SPIE Optics + Photonics for Sustainable Energy最新文献_第7页

Investigation of degradation mechanisms of perovskite-based photovoltaic devices using laser beam induced current mapping 基于激光束感应电流成像的钙钛矿基光伏器件降解机理研究

SPIE Optics + Photonics for Sustainable Energy Pub Date : 2015-09-05 DOI: 10.1117/12.2195789

Zhaoning Song, Suneth C. Watthage, A. Phillips, Geethika K. Liyanage, R. Khanal, Brandon L. Tompkins, R. Ellingson, M. Heben

{"title":"Investigation of degradation mechanisms of perovskite-based photovoltaic devices using laser beam induced current mapping","authors":"Zhaoning Song, Suneth C. Watthage, A. Phillips, Geethika K. Liyanage, R. Khanal, Brandon L. Tompkins, R. Ellingson, M. Heben","doi":"10.1117/12.2195789","DOIUrl":"https://doi.org/10.1117/12.2195789","url":null,"abstract":"Solution processed thin film photovoltaic devices incorporating organohalide perovskites have progressed rapidly in recent years and achieved energy conversion efficiencies greater than 20%. However, an important issue limiting their commercialization is that device efficiencies often drop within the first few hundred hours of operation. To explore the origin of the device degradation and failure in perovskite solar cells, we investigated the spatial uniformity of current collection at different stages of aging using two-dimensional laser beam induced current (LBIC) mapping. We validated that the local decomposition of the perovskite material is likely due to interactions with moisture in the air by comparing photocurrent collection in perovskite devices that were maintained in different controlled environments. We show that the addition of a poly(methyl methacrylate)/single-wall carbon nanotube (PMMA/SWCNT) encapsulation layer prevents degradation of the device in moist air. This suggests a route toward perovskite solar cells with improved operational stability and moisture resistance.","PeriodicalId":142821,"journal":{"name":"SPIE Optics + Photonics for Sustainable Energy","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131342376","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 15

Robust measurement of thin-film photovoltaic modules exhibiting light-induced transients 显示光致瞬变的薄膜光伏组件的鲁棒测量

SPIE Optics + Photonics for Sustainable Energy Pub Date : 2015-09-05 DOI: 10.1117/12.2188827

M. Deceglie, T. Silverman, B. Marion, S. Kurtz

引用次数: 7

Sol-gel deposition and plasma treatment of intrinsic, aluminum-doped, and gallium-doped zinc oxide thin films as transparent conductive electrodes 本征、掺铝和掺镓氧化锌薄膜作为透明导电电极的溶胶-凝胶沉积和等离子体处理

SPIE Optics + Photonics for Sustainable Energy Pub Date : 2015-09-05 DOI: 10.1117/12.2186144

Zhaozhao Zhu, T. Mankowski, K. Balakrishnan, A. S. Shikoh, F. Touati, M. Benammar, M. Mansuripur, C. Falco

引用次数: 9

In-situ/operando soft x-ray spectroscopy characterization of interfacial phenomena in energy materials and devices 原位/operando软x射线光谱表征能源材料和器件中界面现象

SPIE Optics + Photonics for Sustainable Energy Pub Date : 2015-09-05 DOI: 10.1117/12.2187742

Yi-sheng Liu, P. Glans, T. Arthur, Fuminori Mizuno, Chinglin Chang, W. Pong, Jinghua Guo

引用次数: 1

Synchrotron-based spectroscopy for solar energy conversion 基于同步加速器的光谱学用于太阳能转换

SPIE Optics + Photonics for Sustainable Energy Pub Date : 2015-09-05 DOI: 10.1117/12.2187038

F. Himpsel, P. Cook, I. Zegkinoglou, I. Boukahil, R. Qiao, W. Yang, S. Pemmaraju, D. Prendergast, C. Kronawitter, M. Kibria, Z. Mi, L. Vayssieres

引用次数: 0

Solar selective coatings based on carbon: transition metal nanocomposites 基于碳-过渡金属纳米复合材料的太阳能选择性涂层

SPIE Optics + Photonics for Sustainable Energy Pub Date : 2015-09-05 DOI: 10.1117/12.2189515

I. Heras, E. Guillén, M. Krause, A. Pardo, J. Endrino, R. Escobar Galindo

{"title":"Solar selective coatings based on carbon: transition metal nanocomposites","authors":"I. Heras, E. Guillén, M. Krause, A. Pardo, J. Endrino, R. Escobar Galindo","doi":"10.1117/12.2189515","DOIUrl":"https://doi.org/10.1117/12.2189515","url":null,"abstract":"The design of an efficient and stable solar selective coating for Concentrating Solar Power central receivers requires a complex study of the materials candidates that compose the coating. Carbon-transition metal nanocomposites were studied in this work as absorber materials because they show appropriate optical properties with high absorption in the solar region and low thermal emittance in the infrared. Furthermore metal carbides are thermal and mechanical stable in air at high temperatures. In this work a solar selective coating was grown by a dual source filtered cathodic vacuum arc. The complete stack consists on an infrared reflection layer, an absorber layer of carbon-zirconium carbide nanocomposites and an antireflection layer. The aim of this research is optimize the absorber layer and for that, the metal content was controlled by adjusting the pulse ratio between the two arc sources. The elemental composition was determined by Ion Beam Analysis, X-Ray diffraction measurements show the crystal structure and the optical properties were characterized by spectroscopic ellipsometry measurements. The reflectance spectra of the complete selective coating were simulated with the optical software CODE. Bruggeman effective medium approximation was employed to average the dielectric functions of the two components which constitute the nanocomposite in the absorber layer. The optimized coating exhibited a solar absorptance of 95.41% and thermal emittance of 3.5% for 400°C. The simulated results were validated with a deposited multilayer selective coating.","PeriodicalId":142821,"journal":{"name":"SPIE Optics + Photonics for Sustainable Energy","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130534492","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Concentrating PV module output power using a wireless microcontroller based automatic sun tracker 聚光光伏模块输出功率采用无线微控制器为基础的自动太阳跟踪器

SPIE Optics + Photonics for Sustainable Energy Pub Date : 2015-09-05 DOI: 10.1117/12.2186942

A. Abou-Elnour, Asma Salem, Salma M. Ghanem, Ismail Amin Ali

{"title":"Concentrating PV module output power using a wireless microcontroller based automatic sun tracker","authors":"A. Abou-Elnour, Asma Salem, Salma M. Ghanem, Ismail Amin Ali","doi":"10.1117/12.2186942","DOIUrl":"https://doi.org/10.1117/12.2186942","url":null,"abstract":"In the present work, a wireless two dimensional microcontroller based sun tracker is designed and implemented. The proposed system has three main components namely the controlling unit, the wireless communication system, and the monitoring and recording unit. Controlling features are fully obtained in the present system using an efficient microcontroller based programming environment. Design equations, which are implemented, allow the usage of the system anywhere anytime without extra hardware tracking circuits. The sun tracker continuously calculates the photovoltaic module’s tilt and azimuth angles by using accurate sun movement equations. The system generates the motors controlling signals to allocate the photovoltaic module to receive the maximize amount of solar energy on its surface from sunrise to sunset. For monitoring purpose the output of the movable photovoltaic module and from a south faced fixed module are wirelessly transmitted to the local monitoring system where the data are recorded, analyzed, and published. The proposed system is successfully implemented and tested for long periods under realistic operating conditions and the obtained positioning results are in excellent agreement with the theoretical ones.","PeriodicalId":142821,"journal":{"name":"SPIE Optics + Photonics for Sustainable Energy","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123517896","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Holographic lens spectrum splitting photovoltaic system for increased diffuse collection and annual energy yield 全息透镜分光光伏系统增加漫射收集和年能源产量

SPIE Optics + Photonics for Sustainable Energy Pub Date : 2015-09-05 DOI: 10.1117/12.2187124

S. Vorndran, Yuechen Wu, Silvana Ayala, R. Kostuk

{"title":"Holographic lens spectrum splitting photovoltaic system for increased diffuse collection and annual energy yield","authors":"S. Vorndran, Yuechen Wu, Silvana Ayala, R. Kostuk","doi":"10.1117/12.2187124","DOIUrl":"https://doi.org/10.1117/12.2187124","url":null,"abstract":"Concentrating and spectrum splitting photovoltaic (PV) modules have a limited acceptance angle and thus suffer from optical loss under off-axis illumination. This loss manifests itself as a substantial reduction in energy yield in locations where a significant portion of insulation is diffuse. In this work, a spectrum splitting PV system is designed to efficiently collect and convert light in a range of illumination conditions. The system uses a holographic lens to concentrate shortwavelength light onto a smaller, more expensive indium gallium phosphide (InGaP) PV cell. The high efficiency PV cell near the axis is surrounded with silicon (Si), a less expensive material that collects a broader portion of the solar spectrum. Under direct illumination, the device achieves increased conversion efficiency from spectrum splitting. Under diffuse illumination, the device collects light with efficiency comparable to a flat-panel Si module. Design of the holographic lens is discussed. Optical efficiency and power output of the module under a range of illumination conditions from direct to diffuse are simulated with non-sequential raytracing software. Using direct and diffuse Typical Metrological Year (TMY3) irradiance measurements, annual energy yield of the module is calculated for several installation sites. Energy yield of the spectrum splitting module is compared to that of a full flat-panel Si reference module.","PeriodicalId":142821,"journal":{"name":"SPIE Optics + Photonics for Sustainable Energy","volume":"124 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128145425","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Metal-complex/semiconductor hybrids for carbon dioxide fixation 用于二氧化碳固定的金属配合物/半导体杂合物

SPIE Optics + Photonics for Sustainable Energy Pub Date : 2015-09-05 DOI: 10.1117/12.2187341

K. Maeda, R. Kuriki, Keita Sekizawa, O. Ishitani

引用次数: 2

Demonstration of an intermediate-scale lens-to-channel waveguide solar concentrator 中等规模透镜-通道波导太阳能聚光器的演示

SPIE Optics + Photonics for Sustainable Energy Pub Date : 2015-09-05 DOI: 10.1117/12.2188697

R. Huang, Y. Liu, C. Madsen

引用次数: 0