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摘要 :
Due to the rapid development of the solar thermal utilization industry, the research on the factors affecting the life of components is not thorough, especially because of the need of market development. The non-standard parts provided by the supplier are not clear in the quality measurement index of the whole machine product life cycle, the fine management of the supplier, the continuous improvement of the product quality and other parts of the evaluation index are refined, and the cost, quality and service are established. The balanced scorecard dynamic management system based on process control for industrial suppliers of solar thermal utilization is of great theoretical value and practical significance. © 2021, Solar Energy Periodical Office Co., Ltd. All right reserved.
关键词 :
Life cycle Life cycle Process control Process control Solar heating Solar heating
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GB/T 7714 | Yu, Hongwen , Zhang, Yanli , Li, Guangyuan et al. Dynamic management of suppliers in solar thermal utilization industry based on process control [J]. | Acta Energiae Solaris Sinica , 2021 , 42 (1) : 85-89 . |
MLA | Yu, Hongwen et al. "Dynamic management of suppliers in solar thermal utilization industry based on process control" . | Acta Energiae Solaris Sinica 42 . 1 (2021) : 85-89 . |
APA | Yu, Hongwen , Zhang, Yanli , Li, Guangyuan , Zhang, Qian , Yan, Hui . Dynamic management of suppliers in solar thermal utilization industry based on process control . | Acta Energiae Solaris Sinica , 2021 , 42 (1) , 85-89 . |
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摘要 :
The difficultness of Ga inclusion in conventional CuInGa plating can be solved by metal-oxide/hydroxide deposition. However, the selenization process with the oxide precursor is very difficult, because of the strong electronegativity of oxygen. In this work, we proposed a strategy of Cu(InGa)Se-2 thin films manufacture with selenization employing mixed precursor. The precursor consists of CuIn alloy and CuGa oxide/hydroxide, and deposited by electrodeposition as the sources of Cu, In and Ga. Then, the selenization process is performed in the mixed atmosphere of selenium vapor, hydrogen and argon. Meanwhile, we investigated the structural, optical and electrical properties of the prepared Cu(InGa)Se-2 thin films, and it implied both the deposition potential and the subsequent selenization time impact the structure and morphology of the thin films. The co-deposition of CuGa oxide/hydroxide improved the Ga deposition ratio, and it exhibited dendrite growth with large deposition potential. The subsequent selenization results in the transformation from the precursor to CuInSe2 and Cu(InGa)Se-2, as well as, the long selenization time lead to the oxygen concentration decreasing and high Ga concentration in CuInSe2 films. In the end, with a potential of -0.5 V versus Ag/AgCl electrode, the film had a photo-generated current density of 0.05 mA/cm(2), and the CIGS solar cell achieved a conversion efficiency of 1.85%.
关键词 :
CuGa hydroxide CuGa hydroxide Cu(InGa)Se-2 Cu(InGa)Se-2 Oxygen Oxygen Selenization Selenization
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GB/T 7714 | Zhang, Linrui , Qu, Jingjing , Kong, Xingyi et al. CIGS film from selenized of the electrodeposited CuIn alloy and CuGa oxide/hydroxide precursor [J]. | APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING , 2021 , 127 (11) . |
MLA | Zhang, Linrui et al. "CIGS film from selenized of the electrodeposited CuIn alloy and CuGa oxide/hydroxide precursor" . | APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING 127 . 11 (2021) . |
APA | Zhang, Linrui , Qu, Jingjing , Kong, Xingyi , Liu, Beiyun , Yan, Hui . CIGS film from selenized of the electrodeposited CuIn alloy and CuGa oxide/hydroxide precursor . | APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING , 2021 , 127 (11) . |
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摘要 :
The effect of plasma excitation frequency on the performance of intrinsic hydrogenated amorphous silicon (a-Si:H) films and heterojunction solar cells by radio-frequency (RF, 13.56 MHZ) and very-high-frequency (VHF, 40 MHZ) plasma-enhanced chemical vapor deposition (PECVD) have been investigated. The thickness and microstructure of intrinsic a-Si:H films were measured by spectroscopic ellipsometry and Fourier transform infrared spectroscopy (FTIR). The a-Si:H/c-Si interface passivation quality were determined by minority carrier lifetime and transmission electron microscopy (TEM). The current-voltage (I-V) performance of the HJT solar cells were also evaluated. The results reveal that a-Si:H films developed by RF-PECVD with a large area of parallel-plate reactors (> 1 m(2)) exhibit better thickness uniformity, lower microstructure factor, and higher minority carrier lifetimes. Hence HJT solar cells have achieved efficiency of 24.9%, compared with cell efficiency of 24.6% with intrinsic a-Si:H films developed by VHF-PECVD.
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GB/T 7714 | Wang, Jianqiang , Ru, Xiaoning , Ruan, Tianyu et al. Performance of heterojunction solar cells with different intrinsic a-Si:H thin layers deposited by RF- and VHF-PECVD [J]. | JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS , 2021 , 32 (20) : 25327-25331 . |
MLA | Wang, Jianqiang et al. "Performance of heterojunction solar cells with different intrinsic a-Si:H thin layers deposited by RF- and VHF-PECVD" . | JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS 32 . 20 (2021) : 25327-25331 . |
APA | Wang, Jianqiang , Ru, Xiaoning , Ruan, Tianyu , Hu, Yunfei , Zhang, Yongzhe , Yan, Hui . Performance of heterojunction solar cells with different intrinsic a-Si:H thin layers deposited by RF- and VHF-PECVD . | JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS , 2021 , 32 (20) , 25327-25331 . |
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摘要 :
Due to the small work function and large resistance of intrinsic graphene, graphene-silicon Schottky junction solar cells have low VOC and JSC. For those problems, AFORS-HET is used to simulate the graphene-silicon Schottky junction solar cells. The simulation results show that the VOC can be improved with the increase of the band gap, acceptor concentration and work function of graphene. With the increase of the donor concentration of crystal silicon, the VOC is reduced from 494.1 mV to 386.6 mV. Finally, optimum efficiency of 11.92% has been achieved after simulating the thickness of crystal silicon and graphene layer, which is the maximum value of this kind of structure reported at present. © 2020, Solar Energy Periodical Office Co., Ltd. All right reserved.
关键词 :
Graphene Graphene Crystals Crystals Crystal structure Crystal structure Energy gap Energy gap Silicon Silicon Work function Work function Silicon solar cells Silicon solar cells
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GB/T 7714 | Kong, Xinyi , Song, Xuemei , Zhang, Linrui et al. Simulation of graphene-silicon schottky junction solar cells [J]. | Acta Energiae Solaris Sinica , 2020 , 41 (7) : 190-195 . |
MLA | Kong, Xinyi et al. "Simulation of graphene-silicon schottky junction solar cells" . | Acta Energiae Solaris Sinica 41 . 7 (2020) : 190-195 . |
APA | Kong, Xinyi , Song, Xuemei , Zhang, Linrui , Gao, Hongli , Zhang, Yongzhe , Yan, Hui . Simulation of graphene-silicon schottky junction solar cells . | Acta Energiae Solaris Sinica , 2020 , 41 (7) , 190-195 . |
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摘要 :
Environmental conditions and mass flow rates both influence the performance of hybrid photovoltaic thermal modules. In this work, the performance of a photovoltaic thermal module was investigated under two controlled laboratory environmental conditions: closed and ventilated air circulation. Comparing two different environmental conditions, we have examined the effect on operating temperature by the mass flow rate of coolant, varied over the range 0.05 kg/s to 0.10 kg/s. Experimental results, under indoor laboratory conditions, indicate there is a measurable effect from mass flow rate on the overall electrical efficiency in comparison to output at ambient temperature. Interestingly, the output power and electrical energy of the photovoltaic thermal module were observed to increase by 6.06% and 3.67%, respectively, under the conditions of ventilated air circulation. In addition, the maximum electrical and thermal efficiencies of the photovoltaic thermal module were estimated as 13.67% and 53.08%, respectively. Results obtained in this study provide a useful reference for applications of PVT modules requiring combined heat and power, such as commercial buildings and building integrated design.
关键词 :
Environmental condition Environmental condition Mass flow rate Mass flow rate Performance Performance PVT module PVT module
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GB/T 7714 | Pang, Wei , Zhang, Qian , Wilson, Gregory J. et al. Empirical influence of various environmental conditions and mass flow rates on hybrid photovoltaic thermal modules [J]. | APPLIED THERMAL ENGINEERING , 2020 , 171 . |
MLA | Pang, Wei et al. "Empirical influence of various environmental conditions and mass flow rates on hybrid photovoltaic thermal modules" . | APPLIED THERMAL ENGINEERING 171 (2020) . |
APA | Pang, Wei , Zhang, Qian , Wilson, Gregory J. , Yang, Qianfu , Yan, Hui . Empirical influence of various environmental conditions and mass flow rates on hybrid photovoltaic thermal modules . | APPLIED THERMAL ENGINEERING , 2020 , 171 . |
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摘要 :
The operating temperature influences both the electrical efficiency and thermal efficiency of a photovoltaic thermal (PVT) module. In this paper, a simplified thermal transfer model is used to search for the optimal structure of a high efficiency PVT module. For an aluminum collector with a given thickness, the optimal ratio between size and spacing and cross sectional geometry of the flow channels has been found with numerical simulations using computational fluid dynamics (CFD). The temperature distribution of the PVT module constructed with an aluminum collector is found to be more uniform than the conventional sheet-tube PVT module, due to using an improved thermal transfer mode based on the surface contact. To evaluate the impact of cross sectional geometry, the operating temperatures, electrical and thermal efficiencies of two PVT modules designed with rectangle and arch geometries are examined under outdoor conditions. Measured experimental intercept values of instantaneous thermal efficiencies are close to simulation results, demonstrating the utility of the approach as a reference for a new generation of PVT modules in future. (C) 2020 Elsevier Ltd. All rights reserved.
关键词 :
Cross sectional geometry Cross sectional geometry Efficiency Efficiency Operating temperature Operating temperature PVT module PVT module Ratio of size and spacing Ratio of size and spacing
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GB/T 7714 | Pang, Wei , Zhang, Yongzhe , Duck, Benjamin C. et al. Cross sectional geometries effect on the energy efficiency of a photovoltaic thermal module: Numerical simulation and experimental validation [J]. | ENERGY , 2020 , 209 . |
MLA | Pang, Wei et al. "Cross sectional geometries effect on the energy efficiency of a photovoltaic thermal module: Numerical simulation and experimental validation" . | ENERGY 209 (2020) . |
APA | Pang, Wei , Zhang, Yongzhe , Duck, Benjamin C. , Yu, Hongwen , Song, Xuemei , Yan, Hui . Cross sectional geometries effect on the energy efficiency of a photovoltaic thermal module: Numerical simulation and experimental validation . | ENERGY , 2020 , 209 . |
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摘要 :
The quasi one-dimensional layered KP15 shows in-plane anisotropic electrical/optical properties and high carrier mobility. In this work, for the first time, its electrical/optical properties are studied by fabricating phototransistors based on mechanical exfoliated KP15 nanowires. The device shows high specific detectivity (>10(10) Jones throughout the visible band with peak value > 10(12) Jones) and fast response time (similar to 10 ms, shorter than most photodetectors based on 2D Mo or W sulfides). The excellent device performance suggests KP15 as a new candidate material for photonic and optoelectronic devices. (C) 2020 Elsevier B.V. All rights reserved.
关键词 :
Electrical properties Electrical properties Field effect transistor Field effect transistor KP15 KP15 Photodetector Photodetector Quasi one-dimensional Quasi one-dimensional Semiconductors Semiconductors
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GB/T 7714 | Yang, Yanhan , Chen, Xiaoqing , Tian, Nan et al. Photoelectric properties of quasi one-dimensional layered KP15 [J]. | MATERIALS LETTERS , 2020 , 272 . |
MLA | Yang, Yanhan et al. "Photoelectric properties of quasi one-dimensional layered KP15" . | MATERIALS LETTERS 272 (2020) . |
APA | Yang, Yanhan , Chen, Xiaoqing , Tian, Nan , Zhang, Yongzhe , Liu, Danmin , Yan, Hui . Photoelectric properties of quasi one-dimensional layered KP15 . | MATERIALS LETTERS , 2020 , 272 . |
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摘要 :
Copper indium gallium selenium (CIGS) based solar cells were thin film solar cells with high conversion efficiency. The conversion efficiency of CIGS solar cells prepared in the laboratory reached 22.9%, which was close to the highest conversion efficiency of crystal silicon solar cells. At the same time, CIGS cells also had the advantages of high absorption coefficient, low manufacturing cost, and wide application. However, in large-scale commercial production, CIGS solar cells were still far from silicon-based solar cells in terms of efficiency and stability. Further improving the efficiency of CIGS solar cells, expanding the scale of cells industrialization and optimizing their performance were the only way for the future development of CIGS solar cells. The main achievements of the current development of CIGS solar cells were mainly due to people's understanding of CIGS materials and device principles. In this paper, the potential and advantages of CIGS solar cells as a hot spot and recent research progresses on CIGS solar cells were reviewed, including the improvement of buffer layer, absorption layer and window layer, as well as the treatment methods between the layers. The development of these technologies improved the conversion efficiency of CIGS solar cells and promoted its industrialization. At the same time, the related problems in the future development of cells and the solutions were discussed. © Editorial Office of Chinese Journal of Rare Metals. All right reserved.
关键词 :
Buffer layers Buffer layers Conversion efficiency Conversion efficiency Copper compounds Copper compounds Efficiency Efficiency Gallium compounds Gallium compounds Layered semiconductors Layered semiconductors Manufacture Manufacture Silicon solar cells Silicon solar cells Thin films Thin films Thin film solar cells Thin film solar cells
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GB/T 7714 | Qu, Jingjing , Zhang, Linrui , Song, Xuemei et al. Research Progress of Copper Indium Gallium Selenide Thin Film Solar Cells [J]. | Chinese Journal of Rare Metals , 2020 , 44 (3) : 313-327 . |
MLA | Qu, Jingjing et al. "Research Progress of Copper Indium Gallium Selenide Thin Film Solar Cells" . | Chinese Journal of Rare Metals 44 . 3 (2020) : 313-327 . |
APA | Qu, Jingjing , Zhang, Linrui , Song, Xuemei , Zhang, Yongzhe , Wang, Hao , Yan, Hui . Research Progress of Copper Indium Gallium Selenide Thin Film Solar Cells . | Chinese Journal of Rare Metals , 2020 , 44 (3) , 313-327 . |
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摘要 :
The solar selective absorber coating (SSAC) are at the core of the efficient solar-thermal system. In this paper, for the first time, the Chromium-iron oxidation mixture cermet was successfully prepared on the surface of ultra-pure ferritic stainless steel by chemical coloring as SSAC. The coating surface has an optical trap structure, and the chromium-iron oxidation mixture cermet is used as an absorption layer to realize solar-thermal conversion. The solar absorptance (AM1.5) of the coating reached 93.66, and the thermal emittance was less than 13. After thermal shock tests at 25/300 degrees C done 32 times (accumulated 812.8 h), the Performance Criterion (PC) of the coating was 0.01375 < 0.05, showing outstanding thermal stability.
关键词 :
chemical coloring chemical coloring chromium-iron oxidation mixture cermet chromium-iron oxidation mixture cermet solar selective absorber coating solar selective absorber coating thermal shock thermal shock
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GB/T 7714 | Yu, Hongwen , Li, Jinkai , Zhang, Qian et al. Thermal Stability of Chromium-Iron Oxidation Mixture Cermet-Based Solar Selective Absorbing Coatings [J]. | MOLECULES , 2020 , 25 (5) . |
MLA | Yu, Hongwen et al. "Thermal Stability of Chromium-Iron Oxidation Mixture Cermet-Based Solar Selective Absorbing Coatings" . | MOLECULES 25 . 5 (2020) . |
APA | Yu, Hongwen , Li, Jinkai , Zhang, Qian , Pang, Wei , Yan, Hui , Li, Guangyuan . Thermal Stability of Chromium-Iron Oxidation Mixture Cermet-Based Solar Selective Absorbing Coatings . | MOLECULES , 2020 , 25 (5) . |
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摘要 :
Crystalline silicon heterojunction with intrinsic thin-layer photovoltaic (HIT-PV) module produces more output power, compared with the c-Si photovoltaic module. However, it presents a risk of overheating in hot weather. In this paper, we used a new cooling design of the heterojunction with intrinsic thin-layer photovoltaic thermal (HIT-PVT) module to lower the temperature using laminated encapsulation of an aluminum collector in outdoor climates. The measured electrical, thermal and total efficiencies of a HIT-PVT system can catch up to 17.47%, 34.71% and 52.18%, respectively. Moreover, comparing with HIT-PV module, the output power of the HIT-PVT module was enhanced by 5.58% with coolant circulation, and the converted electrical energy can be increased by 9.81% with the designed HIT-PVT module. In addition, the primary energy savings of the new HIT-PVT and HIT-PV systems were 79.77% and 43.71%, respectively.
关键词 :
Aluminum collector Aluminum collector Efficiency Efficiency Electrical energy Electrical energy HIT-PVT module HIT-PVT module Power increment Power increment
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GB/T 7714 | Pang, Wei , Cui, Yanan , Zhang, Qian et al. Enhanced electrical performance for heterojunction with intrinsic thin-layer solar cells based photovoltaic thermal system with aluminum collector [J]. | INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER , 2020 , 116 . |
MLA | Pang, Wei et al. "Enhanced electrical performance for heterojunction with intrinsic thin-layer solar cells based photovoltaic thermal system with aluminum collector" . | INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER 116 (2020) . |
APA | Pang, Wei , Cui, Yanan , Zhang, Qian , Yan, Hui . Enhanced electrical performance for heterojunction with intrinsic thin-layer solar cells based photovoltaic thermal system with aluminum collector . | INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER , 2020 , 116 . |
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