Journal of Photonics for Energy最新文献_第3页

Spheroid-based optical cavities for tunable photon recycling and emitter temperature control in robust solar thermophotovoltaic systems 用于可调谐光子回收和鲁棒太阳能热光伏系统发射极温度控制的球形光学腔

IF 1.7 4区工程技术

Journal of Photonics for Energy Pub Date : 2023-01-01 DOI: 10.1117/1.JPE.13.018501

Nima Talebzadeh, P. O'Brien

{"title":"Spheroid-based optical cavities for tunable photon recycling and emitter temperature control in robust solar thermophotovoltaic systems","authors":"Nima Talebzadeh, P. O'Brien","doi":"10.1117/1.JPE.13.018501","DOIUrl":"https://doi.org/10.1117/1.JPE.13.018501","url":null,"abstract":"Abstract. The theoretical efficiency of solar thermophotovoltaic (STPV) systems is much greater than their efficiencies achieved in practice. Optical cavities can improve the performance of STPV systems by increasing the emitter-to-PV cell view factor and by facilitating photon recycling, whereby photons are reflected back to the emitter. Photon recycling reduces losses and increases the temperature of the emitter, thereby increasing efficiency. Our study presents STPV systems comprising optical cavities in the form of oblate and prolate spheroids. The geometry of the optical cavity can be tuned to control the degree of photon recycling, emitter temperature, emission losses, and the emitter-to-PV cell effective view factor and separation distance without using complex nano- or microstructured materials or optical filters. Numerical analysis shows an optical cavity in the form of a prolate spheroid, prolate spheroid with a middle annular aperture specular reflector, and integrated oblate- and prolate-spheroid can be used to achieve efficiencies of 17.7%, 18.9%, and 22%, respectively, under solar irradiation at a concentration factor of 1500X. These robust spheroid-based optical cavities can be used to design improved STPV systems with increased durability and higher performance.","PeriodicalId":16781,"journal":{"name":"Journal of Photonics for Energy","volume":"13 1","pages":"018501 - 018501"},"PeriodicalIF":1.7,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42558525","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

Multirod approach to enhance solar-to-laser conversion efficiency in the Odeillo solar furnace 多棒方法提高Odeillo太阳能炉的太阳能-激光转换效率

IF 1.7 4区工程技术

Journal of Photonics for Energy Pub Date : 2022-10-01 DOI: 10.1117/1.JPE.12.048001

H. Costa, J. Almeida, D. Liang, D. Garcia, M. Catela, B. Tibúrcio, C. Vistas

引用次数: 0

Ni2O3-modified SrTiO3 for enhanced visible-light photocatalytic CO2 reduction activity ni2o3修饰SrTiO3增强可见光光催化CO2还原活性

IF 1.7 4区工程技术

Journal of Photonics for Energy Pub Date : 2022-10-01 DOI: 10.1117/1.JPE.12.046501

Qi Zhang, Yuan Kong, Yang Ge, Yao Zhang, Junwei Liang, J. Chen, Hangxiang Wang, Quanhong Ma, Jiancheng Zhou

{"title":"Ni2O3-modified SrTiO3 for enhanced visible-light photocatalytic CO2 reduction activity","authors":"Qi Zhang, Yuan Kong, Yang Ge, Yao Zhang, Junwei Liang, J. Chen, Hangxiang Wang, Quanhong Ma, Jiancheng Zhou","doi":"10.1117/1.JPE.12.046501","DOIUrl":"https://doi.org/10.1117/1.JPE.12.046501","url":null,"abstract":"Abstract. Low-cost and effective cocatalyst Ni2O3 was loaded on SrTiO3 (STO) via a simple one-step hydrothermal method. The Ni2O3 / SrTiO3 ( m ) photocatalysts were systematically characterized and applied to visible-light-driven CO2 reduction to investigate their photocatalytic activity. The series of the Ni2O3-modified SrTiO3 photocatalysts presented an improved photocatalytic activity and stability. Here, the N5.4STO ( m ) catalyst showed the best photocatalytic activity, with CO and CH4 yielding up to 11.57 and 1.51 μmol / g, respectively, under visible-light irradiation of 3 h, which were 3.15 and 14.84 times higher than that of pure STO(m), respectively. Based on the characterization and experimental results, the enhanced photocatalytic activity might be attributed to the following reasons: (1) Ni2O3 well dispersed on SrTiO3 served as CO2 attachment sites; (2) the modification of Ni2O3 could red shift the absorption edge and broaden the visible-light response ability; and (3) Ni2O3 nanoparticles act as electron traps to capture photogenerated electrons, effectively blocking the recombination of electron–hole pairs. The work offers important insights into the design of non-noble metal oxide cocatalyst modified photocatalysts for electron capture and photoreduction.","PeriodicalId":16781,"journal":{"name":"Journal of Photonics for Energy","volume":"12 1","pages":"046501 - 046501"},"PeriodicalIF":1.7,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47448430","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

Enhancing radiative cooling performance for bifacial photovoltaic module using two kinds of polycarbonate films 利用两种聚碳酸酯薄膜增强双面光伏组件的辐射冷却性能

IF 1.7 4区工程技术

Journal of Photonics for Energy Pub Date : 2022-10-01 DOI: 10.1117/1.JPE.12.045501

Yanfang Zhou, Tairan Xia, Xinwei Niu, Shouliang Sun, Li Xu, Yanzhen Jian, Han Wang

{"title":"Enhancing radiative cooling performance for bifacial photovoltaic module using two kinds of polycarbonate films","authors":"Yanfang Zhou, Tairan Xia, Xinwei Niu, Shouliang Sun, Li Xu, Yanzhen Jian, Han Wang","doi":"10.1117/1.JPE.12.045501","DOIUrl":"https://doi.org/10.1117/1.JPE.12.045501","url":null,"abstract":"Abstract. Radiative cooling, as a cooling method that does not consume any energy during operation, has become a hot topic in recent years. Unlike passive daytime radiative cooling in buildings, radiative coolers used in photovoltaic modules must also have high light transmittance, which undoubtedly makes relevant research more difficult. Currently, bifacial photovoltaic modules are widely available on the market, if traditional cooling methods are employed in the back of them, including passive cooling such as heat sink and active cooling such as air cooling and water cooling, it will block the rear irradiance into the module. Hence, radiative cooling is an excellent solution. In this paper, polycarbonate (PC) film and one composed with a high reflective layer are proposed. The former has high emissivity in the atmospheric window and the latter has high reflectivity in the near-infrared band. Both achieve a good cooling effect without affecting the normal operation of the module. We also prepared the reflective film on PC by magnetron sputtering, and its optical characteristics were also measured and compared with simulation results. We innovatively use PC material and combine the reflective film with quite simple structure. Compared with other research results, they are simpler and stabler film structures and have the advantages of low cost, easy installation, good cooling effect, and can be directly pasted on the surface of the photovoltaic module. It turns out that the cooling effect can reach 6.02°C with R-PC film and photoelectric conversion efficiency can be improved by 0.27% with PC film when hc = 20 W · m − 2 · K − 1 and Ta = 27 ° C. Given its excellent performance, they have a broad application prospect in the daytime passive radiative cooling of bifacial photovoltaic modules.","PeriodicalId":16781,"journal":{"name":"Journal of Photonics for Energy","volume":"12 1","pages":"045501 - 045501"},"PeriodicalIF":1.7,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47106450","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

Influence of thermal population of lower laser levels on the performance of end-side-pumped Ce:Nd:YAG solar laser 低能级热密度对端侧泵浦Ce:Nd:YAG太阳能激光器性能的影响

IF 1.7 4区工程技术

Journal of Photonics for Energy Pub Date : 2022-10-01 DOI: 10.1117/1.JPE.12.044501

S. Payziyev, A. Sherniyozov

引用次数: 2

Cylindrical transparent conductive oxide-free dye-sensitized solar cells with treated flat titanium sheet 圆柱形透明导电无氧化染料敏化太阳能电池，处理扁平钛片

IF 1.7 4区工程技术

Journal of Photonics for Energy Pub Date : 2022-10-01 DOI: 10.1117/1.JPE.12.045502

A. Hayat, A. Baranwal, Masaki Nakamura, Fujisawa Shigeki, S. Pandey, S. Hayase

{"title":"Cylindrical transparent conductive oxide-free dye-sensitized solar cells with treated flat titanium sheet","authors":"A. Hayat, A. Baranwal, Masaki Nakamura, Fujisawa Shigeki, S. Pandey, S. Hayase","doi":"10.1117/1.JPE.12.045502","DOIUrl":"https://doi.org/10.1117/1.JPE.12.045502","url":null,"abstract":"Abstract. Conventional dye-sensitized solar cells (DSSCs) require two transparent conductive oxide (TCO) glasses as working and counter electrodes and are one of the most costly components posing an appreciable cost burden for production and commercialization. To circumvent this issue, we propose a TCO-free device structure utilizing titanium (Ti) sheets as a substitute for TCO. This back contact device structure not only allows the removal of the costly TCO component from the working electrode but also enhances the extent of photons absorbed by the photoanode. A flat titanium sheet with microholes (FTS-MH) was successfully applied to fabricate cylindrical TCO-free-DSSCs) with a titanium sheet as a back contact electrode. When the H2O2 surface-treated FTS-MH substrate generating dense anatase TiO2 nanosheets was used as a photoanode, there was a pronounced improvement in efficiency from 5.76% to 8.59%. This was mainly attributed to the lower interfacial resistance facilitated by improved electrical contact between the conducting FTS-MH substrate and mesoporous TiO2 layer since enhancement in the dye loading was only 8.6%.","PeriodicalId":16781,"journal":{"name":"Journal of Photonics for Energy","volume":"12 1","pages":"045502 - 045502"},"PeriodicalIF":1.7,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41529635","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

Shell-shaped active layers for omnidirectional organic photovoltaic cells 用于全向有机光伏电池的壳形有源层

IF 1.7 4区工程技术

Journal of Photonics for Energy Pub Date : 2022-10-01 DOI: 10.1117/1.JPE.12.048501

D. Hah

{"title":"Shell-shaped active layers for omnidirectional organic photovoltaic cells","authors":"D. Hah","doi":"10.1117/1.JPE.12.048501","DOIUrl":"https://doi.org/10.1117/1.JPE.12.048501","url":null,"abstract":"Abstract. For the employment of organic photovoltaic cells in wearable electronic systems, improvements in energy conversion efficiency and omnidirectionality (angular coverage) are highly appreciated. This study aims at those improvements by introducing shell-shaped active layers. The proposed device structures enhance light absorption and angular range through light coupling to guided modes in the active layer. Two shapes, i.e., a triangle and a semicircle, are examined for the shell cross-sections. Numerical simulation using finite-element analysis and finite-difference time-domain methods demonstrates that the devices with the triangular-shell-shaped active layers exhibit an average absorption enhancement of up to 63% for transverse electric (TE)-polarization and up to 32% for transverse magnetic (TM)-polarization when compared with the flat active layers of the same thicknesses. The average enhancements of the semicircular-shell-shaped active layers are found to be slightly lower than those values, with 60% for TE and 28% for TM. The examined structures also show good omnidirectionality with decent absorption up to an 81 deg incidence angle for the triangular-shell-shaped device and up to a 76 deg angle for the semicircular one when TM polarization is considered. These absorption enhancements and improved angular coverages make the proposed structures highly attractive for wearable electronic system applications.","PeriodicalId":16781,"journal":{"name":"Journal of Photonics for Energy","volume":"12 1","pages":"048501 - 048501"},"PeriodicalIF":1.7,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48542636","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

Side-pumped efficient Ce:Nd:YAG solar laser in a multi-pass scheme 侧泵浦高效Ce:Nd:YAG太阳能激光器的多通方案

IF 1.7 4区工程技术

Journal of Photonics for Energy Pub Date : 2022-07-01 DOI: 10.1117/1.JPE.12.034501

A. Sherniyozov, S. Payziyev

引用次数: 1

Collection of photocarriers in intermediate band solar cells: experiments and equivalent circuit analysis 中间带太阳能电池中光载流子的收集：实验和等效电路分析

IF 1.7 4区工程技术

Journal of Photonics for Energy Pub Date : 2022-07-01 DOI: 10.1117/1.JPE.12.032210

N. Ahsan, N. Miyashita, K. Yu, W. Walukiewicz, Y. Okada

{"title":"Collection of photocarriers in intermediate band solar cells: experiments and equivalent circuit analysis","authors":"N. Ahsan, N. Miyashita, K. Yu, W. Walukiewicz, Y. Okada","doi":"10.1117/1.JPE.12.032210","DOIUrl":"https://doi.org/10.1117/1.JPE.12.032210","url":null,"abstract":"Abstract. The unique electronic features of highly mismatched alloys such as III-V GaNAs are suitable for the intermediate band solar cell (IBSC) application, in which an intermediate band (IB) acts as a stepping stone to generate additional photocarriers across the host semiconductor bandgap through sequential two-step below-bandgap photon absorption (TSPA). However, the collection of photocarriers in a realistic GaNAs IBSC is much lower and often accompanies S-shape kink features in the current–voltage (J–V) curves under illumination for which a coherent picture is lacking. Based on the solar cell characterization of GaNAs IBSC devices grown with and without barriers, with and without antimony, and with and without indium using molecular beam epitaxy, and also with the photocarrier collection analysis using equivalent circuit models, it was identified that the TSPA and the S-shape J–V of this system depend on two critical factors: (1) high carrier recombination currents (I0CI) across the GaNAs sub-gap between the conduction- and intermediate bands (EgCI) and (2) the counterdiode effect of the AlGaAs IB electron barrier. Dramatic improvements in the S-shape J–V feature of the solar cell characteristics were achieved when lattice-strain was compensated in GaInNAsSb epitaxial layers.","PeriodicalId":16781,"journal":{"name":"Journal of Photonics for Energy","volume":"12 1","pages":"032210 - 032210"},"PeriodicalIF":1.7,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45342990","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

Evaporation performance of self-cleaning evaporator with one-dimensional water supply channel for solar evaporation 太阳能蒸发用一维给水通道自洁蒸发器的蒸发性能

IF 1.7 4区工程技术

Journal of Photonics for Energy Pub Date : 2022-07-01 DOI: 10.1117/1.JPE.12.038001

Huiling Duan, Yujie Yan, Tong Ling, Yiding Wang

{"title":"Evaporation performance of self-cleaning evaporator with one-dimensional water supply channel for solar evaporation","authors":"Huiling Duan, Yujie Yan, Tong Ling, Yiding Wang","doi":"10.1117/1.JPE.12.038001","DOIUrl":"https://doi.org/10.1117/1.JPE.12.038001","url":null,"abstract":"Abstract. Cotton rope has good water transport performance and plasticity. An efficient three-dimensional evaporator for solar evaporation was prepared by winding the cotton rope into different shapes and covering its surface with carbon black (CB). The light absorption of the evaporator coated with CB was significantly improved, and the average absorptance was 95.8% over the solar spectrum. Using a one-dimensional channel for water supply, the evaporator and bulk water were separated, and thermal localization was realized without thermal insulation materials. The influence of the evaporator shape on evaporation performance was analyzed. Under the same conditions, the evaporation rate of funnel-shaped evaporator was the highest, reaching 1.3033 kg / m2 h. The multiple reflection of light in the funnel-shaped evaporator promoted the capture and absorption of incident light. For the evaporator with a reflector placed below, the evaporation rates of funnel-shaped, plane-shaped, and umbrella-shaped evaporators increased by 2.3%, 1.67%, and 0.814%, respectively. In addition, the evaporator has a self-cleaning function. The salt deposited on the surface can be redissolved and leaves the evaporator with water. An efficient solar evaporator was designed in a simple and economical way. Its self-cleaning function is especially suitable for seawater desalination.","PeriodicalId":16781,"journal":{"name":"Journal of Photonics for Energy","volume":"12 1","pages":"038001 - 038001"},"PeriodicalIF":1.7,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46980427","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