Journal of Photonics for Energy最新文献_第10页

Holographic low concentration optical system increasing light collection efficiency of regular solar panels 全息低聚光光学系统，提高常规太阳能电池板的集光效率

IF 1.7 4区工程技术

Journal of Photonics for Energy Pub Date : 2021-04-01 DOI: 10.1117/1.JPE.11.027002

Jianbo Zhao, Benjamin D. Chrysler, R. Kostuk

引用次数: 4

Design and analysis of broadband antireflective coating for monolithic perovskite/silicon tandem solar cell 单片钙钛矿/硅串联太阳能电池宽带减反射涂层的设计与分析

IF 1.7 4区工程技术

Journal of Photonics for Energy Pub Date : 2021-04-01 DOI: 10.1117/1.JPE.11.025502

X. Xiao, J. Tu, Zuming Liu, Hanming Zhu

引用次数: 2

Enhanced photocatalytic performance of direct Z-scheme Bi4Ti3O12/SrTiO3 photocatalysts for CO2 reduction to solar fuel 直接Z方案Bi4Ti3O12/SrTiO3光催化剂用于CO2还原为太阳能燃料的光催化性能增强

IF 1.7 4区工程技术

Journal of Photonics for Energy Pub Date : 2021-04-01 DOI: 10.1117/1.JPE.11.026501

Naixu Li, Y. Kong, Quanhao Shen, Ke Wang, Nan Wang, Jiancheng Zhou

{"title":"Enhanced photocatalytic performance of direct Z-scheme Bi4Ti3O12/SrTiO3 photocatalysts for CO2 reduction to solar fuel","authors":"Naixu Li, Y. Kong, Quanhao Shen, Ke Wang, Nan Wang, Jiancheng Zhou","doi":"10.1117/1.JPE.11.026501","DOIUrl":"https://doi.org/10.1117/1.JPE.11.026501","url":null,"abstract":"Abstract. Solar-driven CO2 reduction to solar fuel is an effective way to deal with the greenhouse effect and energy crisis. A one-step hydrothermal method was used to synthesize Bi4Ti3O12 / SrTiO3 composite photocatalysts. The heterogeneous structure formed by intimate contact was observed between SrTiO3 (STO) nanoparticles and Bi4Ti3O12 (BTO) nanoplates, achieving an enhanced photocatalytic CO2 reduction yield of CO (13.37 μmol / g) that was 5.74-fold that of pure STO (2.33 μmol / g), with a high yield of CH4 (1.55 μmol / g). Characterizations of phase composition, morphology, and optical/electrochemical properties were applied to prove the heterojunction structure and its role in improving the photocatalytic performance. X-ray photoelectron spectroscopy and ultraviolet photoelectron spectroscopy tests demonstrate that electrons transfer from STO to BTO and result in the generation of an internal electron field between the two phases. Consequently, a direct Z-scheme system was formed: photoelectrons in the conduction band of BTO transferred to the valence band of STO to recombine with the holes thus spatially separated the photogenerated electron–hole pairs while enabling the photocatalyst to achieve the maximum reduction and oxidation capability. The catalyst structure system proposed here may bring new ideas for the development of titanate-based photocatalysts with high CO2 reduction activity.","PeriodicalId":16781,"journal":{"name":"Journal of Photonics for Energy","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41911008","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Use of hollow silica and titanium dioxide microparticles in solar reflective paints for daytime radiative cooling applications in a tropical region 在热带地区白天辐射冷却应用的太阳反射涂料中使用中空二氧化硅和二氧化钛微粒

IF 1.7 4区工程技术

Journal of Photonics for Energy Pub Date : 2021-04-01 DOI: 10.1117/1.JPE.11.022103

S. Atiganyanun

{"title":"Use of hollow silica and titanium dioxide microparticles in solar reflective paints for daytime radiative cooling applications in a tropical region","authors":"S. Atiganyanun","doi":"10.1117/1.JPE.11.022103","DOIUrl":"https://doi.org/10.1117/1.JPE.11.022103","url":null,"abstract":"Abstract. Passive radiative cooling provides an energy-saving method for heat management in buildings. Solar reflective paints are versatile and scalable formats that can be readily applied for this cooling technology. We investigate solar reflective paints consisting of hollow silica (SiO2) and hollow titanium dioxide (TiO2) microparticles as pigments and methyltrimethoxysilane as a binder. The hollow microparticles are synthesized via sol-gel and etching methods to control their diameter. Paint formulation is optimized for high total solar reflectance, measured by a UV-visible-near infrared photospectrometer, without exceeding the critical particle volume content. By introducing air volume into the particles and selecting optimal particle size, solar reflectance of the dry paints is significantly improved. Compared to TiO2 microparticle samples, paints with hollow SiO2 microparticles are more effective at rejecting solar irradiation on average while also requiring less particle volume content. Thermal and spectral emissivity measurement also indicates that the hollow SiO2 microparticle paint has the highest broadband infrared emission, followed by a commercial paint and a TiO2 sample. Outdoor experiment in a tropical climate demonstrates that the paint with hollow SiO2 microparticles has better cooling performance than a commercial cooling paint product. The results suggest the potential of hollow SiO2 microparticles for improving radiative cooling paints.","PeriodicalId":16781,"journal":{"name":"Journal of Photonics for Energy","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43185424","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Investigation of resonance structures in optically thin solar cells 光学薄膜太阳能电池谐振结构的研究

IF 1.7 4区工程技术

Journal of Photonics for Energy Pub Date : 2021-04-01 DOI: 10.1117/1.JPE.11.024501

M. A. Brandsrud, R. Blümel, R. Lukács, E. Seim, E. Marstein, E. Olsen, A. Kohler

{"title":"Investigation of resonance structures in optically thin solar cells","authors":"M. A. Brandsrud, R. Blümel, R. Lukács, E. Seim, E. Marstein, E. Olsen, A. Kohler","doi":"10.1117/1.JPE.11.024501","DOIUrl":"https://doi.org/10.1117/1.JPE.11.024501","url":null,"abstract":"Abstract. To reduce costs, the solar cell industry aims at producing thinner solar cells. Structuring the surfaces of optically thin devices is important for avoiding transmission-related losses and, hence, increasing their efficiency. Light trapping leads to longer optical pathlengths and increased absorption of energy. In addition, resonances in the nanostructures enhance the absorption in the energy-converting material. Further, resonances in periodic structures may couple with each other and thereby increase the absorption. Here, we establish a model system consisting of a multilayered solar cell to study resonances and coupling of resonances in a one-dimensional system. We show that resonances in energy-converting and nonenergy converting layers exist, evaluate the resonances and the coupling of resonances in different thin-film systems, and show how they affect the total absorption of energy in the energy-converting layer. We optimize the parameters of the multilayered thin-film systems to achieve an increase in the amount of the absorbed energy. We find that resonances in nonabsorbing material at the top may lead to absorption enhancement, while we cannot find any enhancement effect due to the coupling of resonances.","PeriodicalId":16781,"journal":{"name":"Journal of Photonics for Energy","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46844683","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Special Section Guest Editorial: Introducing the Special Series on Radiative Cooling 专题版客座编辑：介绍辐射冷却专题系列

IF 1.7 4区工程技术

Journal of Photonics for Energy Pub Date : 2021-04-01 DOI: 10.1117/1.jpe.11.022101

A. Raman, Xiaobo Yin, Peter F. Bermel

引用次数: 0

Perovskite-coated window glasses as semi-transparent luminescent solar concentrators: an evaluation of different coating methods 钙钛矿涂层窗户玻璃作为半透明发光太阳能聚光器:不同涂层方法的评价

IF 1.7 4区工程技术

Journal of Photonics for Energy Pub Date : 2021-04-01 DOI: 10.1117/1.JPE.11.027501

Z. Pourali, Babak Olyaeefar, S. Ahmadi-kandjani, A. Asgari

引用次数: 0

Impact of the refractive index on coupling structures for silicon solar cells 折射率对硅太阳能电池耦合结构的影响

IF 1.7 4区工程技术

Journal of Photonics for Energy Pub Date : 2021-03-30 DOI: 10.1117/1.JPE.11.027001

L. Stevens, O. Höhn, Mario Hanser, N. Tucher, C. Müller, S. Glunz, B. Bläsi

引用次数: 3

Effects of the environmental unilateral shield on radiative cooling performance 环境单边屏蔽对辐射冷却性能的影响

IF 1.7 4区工程技术

Journal of Photonics for Energy Pub Date : 2021-03-18 DOI: 10.1117/1.JPE.11.022102

Kai Gao, You-wen Liu, Honglie Shen

引用次数: 1

Design and development of outdoor daylight ultraviolet fluorescence imaging setup: an inexpensive tool to detect degradation of photovoltaic modules 户外日光紫外线荧光成像装置的设计和开发：一种检测光伏组件退化的廉价工具

IF 1.7 4区工程技术

Journal of Photonics for Energy Pub Date : 2021-03-13 DOI: 10.1117/1.JPE.11.025501

S. Ilyas, M. Noman, Fazle Samad, Bushra Mahnoor, S. Tatapudi, F. Zafar, Govindasami Tamizhmani

{"title":"Design and development of outdoor daylight ultraviolet fluorescence imaging setup: an inexpensive tool to detect degradation of photovoltaic modules","authors":"S. Ilyas, M. Noman, Fazle Samad, Bushra Mahnoor, S. Tatapudi, F. Zafar, Govindasami Tamizhmani","doi":"10.1117/1.JPE.11.025501","DOIUrl":"https://doi.org/10.1117/1.JPE.11.025501","url":null,"abstract":"Abstract. Ultraviolet fluorescence (UVF) imaging is a widely used technique to analyze encapsulant discoloration, which is one of the prominent degradation modes in photovoltaic (PV) modules. Conventionally, UVF is done during nighttime or in a dark room, but performing UVF imaging during nighttime causes several inconveniences including safety due to snakes and other animals and inconvenient scheduling issues for the plant owners. Similarly, performing UVF imaging indoors requires dismounting the modules from the racks and moving them to the laboratory, which are labor-intensive and time-consuming tasks and could damage the module or may cause the energy loss due to partial/complete plant/array shutdown. Moreover, the manufacturer/installer warranty may be voided if the modules are removed from the racks. An outdoor UVF setup that can be used during the daylight can be a better alternative to the indoor or nighttime setup, provided it ensures there is no leakage of ambient light into the covered testing structure. We propose a unique, portable, and user-friendly outdoor UVF setup design that can tackle the issue of the ambient light leaking in, give uniform UV light, and provide enough room to accommodate the UV light source and camera to capture module images. We also classify the encapsulant discoloration into three classes depending on the discoloration intensity level. Furthermore, using the image processing technique, the percentage of browning was calculated in each cell/module.","PeriodicalId":16781,"journal":{"name":"Journal of Photonics for Energy","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2021-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49108252","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0