1
|
Premkumar S, Nataraj D, Bharathi G, Ramya S, Thangadurai TD. Highly Responsive Ultraviolet Sensor Based on ZnS Quantum Dot Solid with Enhanced Photocurrent. Sci Rep 2019; 9:18704. [PMID: 31822730 PMCID: PMC6904578 DOI: 10.1038/s41598-019-55097-8] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Accepted: 11/19/2019] [Indexed: 11/11/2022] Open
Abstract
Detection of visible blind UV radiation is not only interesting but also of technologically important. Herein, we demonstrate the efficient detection of UV radiation by using cluster like ZnS quantum dot solid nanostructures prepared by simple reflux condensation technique. The short-chain ligand 3-mercaptopropionic acid (MPA) involved in the synthesis lead to the cluster like formation of ZnS quantum dots into solids upon prolonged synthesis conditions. The ZnS QD solid formation resulted in the strong delocalization of electronic wave function between the neighboring quantum dots. It increases the photocurrent value, which can be further confirmed by the decrease in the average lifetime values from 64 to 4.6 ns upon ZnS cluster like QD solid formation from ZnS QDs. The ZnS quantum dot solid based UV sensor shows good photocurrent response and a maximum responsivity of 0.31 (A/W) at a wavelength of 390 nm, is not only competitive when compared with previous reports but also better than ZnS and metal oxide-based photodetectors. The device exhibits a high current value under low-intensity UV light source and an on/off ratio of IUV/Idark = 413 at zero biasing voltage with a fast response. Further, photocurrent device has been constructed using ZnS quantum dot solid nanostructures with graphene hybrids as an active layer to improve the enhancement of photoresponsivity.
Collapse
Affiliation(s)
- Sellan Premkumar
- Quantum Materials and Devices Laboratory, Department of Physics, Bharathiar University, Coimbatore, Tamil Nadu, 641046, India.
- School of Chemistry and Chemical Engineering, Tianjin Polytechnic University, Tianjin, 300387, China.
- Tianjin Key Laboratory of Green Chemistry and Process Engineering, and School of Material Science and Engineering, Tianjin Polytechnic University, Tianjin, 300387, China.
| | - Devaraj Nataraj
- Quantum Materials and Devices Laboratory, Department of Physics, Bharathiar University, Coimbatore, Tamil Nadu, 641046, India.
- UGC-CPEPA Centre for Advanced Studies in Physics for the development of Solar Energy Materials and Devices, Department of Physics, Bharathiar University, Coimbatore, Tamil Nadu, 641046, India.
| | - Ganapathi Bharathi
- Quantum Materials and Devices Laboratory, Department of Physics, Bharathiar University, Coimbatore, Tamil Nadu, 641046, India
| | - Subramaniam Ramya
- Quantum Materials and Devices Laboratory, Department of Physics, Bharathiar University, Coimbatore, Tamil Nadu, 641046, India
| | - T Daniel Thangadurai
- Department of Nanoscience and Technology, Sri Ramakrishna Engineering College, Coimbatore, Tamil Nadu, 641022, India
| |
Collapse
|
2
|
Que CJ, Mo CJ, Li ZQ, Zhang GL, Zhu QY, Dai J. Perovskite-Like Organic-Inorganic Hybrid Lead Iodide with a Large Organic Cation Incorporated within the Layers. Inorg Chem 2017; 56:2467-2472. [PMID: 28218540 DOI: 10.1021/acs.inorgchem.6b02550] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A great effort has been made to investigate 2D perovskites to improve the stability and controllability in the fabrication of photoelectronic devices. As far as we know, only small organic cations such as methylammonium can incorporate into the multilayered perovskite structure except the cations sandwiched between the inorganic layers. We report here a new layered lead iodide, (H2Aepz)3Pb4I14 (1), where larger organic cations, bis-protonated 2-(2-aminoethyl)pyrazole (Aepz), not only were sandwiched between the inorganic layers but also were incorporated within the perovskite-like PbI layered structure. Another 2D compound, (H2Aepz)PbI4 (2), was also prepared that was a one-layer perovskite. A simple Schottky device was prepared to investigate the photoelectroresponsive properties of the compounds in comparison with that of a typical organic-inorganic hybrid perovskite. In general, the energy gap is decreased with an increase in the perovskite layers, but the band gap of two-layered 1 is larger than that of one-layered 2. The photocurrent densities of the compounds are in the order of 1 < 2 < (CH3NH3)PbI3, which is discussed based on the crystal structures and band energy gaps.
Collapse
Affiliation(s)
- Chen-Jie Que
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University , Suzhou 215123, P. R. China
| | - Chong-Jiao Mo
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University , Suzhou 215123, P. R. China
| | - Zhao-Qi Li
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University , Suzhou 215123, P. R. China
| | - Guang-Lin Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University , Suzhou 215123, P. R. China
| | - Qin-Yu Zhu
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University , Suzhou 215123, P. R. China
| | - Jie Dai
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University , Suzhou 215123, P. R. China
| |
Collapse
|
3
|
Kim Y, Kim SJ, Cho SP, Hong BH, Jang DJ. High-performance ultraviolet photodetectors based on solution-grown ZnS nanobelts sandwiched between graphene layers. Sci Rep 2015. [PMID: 26197784 PMCID: PMC4510574 DOI: 10.1038/srep12345] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Ultraviolet (UV) light photodetectors constructed from solely inorganic semiconductors still remain unsatisfactory because of their low electrical performances. To overcome this limitation, the hybridization is one of the key approaches that have been recently adopted to enhance the photocurrent. High-performance UV photodetectors showing stable on-off switching and excellent spectral selectivity have been fabricated based on the hybrid structure of solution-grown ZnS nanobelts and CVD-grown graphene. Sandwiched structures and multilayer stacking strategies have been applied to expand effective junction between graphene and photoactive ZnS nanobelts. A multiply sandwich-structured photodetector of graphene/ZnS has shown a photocurrent of 0.115 mA under illumination of 1.2 mWcm(-2) in air at a bias of 1.0 V, which is higher 10(7) times than literature values. The multiple-sandwich structure of UV-light sensors with graphene having high conductivity, flexibility, and impermeability is suggested to be beneficial for the facile fabrication of UV photodetectors with extremely efficient performances.
Collapse
Affiliation(s)
- Yeonho Kim
- Department of Chemistry, Seoul National University, Seoul 151-747, Korea
| | - Sang Jin Kim
- Department of Chemistry, Seoul National University, Seoul 151-747, Korea
| | - Sung-Pyo Cho
- National Center for Inter-University Research Facilities, Seoul National University, Seoul 151-747, Korea
| | - Byung Hee Hong
- Department of Chemistry, Seoul National University, Seoul 151-747, Korea
| | - Du-Jeon Jang
- Department of Chemistry, Seoul National University, Seoul 151-747, Korea
| |
Collapse
|
4
|
Zhang L, Chen L, Qi B, Yang G, Gong J. Synthesis of vertical aligned TiO2@polyaniline core–shell nanorods for high-performance supercapacitors. RSC Adv 2015. [DOI: 10.1039/c4ra10818c] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Ordered TiO2@polyaniline nanorods exhibiting high specific capacitance were prepared by a simple method. The specific capacitance retention of the product is over 85% after 1000 charge and discharge cycles at a current density of 10 A g−1.
Collapse
Affiliation(s)
- Li Zhang
- Key Laboratory of Polyoxometalates Science of Ministry of Education
- Northeast Normal University
- Changchun
- China
| | - Lei Chen
- School of Environment
- Northeast Normal University
- China
| | - Bin Qi
- Key Laboratory of Polyoxometalates Science of Ministry of Education
- Northeast Normal University
- Changchun
- China
| | - Guocheng Yang
- School of Chemistry and Life Science
- Changchun University of Technology
- Changchun
- China
| | - Jian Gong
- Key Laboratory of Polyoxometalates Science of Ministry of Education
- Northeast Normal University
- Changchun
- China
| |
Collapse
|
5
|
Yoo J, Pyo J, Je JH. Single inorganic-organic hybrid nanowires with ambipolar photoresponse. NANOSCALE 2014; 6:3557-3560. [PMID: 24598817 DOI: 10.1039/c3nr05910c] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We report for the first time single nanowires (NWs) with ambipolar (positive/negative) photoresponse that changes sign depending on the illumination wavelength. The single NWs were grown by the meniscus-guided method using inorganic (ZnO nanoparticles)-organic (PEDOT:PSS) hybrid materials. The ambipolar photoresponse of the single NWs enabled us to develop an unprecedented spectrum-discriminating NW photodetector array.
Collapse
Affiliation(s)
- Jewon Yoo
- X-ray Imaging Center, Department of Materials Science and Engineering, Pohang University of Science and Technology, Pohang, 790-784, Republic of Korea.
| | | | | |
Collapse
|
6
|
Game O, Singh U, Kumari T, Banpurkar A, Ogale S. ZnO(N)-Spiro-MeOTAD hybrid photodiode: an efficient self-powered fast-response UV (visible) photosensor. NANOSCALE 2014; 6:503-13. [PMID: 24232600 DOI: 10.1039/c3nr04727j] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Organic-inorganic hybrid photo-detectors with a self-sufficient mode of operation represent a research area of great current interest. In most efficient photodetectors and optoelectronic devices compound semiconductors containing toxic elements such as Cd, As, Te, S, Se etc. are used and these are also expensive. Hence there is also a rapidly growing interest in replacing these with environmentally friendly and earth-abundant materials. Herein, we report a facile solution-processed fabrication of a self-powered organic-inorganic hybrid photodetector using n-type oriented ZnO nanorods and p-type Spiro-MeOTAD semiconductor. ZnO is eco-friendly and earth-abundant, and Spiro-MeOTAD is non-hazardous. We show that the latter has far less toxicity than the toxic elements stated above. This visible blind UV photodetector shows high sensitivity (10(2)) and a UV/visible rejection ratio of 300. It also exhibits fast response times of τ(rise) ~ 200 μs and τ(fall) ~ 950 μs. Importantly, with a small modification of nitrogen incorporation in ZnO one can also realize a highly-sensitive self-powered visible light photodetector with at least 1000% (or higher) improvements in quality factors (photocurrent/sensitivity/response time) as compared to previously reported organic-inorganic hybrid photo-detectors based on metal-chalcogenides (CdS-PANI or CuInSe2-P3HT). Interestingly, the broadband sensitivity of such N:ZnO-Spiro-MeOTAD photodiode enables sensing of low intensity (~28 μW cm(-2)) ambient white light with a high photocurrent density of 120 nA cm(-2) making it an efficient ambient white light detector.
Collapse
Affiliation(s)
- Onkar Game
- Centre for Excellence in Solar Energy, Physical and Materials Chemistry Division, National Chemical Laboratory (CSIR-NCL), Pune 411 008, India
| | | | | | | | | |
Collapse
|
7
|
Dong Y, Feng C, Jiang P, Wang G, Li K, Miao H. Simple one-pot synthesis of ZnO/Ag heterostructures and the application in visible-light-responsive photocatalysis. RSC Adv 2014. [DOI: 10.1039/c3ra46655h] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A simple, mild and large-scale one-pot synthesis method for visible light active ZnO/Ag heterostructures was proposed.
Collapse
Affiliation(s)
- Yuming Dong
- Key Laboratory of Food Colloids and Biotechnology (Ministry of Education of China)
- School of Chemical and Material Engineering, Jiangnan University
- Wuxi 214122, P. R. China
| | - Cuiyun Feng
- Key Laboratory of Food Colloids and Biotechnology (Ministry of Education of China)
- School of Chemical and Material Engineering, Jiangnan University
- Wuxi 214122, P. R. China
| | - Pingping Jiang
- Key Laboratory of Food Colloids and Biotechnology (Ministry of Education of China)
- School of Chemical and Material Engineering, Jiangnan University
- Wuxi 214122, P. R. China
| | - Guangli Wang
- Key Laboratory of Food Colloids and Biotechnology (Ministry of Education of China)
- School of Chemical and Material Engineering, Jiangnan University
- Wuxi 214122, P. R. China
| | - Kun Li
- Key Laboratory of Food Colloids and Biotechnology (Ministry of Education of China)
- School of Chemical and Material Engineering, Jiangnan University
- Wuxi 214122, P. R. China
| | - Hongyan Miao
- Key Laboratory of Food Colloids and Biotechnology (Ministry of Education of China)
- School of Chemical and Material Engineering, Jiangnan University
- Wuxi 214122, P. R. China
| |
Collapse
|
8
|
Yang S, Cui X, Gong J, Deng Y. Synthesis of TiO2–polyaniline core–shell nanofibers and their unique UV photoresponse based on different photoconductive mechanisms in oxygen and non-oxygen environments. Chem Commun (Camb) 2013; 49:4676-8. [DOI: 10.1039/c3cc39157d] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
|