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Dai X, Wu L, Yu L, Yu Z, Ma F, Zhang Y, Yang Y, Sun J, Lu M. Sub-bandgap near-infrared photovoltaic response in Au/Al 2O 3/n-Si metal-insulator-semiconductor structure by plasmon-enhanced internal photoemission. NANOSCALE RESEARCH LETTERS 2023; 18:33. [PMID: 36881340 DOI: 10.1186/s11671-023-03818-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 03/02/2023] [Indexed: 05/24/2023]
Abstract
Silicon sub-bandgap near-infrared (NIR) (λ > 1100 nm) photovoltaic (PV) response by plasmon-enhanced internal photoemission was investigated. The Si sub-bandgap NIR PV response, which remains unexploited in Schottky junction-like solar cell device, was examined using nanometer sized Au/Al2O3/n-Si junction arrays. This kind of metal-insulator-semiconductor structure was similar in functionality to Schottky junction in NIR absorption, photo-induced charge separation and collection. It showed that NIR absorption increased steadily with increasing volume of Au nanoparticles (NPs) till a saturation was reached. Simulation results indicated the formation of localized surface plasmon on the surfaces of Au NPs, which was correlated well with the observed NIR absorption. On the other hand, the NIR PV response was found sensitive to the amount and size of Au NPs and thickness of Al2O3. Chemical and field-effect passivation of n-Si by using Al2O3 and SiO2 were used to optimize the NIR PV response. In the current configuration, the best PV conversion efficiency was 0.034% at λ = 1319 nm under illumination power of 0.1 W/cm2.
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Affiliation(s)
- Xiyuan Dai
- Department of Optical Science and Engineering, and Shanghai Ultra-Precision Optical Manufacturing Engineering Center, Fudan University, Shanghai, 200433, China
| | - Li Wu
- Department of Optical Science and Engineering, and Shanghai Ultra-Precision Optical Manufacturing Engineering Center, Fudan University, Shanghai, 200433, China
| | - Liang Yu
- Department of Optical Science and Engineering, and Shanghai Ultra-Precision Optical Manufacturing Engineering Center, Fudan University, Shanghai, 200433, China
| | - Zhiyuan Yu
- Department of Optical Science and Engineering, and Shanghai Ultra-Precision Optical Manufacturing Engineering Center, Fudan University, Shanghai, 200433, China
| | - Fengyang Ma
- Department of Optical Science and Engineering, and Shanghai Ultra-Precision Optical Manufacturing Engineering Center, Fudan University, Shanghai, 200433, China
| | - Yuchen Zhang
- Department of Optical Science and Engineering, and Shanghai Ultra-Precision Optical Manufacturing Engineering Center, Fudan University, Shanghai, 200433, China
| | - Yanru Yang
- Department of Optical Science and Engineering, and Shanghai Ultra-Precision Optical Manufacturing Engineering Center, Fudan University, Shanghai, 200433, China
| | - Jian Sun
- Department of Optical Science and Engineering, and Shanghai Ultra-Precision Optical Manufacturing Engineering Center, Fudan University, Shanghai, 200433, China.
- Yiwu Research Institute of Fudan University, Yiwu, 322000, Zhejiang, China.
| | - Ming Lu
- Department of Optical Science and Engineering, and Shanghai Ultra-Precision Optical Manufacturing Engineering Center, Fudan University, Shanghai, 200433, China.
- Yiwu Research Institute of Fudan University, Yiwu, 322000, Zhejiang, China.
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Makkar M, Prakash G, Viswanatha R. Crystal Facet Engineering of CoPt Quantum Dots for Diverse Colloidal Heterostructures. J Phys Chem Lett 2020; 11:6742-6748. [PMID: 32787223 DOI: 10.1021/acs.jpclett.0c01993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Precise control of crystal orientation, and specifically the exposed surface, is critical for the engineering of heterostructures. Here, using CoPt as a model system, we explore the energetics to expose suitable facets to promote the required heterostructure formation. Different heterostructures are grown ranging from core/shell structure, diffused interface, dumbbell structured dimers, and embedded island structures wherein these hybrids are fabricated via micro/macrolevel facet-selective growth. The reaction conditions used to achieve such diversity starting from the same seed offer insights into the growth mechanisms of these heterostructures. Such a microscopic understanding of surface chemistry paves the way for the design of new heterostructures with exciting properties.
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Karbalaei Akbari M, Hai Z, Wei Z, Detavernier C, Solano E, Verpoort F, Zhuiykov S. ALD-Developed Plasmonic Two-Dimensional Au-WO 3-TiO 2 Heterojunction Architectonics for Design of Photovoltaic Devices. ACS APPLIED MATERIALS & INTERFACES 2018; 10:10304-10314. [PMID: 29509409 DOI: 10.1021/acsami.7b17508] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Electrically responsive plasmonic devices, which benefit from the privilege of surface plasmon excited hot carries, have supported fascinating applications in the visible-light-assisted technologies. The properties of plasmonic devices can be tuned by controlling charge transfer. It can be attained by intentional architecturing of the metal-semiconductor (MS) interfaces. In this study, the wafer-scaled fabrication of two-dimensional (2D) TiO2 semiconductors on the granular Au metal substrate is achieved using the atomic layer deposition (ALD) technique. The ALD-developed 2D MS heterojunctions exhibited substantial enhancement of the photoresponsivity and demonstrated the improvement of response time for 2D Au-TiO2-based plasmonic devices under visible light illumination. To circumvent the undesired dark current in the plasmonic devices, a 2D WO3 nanofilm (∼0.7 nm) was employed as the intermediate layer on the MS interface to develop the metal-insulator-semiconductor (MIS) 2D heterostructure. As a result, 13.4% improvement of the external quantum efficiency was obtained for fabricated 2D Au-WO3-TiO2 heterojunctions. The impedancometry measurements confirmed the modulation of charge transfer at the 2D MS interface using MIS architectonics. Broadband photoresponsivity from the UV to the visible light region was observed for Au-TiO2 and Au-WO3-TiO2 heterostructures, whereas near-infrared responsivity was not observed. Consequently, considering the versatile nature of the ALD technique, this approach can facilitate the architecturing and design of novel 2D MS and MIS heterojunctions for efficient plasmonic devices.
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Affiliation(s)
- Mohammad Karbalaei Akbari
- Faculty of Bioscience Engineering , Ghent University Global Campus , 119 Songdomunhwa-ro , Yeonsu-gu, 21985 Incheon , South Korea
| | - Zhenyin Hai
- Faculty of Bioscience Engineering , Ghent University Global Campus , 119 Songdomunhwa-ro , Yeonsu-gu, 21985 Incheon , South Korea
| | - Zihan Wei
- Faculty of Bioscience Engineering , Ghent University Global Campus , 119 Songdomunhwa-ro , Yeonsu-gu, 21985 Incheon , South Korea
| | - Christophe Detavernier
- Department of Solid State Sciences , Ghent University , Krijgslaan 281/S1 , 9000 Ghent , Belgium
| | - Eduardo Solano
- Department of Solid State Sciences , Ghent University , Krijgslaan 281/S1 , 9000 Ghent , Belgium
- NCD Beamline , ALBA Synchrotron Light Source , Carrer de la Llum, 2-26 , 08290 Cerdanyola del Vallès , Spain
| | - Francis Verpoort
- Faculty of Bioscience Engineering , Ghent University Global Campus , 119 Songdomunhwa-ro , Yeonsu-gu, 21985 Incheon , South Korea
- National Research Tomsk Polytechnic University , Lenin Avenue 30 , 634050 Tomsk , Russian Federation
- Laboratory of Organometallics, Catalysis and Ordered Materials, State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Center for Chemical and Material Engineering , Wuhan University of Technology , 430070 Wuhan , P. R. China
| | - Serge Zhuiykov
- Faculty of Bioscience Engineering , Ghent University Global Campus , 119 Songdomunhwa-ro , Yeonsu-gu, 21985 Incheon , South Korea
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Farhat M, Kais S, Alharbi FH. Plasmonically Enhanced Schottky Photovoltaic Devices. Sci Rep 2017; 7:14253. [PMID: 29079810 PMCID: PMC5660259 DOI: 10.1038/s41598-017-14528-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Accepted: 10/11/2017] [Indexed: 11/29/2022] Open
Abstract
Solar-cells based on Schottky junctions between metals and semiconductors (without or with an intermediate insulator) are among the main possibilities towards economical photovoltaic conversion of the solar energy. This is mainly due to their structural simplicity and hence the ease of their realization. We propose here a new kind of light-harvesting devices using plasmonic nano-antenna gratings, that enhance the absorption of light over a broadband spectrum, and permit the reduction of thickness of the cell dramatically, with efficiency around 15% for 3 micrometers ultra-thin Silicon cell. We show that this technique may provide a new avenue in low cost fabrication of thin-film solar-cells.
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Affiliation(s)
- M Farhat
- Qatar Environment and Energy Research Institute (QEERI), Hamad Bin Khalifa University, Qatar Foundation, Doha, Qatar.
| | - S Kais
- Qatar Environment and Energy Research Institute (QEERI), Hamad Bin Khalifa University, Qatar Foundation, Doha, Qatar.,Department of Chemistry, Department of Physics and Birck Nanotechnology Center, Purdue University, West Lafayette, IN, 47907, USA
| | - F H Alharbi
- Qatar Environment and Energy Research Institute (QEERI), Hamad Bin Khalifa University, Qatar Foundation, Doha, Qatar.,College of Science and Engineering, Hamad Bin Khalifa University, Doha, Qatar
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Polarization Enhanced Charge Transfer: Dual-Band GaN-Based Plasmonic Photodetector. Sci Rep 2017; 7:40483. [PMID: 28084401 PMCID: PMC5234010 DOI: 10.1038/srep40483] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Accepted: 12/06/2016] [Indexed: 01/09/2023] Open
Abstract
Here, we report a dual-band plasmonic photodetector based on Ga-polar gallium nitride (GaN) for highly sensitive detection of UV and green light. We discover that decoration of Au nanoparticles (NPs) drastically increases the photoelectric responsivities by more than 50 times in comparition to the blank GaN photodetector. The observed behaviors are attributed to polarization enhanced charge transfer of optically excited hot electrons from Au NPs to GaN driven by the strong spontaneous polarization field of Ga-polar GaN. Moreover, defect ionization promoted by localized surface plasmon resonances (LSPRs) is also discussed. This novel type of photodetector may shed light on the design and fabrication of photoelectric devices based on polar semiconductors and microstructural defects.
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Deng X, Wang C, Zhou E, Huang J, Shao M, Wei X, Liu X, Ding M, Xu X. One-Step Solvothermal Method to Prepare Ag/Cu2O Composite With Enhanced Photocatalytic Properties. NANOSCALE RESEARCH LETTERS 2016; 11:29. [PMID: 26781287 PMCID: PMC4717129 DOI: 10.1186/s11671-016-1246-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Accepted: 01/06/2016] [Indexed: 06/05/2023]
Abstract
Ag/Cu2O microstructures with diverse morphologies have been successfully synthesized with different initial reagents of silver nitrate (AgNO3) by a facile one-step solvothermal method. Their structural and morphological characteristics were carefully investigated by means of X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM), and the experimental results showed that the morphologies transformed from microcubes for pure Cu2O to microspheres with rough surfaces for Ag/Cu2O. The photocatalytic activities were evaluated by measuring the degradation of methyl orange (MO) aqueous solution under visible light irradiation. The photocatalytic efficiencies of MO firstly increased to a maximum and then decreased with the increased amount of AgNO3. The experimental results revealed that the photocatalytic activities were significantly influenced by the amount of AgNO3 during the preparation process. The possible reasons for the enhanced photocatalytic activities of the as-prepared Ag/Cu2O composites were discussed.
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Affiliation(s)
- Xiaolong Deng
- School of Physics and Technology, University of Jinan, 336 Nanxin Zhuang West Road, Jinan, 250022, Shandong Province, People's Republic of China.
| | - Chenggang Wang
- School of Physics and Technology, University of Jinan, 336 Nanxin Zhuang West Road, Jinan, 250022, Shandong Province, People's Republic of China.
| | - E Zhou
- School of Physics and Technology, University of Jinan, 336 Nanxin Zhuang West Road, Jinan, 250022, Shandong Province, People's Republic of China.
| | - Jinzhao Huang
- School of Physics and Technology, University of Jinan, 336 Nanxin Zhuang West Road, Jinan, 250022, Shandong Province, People's Republic of China.
| | - Minghui Shao
- School of Physics and Technology, University of Jinan, 336 Nanxin Zhuang West Road, Jinan, 250022, Shandong Province, People's Republic of China.
| | - Xianqi Wei
- School of Physics and Technology, University of Jinan, 336 Nanxin Zhuang West Road, Jinan, 250022, Shandong Province, People's Republic of China.
| | - Xiaojing Liu
- School of Physics and Technology, University of Jinan, 336 Nanxin Zhuang West Road, Jinan, 250022, Shandong Province, People's Republic of China.
| | - Meng Ding
- School of Physics and Technology, University of Jinan, 336 Nanxin Zhuang West Road, Jinan, 250022, Shandong Province, People's Republic of China.
| | - Xijin Xu
- School of Physics and Technology, University of Jinan, 336 Nanxin Zhuang West Road, Jinan, 250022, Shandong Province, People's Republic of China.
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