New Concepts in Solar and Thermal Radiation Conversion and Reliability最新文献

{"title":"Switchable photovoltaic windows based on metal halide perovskites (Conference Presentation)","authors":"L. Wheeler","doi":"10.1117/12.2323356","DOIUrl":"https://doi.org/10.1117/12.2323356","url":null,"abstract":"","PeriodicalId":324661,"journal":{"name":"New Concepts in Solar and Thermal Radiation Conversion and Reliability","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116825634","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}

{"title":"Comparison of indoor and outdoor accelerated PID tests on CIGS modules (Conference Presentation)","authors":"K. Sakurai, H. Tomita, Darshan Schmitz, Shuuji Tokuda, Kinichi Ogawa, H. Shibata, A. Masuda","doi":"10.1117/12.2320865","DOIUrl":"https://doi.org/10.1117/12.2320865","url":null,"abstract":"","PeriodicalId":324661,"journal":{"name":"New Concepts in Solar and Thermal Radiation Conversion and Reliability","volume":"41 5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129164799","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}

{"title":"Reducing permeability of indium tin oxide contacts to improve thermal stability in perovskite solar cells (Conference Presentation)","authors":"Caleb C. Boyd, Rongrong Cheacharoen, Kevin A. Bush, Rohit Prasanna, T. Leijtens, M. McGehee","doi":"10.1117/12.2322658","DOIUrl":"https://doi.org/10.1117/12.2322658","url":null,"abstract":"","PeriodicalId":324661,"journal":{"name":"New Concepts in Solar and Thermal Radiation Conversion and Reliability","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123373514","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}

{"title":"Pareto optimal spectrally selective emitters for thermophotovoltaics via weak absorber critical coupling (Conference Presentation)","authors":"J. Foley, N. Jeon, A. Martinson, S. Gray, J. Roman, Jonathan Hernandez","doi":"10.1117/12.2325327","DOIUrl":"https://doi.org/10.1117/12.2325327","url":null,"abstract":"","PeriodicalId":324661,"journal":{"name":"New Concepts in Solar and Thermal Radiation Conversion and Reliability","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131028520","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}

{"title":"Enhanced radiative heat transfer in structured media via inverse design (Conference Presentation)","authors":"Alejandro W. Rodriguez","doi":"10.1117/12.2323910","DOIUrl":"https://doi.org/10.1117/12.2323910","url":null,"abstract":"","PeriodicalId":324661,"journal":{"name":"New Concepts in Solar and Thermal Radiation Conversion and Reliability","volume":"163 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121485462","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}

{"title":"Radial junction crystalline silicon solar cells with an efficiency of over 20% using vertically aligned microwires (Conference Presentation)","authors":"Kwanyong Seo, I. Hwang","doi":"10.1117/12.2326860","DOIUrl":"https://doi.org/10.1117/12.2326860","url":null,"abstract":"Light-absorption enhancement is one of the key research areas related to the development of high-efficiency crystalline silicon (c-Si) solar cells. Surface structuring which can reduce not only the surface reflection but also increase the optical path length is an efficient way to increase light absorption in a broadband wavelength range. Among the surface structures, vertically aligned silicon microwires (MWs) have been extensively investigated as a means for developing highly efficient c-Si solar cells because of the outstanding broadband antireflection and radial junction effect which enables efficient charge collection. The incident light is absorbed along the long MW axis, while photo-induced carriers can be collected along the short radial direction. To realize the highly efficient radial junction c-Si solar cells, we have developed novel technologies such as fabrication process of MWs, high conductive and transmittance top electrode, shape-controlled MWs, and high purity doping process. \u0000The high-aspect-ratio MWs (> 10:1) were successfully fabricated through both optimized metal-assisted chemical etching (MACE) and deep reactive ion etching (DRIE) processes. To achieve the high efficiency of MW radial junction solar cells, we developed the high conductive and transparent top electrode to replace the conventional bus-finger electrode which has a significant shading loss. We devised a novel micro-grid top electrode which shows superior transmittance (over 97%) and low sheet resistance (less than 30 Ω/□). By applying the micro-grid electrode on the top surface, the MWs solar cells showed outstanding fill factor (81.2%) and improved efficiency (16.5%). Although our MWs radial junction solar cell showed improved efficiency with the micro-grid electrode, it needs to increase the light absorption capability to maximize the efficiency. \u0000As an efficient way to decrease the flat-top-surface reflection of the MWs and increase the light absorption property of the radial junction solar cells, a tapered-MW structure was employed using a simple wet-etching process. When a c-Si wafer with MWs is dipped in a silicon etchant (RSE-100, transene), the top part of the MWs that has a shorter diffusion path compared to the bottom part is etched more quickly because of the different chemical diffusion path lengths leading to the formation of tapered MWs. Since the diameter of the tapered MWs gradually increased from the top to the bottom, the tapered MWs can act as a buffer layer to compensate for the mismatch between the refractive indexes of air (1) and the silicon substrate (4). Thus, the surface reflection of the tapered MWs was observed to be less than 2% at a wavelength of 550 nm. The tapered MW based radial junction solar cells exhibit improved efficiency up to 18.9% thanks to the enhanced light absorption property.\u0000As the last step for optimizing the device structure of the MWs solar cells, we developed high purity doping process using acid dopant sources","PeriodicalId":324661,"journal":{"name":"New Concepts in Solar and Thermal Radiation Conversion and Reliability","volume":"262 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133726128","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}

{"title":"Development of methodology for service life prediction of PV backsheets (Conference Presentation)","authors":"X. Gu, Chen-An Wang, Yadong Lyu, J. H. Kim, A. Fairbrother, Lakesha Perry, D. Jacob, T. Nguyen, S. Watson","doi":"10.1117/12.2323423","DOIUrl":"https://doi.org/10.1117/12.2323423","url":null,"abstract":"Accelerated laboratory testing has been recognized as a common means to simulate in-field exposure in a time-saving way, however, caution is needed as highly accelerated stresses can cause degradation which is never observed in the field. In this work, the effects of the environmental factors on backsheet degradation have been investigated using a commercial PPE backsheet (polyethylene terephthalate (PET/PET/ethylene-vinyl acetate (EVA)). The PPE films were exposed to NIST SPHERE (Simulated Photodegradation via High Energy Radiant Exposure) under different UV intensities, wavelengths, temperatures and humidities. The chemical and optical degradation of the backsheets were examined by FTIR and UV-vis spectroscopy. The reciprocity law and action spectrum were studied and the activation energy for PPE degradation was calculated. A preliminary statistical model for predicting the service life of the PPE backsheet has been established based on the SPHERE exposure data and further validated by the initial degradation of the fielded PPE in Florida, Arizona and Maryland.","PeriodicalId":324661,"journal":{"name":"New Concepts in Solar and Thermal Radiation Conversion and Reliability","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116893911","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}

{"title":"Two for one photon deal: Prospects for singlet fission photovoltaics (Conference Presentation)","authors":"T. Schmidt, S. Prasad","doi":"10.1117/12.2323217","DOIUrl":"https://doi.org/10.1117/12.2323217","url":null,"abstract":"","PeriodicalId":324661,"journal":{"name":"New Concepts in Solar and Thermal Radiation Conversion and Reliability","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132616026","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}

{"title":"Using nanostructures to tailor thermal radiation for clean energy and clean water applications (Conference Presentation)","authors":"S. Boriskina, Gang Chen","doi":"10.1117/12.2325956","DOIUrl":"https://doi.org/10.1117/12.2325956","url":null,"abstract":"This talk will introduce some of our recent work on using nanostructures to tailor thermal radiation with applications from solar and thermal energy for electrical generation and storage, to desalination. We fabricated solar photovolatic cells with efficiency >15% using 10 micron-thick crystalline silicon films. We demonstrated that aerogels can be used for concentrated solar thermal power, eliminating the need for vacuum and wavelength selective coatings. Photovoltaic cells can couple to terrestrial heat sources to convert thermal radiation into electricity, at an efficiency higher than photovoltaics. Moving to lower temperature range, we show that fabrics can be made to radiate out human body heat while remain opaque to visible light. We also demonstrate that by localizing solar energy on water surface, we can boil water and even achieve superheated steam under one sun. The talk will end with a discussion of the entropy of light and how we exploit the understanding to design better thermal-to-electrical energy converters.","PeriodicalId":324661,"journal":{"name":"New Concepts in Solar and Thermal Radiation Conversion and Reliability","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114411651","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}

{"title":"Managing the solar spectrum at sub-wavelength scales: nanowire enabled new PV concepts (Conference Presentation)","authors":"Nasim Tavakoli, Pablo Romero, M. Aarts, A. F. Morral, E. Alarcón-Lladó","doi":"10.1117/12.2323379","DOIUrl":"https://doi.org/10.1117/12.2323379","url":null,"abstract":"","PeriodicalId":324661,"journal":{"name":"New Concepts in Solar and Thermal Radiation Conversion and Reliability","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133943791","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}