guanghui Li
- i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Ruoshui Road, Suzhou, 215123, China
| | - Lin Liu
- Department of Environmental Science, Xi'an Jiaotong-Liverpool University, 111 Ren'ai Road, Suzhou, 215123, China
| | - Guan Wu
- i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Ruoshui Road, Suzhou, 215123, China
| | - Wei Chen
- i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Ruoshui Road, Suzhou, 215123, China
| | - Sujie Qin
- Department of Environmental Science, Xi'an Jiaotong-Liverpool University, 111 Ren'ai Road, Suzhou, 215123, China
| | - Yi Wang
- C&N Intl. Co. Ltd, Beijing, 102206, China.
- Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China.
| | - Ting Zhang
- i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Ruoshui Road, Suzhou, 215123, China.
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Yaragalla S, Rajendran R, Jose J, AlMaadeed MA, Kalarikkal N, Thomas S. Preparation and characterization of green graphene using grape seed extract for bioapplications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 65:345-53. [DOI: 10.1016/j.msec.2016.04.050] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2016] [Revised: 03/14/2016] [Accepted: 04/14/2016] [Indexed: 12/26/2022]
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High- and Reproducible-Performance Graphene/II-VI Semiconductor Film Hybrid Photodetectors. Sci Rep 2016; 6:28943. [PMID: 27349692 PMCID: PMC4937183 DOI: 10.1038/srep28943] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Accepted: 06/06/2016] [Indexed: 11/13/2022] Open
Abstract
High- and reproducible-performance photodetectors are critical to the development of many technologies, which mainly include one-dimensional (1D) nanostructure based and film based photodetectors. The former suffer from a huge performance variation because the performance is quite sensitive to the synthesis microenvironment of 1D nanostructure. Herein, we show that the graphene/semiconductor film hybrid photodetectors not only possess a high performance but also have a reproducible performance. As a demo, the as-produced graphene/ZnS film hybrid photodetector shows a high responsivity of 1.7 × 107 A/W and a fast response speed of 50 ms, and shows a highly reproducible performance, in terms of narrow distribution of photocurrent (38–65 μA) and response speed (40–60 ms) for 20 devices. Graphene/ZnSe film and graphene/CdSe film hybrid photodetectors fabricated by this method also show a high and reproducible performance. The general method is compatible with the conventional planar process, and would be easily standardized and thus pay a way for the photodetector applications.
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Ali Tahir A, Ullah H, Sudhagar P, Asri Mat Teridi M, Devadoss A, Sundaram S. The Application of Graphene and Its Derivatives to Energy Conversion, Storage, and Environmental and Biosensing Devices. CHEM REC 2016; 16:1591-634. [PMID: 27230414 DOI: 10.1002/tcr.201500279] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Indexed: 11/07/2022]
Abstract
Graphene (GR) and its derivatives are promising materials on the horizon of nanotechnology and material science and have attracted a tremendous amount of research interest in recent years. The unique atom-thick 2D structure with sp(2) hybridization and large specific surface area, high thermal conductivity, superior electron mobility, and chemical stability have made GR and its derivatives extremely attractive components for composite materials for solar energy conversion, energy storage, environmental purification, and biosensor applications. This review gives a brief introduction of GR's unique structure, band structure engineering, physical and chemical properties, and recent energy-related progress of GR-based materials in the fields of energy conversion (e.g., photocatalysis, photoelectrochemical water splitting, CO2 reduction, dye-sensitized and organic solar cells, and photosensitizers in photovoltaic devices) and energy storage (batteries, fuel cells, and supercapacitors). The vast coverage of advancements in environmental applications of GR-based materials for photocatalytic degradation of organic pollutants, gas sensing, and removal of heavy-metal ions is presented. Additionally, the use of graphene composites in the biosensing field is discussed. We conclude the review with remarks on the challenges, prospects, and further development of GR-based materials in the exciting fields of energy, environment, and bioscience.
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Affiliation(s)
- Asif Ali Tahir
- Environment and Sustainability Institute (ESI) University of Exeter Penryn Campus, Penryn, Cornwall, TR10 9FE, UK
| | - Habib Ullah
- Environment and Sustainability Institute (ESI) University of Exeter Penryn Campus, Penryn, Cornwall, TR10 9FE, UK.
| | - Pitchaimuthu Sudhagar
- School of Chemistry and Chemical Engineering Queen's University Belfast David Keir Building, Belfast, BT9 5AG, UK.
| | - Mohd Asri Mat Teridi
- Solar Energy Research Institute National University of Malaysia, 43600, Bangi, Selangor, Malaysia
| | - Anitha Devadoss
- College of Engineering Swansea University, Singleton Park, Swansea, SA2 8PP, UK.
| | - Senthilarasu Sundaram
- Environment and Sustainability Institute (ESI) University of Exeter Penryn Campus, Penryn, Cornwall, TR10 9FE, UK
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Graphene-induced spatial charge separation for selective water splitting over TiO2 photocatalyst. CATAL COMMUN 2016. [DOI: 10.1016/j.catcom.2016.03.015] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Jiang G, Su Y, Li M, Hu J, Zhao B, Yang Z, Wei H. Synthesis and optoelectronic properties of reduced graphene oxide/InP quantum dot hybrids. RSC Adv 2016. [DOI: 10.1039/c6ra22858e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The rGO/InP QD hybrids have firstly been synthesized using a hot-injection method, which exhibit good photoelectric response and efficient electron transfer from InP QDs to rGO nanosheets.
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Affiliation(s)
- Guohua Jiang
- Key Laboratory for Thin Film and Microfabrication of the Ministry of Education
- Department of Micro/Nano Electronics
- School of Electronics, Information and Electrical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
| | - Yanjie Su
- Key Laboratory for Thin Film and Microfabrication of the Ministry of Education
- Department of Micro/Nano Electronics
- School of Electronics, Information and Electrical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
| | - Ming Li
- Key Laboratory for Thin Film and Microfabrication of the Ministry of Education
- Department of Micro/Nano Electronics
- School of Electronics, Information and Electrical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
| | - Jing Hu
- Key Laboratory for Thin Film and Microfabrication of the Ministry of Education
- Department of Micro/Nano Electronics
- School of Electronics, Information and Electrical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
| | - Bo Zhao
- Jiangsu Key Laboratory of Advanced Laser Materials and Devices
- School of Physics and Electronic Engineering
- Jiangsu Normal University
- Xuzhou 221116
- PR China
| | - Zhi Yang
- Key Laboratory for Thin Film and Microfabrication of the Ministry of Education
- Department of Micro/Nano Electronics
- School of Electronics, Information and Electrical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
| | - Hao Wei
- Key Laboratory for Thin Film and Microfabrication of the Ministry of Education
- Department of Micro/Nano Electronics
- School of Electronics, Information and Electrical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
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35
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Mishra A, Mohanty T. Structural and morphological study of magnetic Fe3O4/ reduced graphene oxide nanocomposites. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.matpr.2016.04.045] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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36
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Singh P, Nath P, Arun RK, Mandal S, Chanda N. Novel synthesis of a mixed Cu/CuO–reduced graphene oxide nanocomposite with enhanced peroxidase-like catalytic activity for easy detection of glutathione in solution and using a paper strip. RSC Adv 2016. [DOI: 10.1039/c6ra20882g] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Mixed copper nanocomposite, Cu/CuO–rGO is prepared through a novel one-step oxidation-reduction reaction between aqueous graphene oxide (GO) and copper(ii) chloride (CuCl2) solutions at ambient temperature and pressure.
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Affiliation(s)
- Preeti Singh
- Micro System Technology Laboratory
- CSIR-Central Mechanical Engineering Research Institute
- Durgapur 713209
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Peuli Nath
- Micro System Technology Laboratory
- CSIR-Central Mechanical Engineering Research Institute
- Durgapur 713209
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Ravi Kumar Arun
- Micro System Technology Laboratory
- CSIR-Central Mechanical Engineering Research Institute
- Durgapur 713209
- India
| | - Soumen Mandal
- Micro System Technology Laboratory
- CSIR-Central Mechanical Engineering Research Institute
- Durgapur 713209
- India
| | - Nripen Chanda
- Micro System Technology Laboratory
- CSIR-Central Mechanical Engineering Research Institute
- Durgapur 713209
- India
- Academy of Scientific and Innovative Research (AcSIR)
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37
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Yang Z, Xiao J, Wan JY, Liu ZG, Cao TT, Zhang WJ, Wang HX. Graphene oxide/carbon dot composite: a new photoelectrode material for photocurrent response enhancement. Phys Chem Chem Phys 2015; 17:32283-8. [PMID: 26584460 DOI: 10.1039/c5cp05616k] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Low-dimensional carbon nanocomposite-based architectures and anchoring zero-dimensional carbon dots on two-dimensional graphene sheets may provide an important approach to develop energy harvesting and conversion strategies. In this work, as a novel photoelectrode with a high photocurrent response performance based on a composite made with all carbon-based materials consisting of p-type graphene oxide (GO) and n-type nitrogen, sulfur co-doped carbon dot (NS-CD) has been prepared via the electrophoretic deposition approach. The photoelectrochemical measurement shows that the GO/NS-CD composite greatly suppresses the charge recombination and evidently enhances the photocurrent response activity. It is anticipated that this work may pave a valuable step for the further development of all carbon-based optoelectronic devices with excellent performance.
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Affiliation(s)
- Ze Yang
- Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials, College of Chemistry and Chemical Engineering, Hubei University, Wuhan, 430062, China.
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38
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Wang YF, Wang X, Li XF, Li DJ, Sun YW, Zhang XX. Enhanced Photocurrent Response of Graphene Nanosheets-SnO2 Nanocomposites via a Facile Hydrolysis Method. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.09.142] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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39
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Yin PT, Shah S, Chhowalla M, Lee KB. Design, synthesis, and characterization of graphene-nanoparticle hybrid materials for bioapplications. Chem Rev 2015; 115:2483-531. [PMID: 25692385 PMCID: PMC5808865 DOI: 10.1021/cr500537t] [Citation(s) in RCA: 345] [Impact Index Per Article: 38.3] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Perry T. Yin
- Department of Biomedical Engineering, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, United States
| | - Shreyas Shah
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, United States
| | - Manish Chhowalla
- Department of Materials Science and Engineering, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, United States
| | - Ki-Bum Lee
- Department of Biomedical Engineering, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, United States
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, United States
- Institute for Advanced Materials, Devices, and Nanotechnology (IAMDN), Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, United States
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40
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Wang W, Kang SZ, Wang D, Li X, Qin L, Mu J. Synergistic effect between eosin Y and rhodamine B on a photoelectrode coated with Pt nanoparticle-decorated graphene. RSC Adv 2015. [DOI: 10.1039/c5ra24178b] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A photoelectrochemical system containing eosin Y, rhodamine B and graphene loaded with Pt nanoparticles was fabricated. The synergistic effect between eosin Y and rhodamine B was explored using photoelectrochemical techniques.
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Affiliation(s)
- Wenjiu Wang
- School of Chemical and Environmental Engineering
- Shanghai Institute of Technology
- Shanghai 201418
- China
| | - Shi-Zhao Kang
- School of Chemical and Environmental Engineering
- Shanghai Institute of Technology
- Shanghai 201418
- China
| | - Dong Wang
- Key Laboratory of Molecular Nanostructure and Nanotechnology
- Institute of Chemistry
- Chinese Academy of Sciences
- Bejing National Laboratory for Molecular Sciences
- Beijing 100190
| | - Xiangqing Li
- School of Chemical and Environmental Engineering
- Shanghai Institute of Technology
- Shanghai 201418
- China
| | - Lixia Qin
- School of Chemical and Environmental Engineering
- Shanghai Institute of Technology
- Shanghai 201418
- China
| | - Jin Mu
- School of Chemical and Environmental Engineering
- Shanghai Institute of Technology
- Shanghai 201418
- China
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41
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Thangaraju D, Karthikeyan R, Prakash N, Moorthy Babu S, Hayakawa Y. Growth and optical properties of Cu2ZnSnS4 decorated reduced graphene oxide nanocomposites. Dalton Trans 2015; 44:15031-41. [DOI: 10.1039/c5dt01542a] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cu2ZnSnS4 (CZTS) and CZTS decorated rGO were synthesized and their optical properties were analyzed.
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Affiliation(s)
| | - Rajan Karthikeyan
- Graduate School of Science and Technology
- Shizuoka University
- Hamamatsu 432-8011
- Japan
| | - Natarajan Prakash
- Graduate School of Science and Technology
- Shizuoka University
- Hamamatsu 432-8011
- Japan
| | | | - Yasuhiro Hayakawa
- Research Institute of Electronics
- Shizuoka University
- Hamamatsu 432-8011
- Japan
- Graduate School of Science and Technology
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42
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Shangguan L, Zhu W, Xue Y, Liu S. Construction of photoelectrochemical thrombin aptasensor via assembling multilayer of graphene-CdS nanocomposites. Biosens Bioelectron 2014; 64:611-7. [PMID: 25314620 DOI: 10.1016/j.bios.2014.09.072] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2014] [Revised: 09/25/2014] [Accepted: 09/25/2014] [Indexed: 12/30/2022]
Abstract
A photoelectrochemical (PEC) aptasensor for highly sensitive and specific detection of thrombin was developed by using graphene–CdS nanocomposites multilayer as photoactive species and electroactive mediator hexaammineruthenium(III) chloride (Ru(NH(3))(6)(3+)) as signal enhancer. Graphene–CdS nanocomposites (G–CdS) were synthesized by one-pot reduction of oxide graphene and CdCl2 with thioacetamide. The photoactive multilayer was prepared by alternative assembly of the negatively charged 3-mercaptopropionic acid modified graphene–CdS nanocomposites (MPA-G–CdS) and the positively charged polyethylenimine (PEI) on ITO electrode. This layer-by-layer assembly method enhanced the stability and homogeneity of the photocurrent readout of G–CdS. Thrombin aptamer was covalently bound to the multilayer by using glutaraldehyde as cross-linking. Electroactive mediator (Ru(NH(3))(6)(3+)) could interact with the DNA phosphate backbone and thus facilitated the electron transfer between G–CdS multilayer and electrode and enhanced the photocurrent. Hybridizing of a long complementary DNA with thrombin aptamer could increase the adsorption amount of (Ru(NH(3))(6)(3+)), which in turn boosted the signal readout. In the presence of target thrombin, the affinity interaction between thrombin and its aptamer resulted in the long complementary DNA releasing from the G–CdS multilayer and decreasing of photocurrent signal. On the basis of G–CdS multilayer as the photoactive species, (Ru (NH(3))(6)(3+)) as an electroactive mediator, and aptamer as a recognition module, a high sensitive PEC aptasensor for thrombin detection was proposed. The thrombin aptasensor displayed a linear range from 2.0 pM to 600.0 pM and a detection limit of 1.0 pM. The present strategy provided a promising ideology for the future development of PEC biosensor.
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Affiliation(s)
- Li Shangguan
- Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 210096, PR China
| | - Wei Zhu
- Jingjiang People's Hospital, PR China
| | | | - Songqin Liu
- Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 210096, PR China; Suzhou Research Institute of Southeast University, PR China.
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43
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Stergiou A, Pagona G, Tagmatarchis N. Donor-acceptor graphene-based hybrid materials facilitating photo-induced electron-transfer reactions. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2014; 5:1580-9. [PMID: 25247140 PMCID: PMC4168901 DOI: 10.3762/bjnano.5.170] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2014] [Accepted: 08/22/2014] [Indexed: 05/28/2023]
Abstract
Graphene research and in particular the topic of chemical functionalization of graphene has exploded in the last decade. The main aim is to increase the solubility and thereby enhance the processability of the material, which is otherwise insoluble and inapplicable for technological applications when stacked in the form of graphite. To this end, initially, graphite was oxidized under harsh conditions to yield exfoliated graphene oxide sheets that are soluble in aqueous media and amenable to chemical modifications due to the presence of carboxylic acid groups at the edges of the lattice. However, it was obvious that the high-defect framework of graphene oxide cannot be readily utilized in applications that are governed by charge-transfer processes, for example, in solar cells. Alternatively, exfoliated graphene has been applied toward the realization of some donor-acceptor hybrid materials with photo- and/or electro-active components. The main body of research regarding obtaining donor-acceptor hybrid materials based on graphene to facilitate charge-transfer phenomena, which is reviewed here, concerns the incorporation of porphyrins and phthalocyanines onto graphene sheets. Through illustrative schemes, the preparation and most importantly the photophysical properties of such graphene-based ensembles will be described. Important parameters, such as the generation of the charge-separated state upon photoexcitation of the organic electron donor, the lifetimes of the charge-separation and charge-recombination as well as the incident-photon-to-current efficiency value for some donor-acceptor graphene-based hybrids, will be discussed.
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Affiliation(s)
- Anastasios Stergiou
- Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, 11635 Athens, Greece
| | - Georgia Pagona
- Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, 11635 Athens, Greece
| | - Nikos Tagmatarchis
- Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, 11635 Athens, Greece
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44
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Vempati S, Uyar T. Fluorescence from graphene oxide and the influence of ionic, π-π interactions and heterointerfaces: electron or energy transfer dynamics. Phys Chem Chem Phys 2014; 16:21183-203. [PMID: 25197977 DOI: 10.1039/c4cp03317e] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
2D crystals such as graphene and its oxide counterpart have sought good research attention for their application as well as fundamental interest. Especially graphene oxide (GO) is quite interesting because of its versatility and diverse application potential. However the mechanism of fluorescence from GO is under severe discussion. To explain the emission in general two interpretations were suggested, viz localization of sp(2) clusters and involvement of oxygeneous functional groups. Despite this disagreement, it should be acknowledged that the heterogeneous atomic structure, synthesis dependent and uncontrollable implantation of oxygen functional groups on the basal plane make such explanations more difficult. Nevertheless, a suitable explanation enhances the applicability of the material which also enables the design of novel materials. At this juncture we believe that given the complexity in understanding the emission mechanism it would be very useful to review the literature. In this perspective we juxtapose various results related to fluorescence and influencing factors so that a conclusive interpretation may be unveiled. Apparently, the existing interpretations have largely ignored the factors such as self-rolling, byproduct formation etc. Vis-a-vis previous reviews did not discuss the interfacial charge transfer across heterostructures and the implication on the optical properties of GO or reduced graphene oxide (rGO). Such analysis would be very insightful to determine the energetic location of sub band gap states. Moreover, ionic and π-π type interactions are also considered for their influence on emission properties. Apart from these, quantum dots, covalent modifications and nonlinear optical properties of GO and rGO were discussed for completeness. Finally we made concluding remarks with outlook.
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Affiliation(s)
- Sesha Vempati
- UNAM-National Nanotechnology Research Center, Bilkent University, Ankara, 06800, Turkey.
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45
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Li J, Niu L, Zheng Z, Yan F. Photosensitive graphene transistors. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2014; 26:5239-73. [PMID: 24715703 DOI: 10.1002/adma.201400349] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2014] [Revised: 02/11/2014] [Indexed: 05/23/2023]
Abstract
High performance photodetectors play important roles in the development of innovative technologies in many fields, including medicine, display and imaging, military, optical communication, environment monitoring, security check, scientific research and industrial processing control. Graphene, the most fascinating two-dimensional material, has demonstrated promising applications in various types of photodetectors from terahertz to ultraviolet, due to its ultrahigh carrier mobility and light absorption in broad wavelength range. Graphene field effect transistors are recognized as a type of excellent transducers for photodetection thanks to the inherent amplification function of the transistors, the feasibility of miniaturization and the unique properties of graphene. In this review, we will introduce the applications of graphene transistors as photodetectors in different wavelength ranges including terahertz, infrared, visible, and ultraviolet, focusing on the device design, physics and photosensitive performance. Since the device properties are closely related to the quality of graphene, the devices based on graphene prepared with different methods will be addressed separately with a view to demonstrating more clearly their advantages and shortcomings in practical applications. It is expected that highly sensitive photodetectors based on graphene transistors will find important applications in many emerging areas especially flexible, wearable, printable or transparent electronics and high frequency communications.
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Affiliation(s)
- Jinhua Li
- Department of Applied Physics, The Hong Kong Polytechnic University, Hong Kong, China
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46
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Jung MH, Chu MJ. Comparative experiments of graphene covalently and physically binding CdSe quantum dots to enhance the electron transport in flexible photovoltaic devices. NANOSCALE 2014; 6:9241-9249. [PMID: 24980616 DOI: 10.1039/c4nr02254h] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In this research, we prepared composite films via covalent coupling of CdSe quantum dots (QDs) to graphene through the direct binding of aryl radicals to the graphene surface. To compare the carrier transport with the CdSe aryl binding graphene film, we prepared CdSe pyridine capping graphene films through the pi-pi interactions of noncovalent bonds between the graphene and pyridine molecules. The photovoltaic devices were fabricated from the two hybrid films using the electrophoretic deposition method on flexible substrates. Even though the two hybrid films have the same amount of QDs and graphene, time-resolved fluorescence emission decay results show that the emission lifetime of the CdSe aryl group binding graphene film is significantly shorter than that of the pyridine capping CdSe-graphene. The quantum efficiency and photocurrent density of the device fabricated from CdSe aryl binding graphene were also higher than those of the device fabricated from pyridine capping CdSe-graphene. These results indicated that the carrier transport of the QD-graphene system is not related to the additive effect from the CdSe and graphene components but rather is a result of the unique interactions between the graphene and QDs. We could expect that these results can be useful in designing QD-graphene composite materials, which are applied in photovoltaic devices.
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Affiliation(s)
- Mi-Hee Jung
- Solar Cell Technology Research Section, IT Components and Materials Industry Technology Research Department, IT Materials and Components Laboratory, Electronics and Telecommunications Research Institute (ETRI), 218 Gajeong-no, Yuseong-gu, Daejeon 305-700, Republic of Korea.
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47
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Kong C, Min S, Lu G. Dye-Sensitized NiSx Catalyst Decorated on Graphene for Highly Efficient Reduction of Water to Hydrogen under Visible Light Irradiation. ACS Catal 2014. [DOI: 10.1021/cs5006844] [Citation(s) in RCA: 153] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Chao Kong
- State
Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou
Institute of Chemical Physics, Chinese Academy of Science, Lanzhou 730000, China
- University of Chinese Academy of Science, Beijing 10080, China
| | - Shixiong Min
- State
Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou
Institute of Chemical Physics, Chinese Academy of Science, Lanzhou 730000, China
- University of Chinese Academy of Science, Beijing 10080, China
| | - Gongxuan Lu
- State
Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou
Institute of Chemical Physics, Chinese Academy of Science, Lanzhou 730000, China
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48
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Li X, Zhao Y, Wu W, Chen J, Chu G, Zou H. Synthesis and characterizations of graphene–copper nanocomposites and their antifriction application. J IND ENG CHEM 2014. [DOI: 10.1016/j.jiec.2013.09.029] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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49
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Nguyen KT, Zhao Y. Integrated graphene/nanoparticle hybrids for biological and electronic applications. NANOSCALE 2014; 6:6245-6266. [PMID: 24752364 DOI: 10.1039/c4nr00612g] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The development of novel graphene/nanoparticle hybrid materials is currently the subject of tremendous research interest. The intrinsic exceptional assets of both graphene (including graphene oxide and reduced graphene oxide) and nanoparticles render their hybrid materials synergic properties that can be useful in various applications. In this feature review, we highlight recent developments in graphene/nanoparticle hybrids and their promising potential in electronic and biological applications. First, the latest advances in synthetic methods for the preparation of the graphene/nanoparticle hybrids are introduced, with the emphasis on approaches to (1) decorate nanoparticles onto two-dimensional graphene and (2) wrap nanoparticles with graphene sheets. The pros and cons of large-scale synthesis are also discussed. Then, the state-of-the-art of graphene/nanoparticle hybrids in electronic and biological applications is reviewed. For electronic applications, we focus on the advantages of using these hybrids in transparent conducting films, as well as energy harvesting and storage. Biological applications, electrochemical biosensing, bioimaging, and drug delivery using the hybrids are showcased. Finally, the future research prospects and challenges in this rapidly developing area are discussed.
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Affiliation(s)
- Kim Truc Nguyen
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371 Singapore.
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50
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Zhao Y, Wei X, Wang Y, Luo F. One-pot twelve tungsten phosphate acid assisted electrochemical synthesis of WO3-decorated graphene sheets for high-efficiency UV-light-driven photocatalysis. Chem Phys Lett 2014. [DOI: 10.1016/j.cplett.2014.05.043] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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