Solar Energy Materials and Solar Cells最新文献

Oxide-nitride nanolayer stacks for enhanced passivation of p-type surfaces in silicon solar cells 用于增强硅太阳能电池 p 型表面钝化的氧化物-氮化物纳米层堆

IF 6.3 2区材料科学

Solar Energy Materials and Solar Cells Pub Date : 2024-11-17 DOI: 10.1016/j.solmat.2024.113231

Xinya Niu , Anastasia Soeriyadi , Guanze He , Shona McNab , Sergio Lozano-Perez , Ruy S. Bonilla

{"title":"Oxide-nitride nanolayer stacks for enhanced passivation of p-type surfaces in silicon solar cells","authors":"Xinya Niu , Anastasia Soeriyadi , Guanze He , Shona McNab , Sergio Lozano-Perez , Ruy S. Bonilla","doi":"10.1016/j.solmat.2024.113231","DOIUrl":"10.1016/j.solmat.2024.113231","url":null,"abstract":"<div><div>In the quest for ultra-high-efficiency silicon solar cells, optimising surface passivation has emerged as a critical pathway to minimise losses and enhance device performance. Recent breakthroughs in aluminium oxide (AlO<sub>x</sub>) passivation show an interface to Si with low interface defect density and high negative charge density after activation annealing at 400–450 °C, enabling low surface recombination velocities. The formation of an interfacial SiO<sub>x</sub> layer has been recognised as a key factor. In this study, we present an in-depth investigation of a SiO<sub>x</sub>/AlO<sub>x</sub>/SiN<sub>x</sub> nanolayer stack interface with Si, where the SiO<sub>x</sub> is wet chemically grown. By varying the AlO<sub>x</sub> deposition from 5 to 40 ALD cycles, we observed a reduction in interface defect density, indicating the presence of negatively charged hydrogen in the AlO<sub>x</sub> layer. We reveal a distinctly different interface between Si and nanolayer stacks with or without AlO<sub>x</sub>. Activation annealing significantly reduced recombination losses for stacks with AlO<sub>x</sub>, attributed to increased charge density and decreased carrier capture velocity at the valence band-tail. We find lower electron capture rates in nanolayer stacks containing AlO<sub>x</sub>, suggesting effective passivation of donor states by negatively charged hydrogen. Additionally, the formation of new acceptor states was detected by an increase in hole capture velocity at the interface after annealing. Electron energy loss spectroscopy (EELS) identified an Al:SiO<sub>x</sub>N<sub>y</sub> layer of ∼2.5 nm thick with excess oxygen content and a mixture of tetrahedral and octahedral coordinated Al, likely contributing to the formation of acceptor defects and suggest an intrinsic link between the chemical and field-effect passivation.</div></div>","PeriodicalId":429,"journal":{"name":"Solar Energy Materials and Solar Cells","volume":"280 ","pages":"Article 113231"},"PeriodicalIF":6.3,"publicationDate":"2024-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142657822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sb2S3 solar cells with TiO2 electron transporting layers synthesized by ALD and USP methods 采用 ALD 和 USP 方法合成的带有 TiO2 电子传输层的 Sb2S3 太阳能电池

IF 6.3 2区材料科学

Solar Energy Materials and Solar Cells Pub Date : 2024-11-16 DOI: 10.1016/j.solmat.2024.113279

T. Dedova , R. Krautmann , M. Rusu , A. Katerski , M. Krunks , T. Unold , N. Spalatu , A. Mere , J. Sydorenko , M. Sibiński , I. Oja Acik

{"title":"Sb2S3 solar cells with TiO2 electron transporting layers synthesized by ALD and USP methods","authors":"T. Dedova , R. Krautmann , M. Rusu , A. Katerski , M. Krunks , T. Unold , N. Spalatu , A. Mere , J. Sydorenko , M. Sibiński , I. Oja Acik","doi":"10.1016/j.solmat.2024.113279","DOIUrl":"10.1016/j.solmat.2024.113279","url":null,"abstract":"<div><div>Electronic characteristics were investigated for solar cells (SCs) based on FTO/TiO<sub>2</sub>/Sb<sub>2</sub>S<sub>3</sub>/P3HT/Au structure, employing TiO<sub>2</sub> electron transport layers (ETLs) fabricated by two different methods: ultrasonic spray pyrolysis (USP) and atomic layer deposition (ALD). Regardless of the deposition method, both ALD and USP-TiO<sub>2</sub> exhibit the anatase crystal structure. The calculated crystallite sizes, derived from the (101) reflection of TiO<sub>2</sub> layers using the Scherrer equation, show minimal variance between the two methods, with values 25 nm for USP and 30 nm for ALD TiO<sub>2</sub>, respectively. Optical band gaps (E<sub>g</sub>) were found to be 3.31 eV and 3.35 eV for USP and ALD methods, respectively. Exploring the thickness series of ALD-TiO<sub>2</sub>, ranging from 100 to 1000 cycles (approximately 5–75 nm), solar cell performance was evaluated, with the highest power conversion efficiency (PCE) of 3.3 % achieved using ALD-TiO<sub>2</sub> of 400 cycles (approximately 30 nm thick). Notably, SCs featuring USP TiO<sub>2</sub> ETL layers, with a thickness of approximately 35–40 nm, outperform their ALD-TiO<sub>2</sub> counterparts, improving PCE by 15 %, recording 4.0 % versus 3.3 %, respectively. This superiority in PCE is attributed to the more favorable conduction band minimum (CBM) position of USP-TiO<sub>2</sub> relative to the Fermi level, as revealed in the band diagram. Specifically, a lower CBM spike at the USP-TiO<sub>2</sub>/-Sb<sub>2</sub>S<sub>3</sub> interface indicates reduced recombination rates compared to those at the ALD-TiO<sub>2</sub>/-Sb<sub>2</sub>S<sub>3</sub> interface. This study offers valuable insights into enhancing SC performance by optimizing deposition methods and synthesis parameters of ETL layers.</div></div>","PeriodicalId":429,"journal":{"name":"Solar Energy Materials and Solar Cells","volume":"280 ","pages":"Article 113279"},"PeriodicalIF":6.3,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142657921","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Solar energy harvester based on polarization insensitive and wide angle stable UWB absorber for UV, visible and IR frequency range 基于对偏振不敏感且广角稳定的 UWB 吸收器的太阳能收集器，适用于紫外线、可见光和红外线频率范围

IF 6.3 2区材料科学

Solar Energy Materials and Solar Cells Pub Date : 2024-11-16 DOI: 10.1016/j.solmat.2024.113292

Vikram Maurya, Shashank Kumar Yadav, Sarthak Singhal

{"title":"Solar energy harvester based on polarization insensitive and wide angle stable UWB absorber for UV, visible and IR frequency range","authors":"Vikram Maurya, Shashank Kumar Yadav, Sarthak Singhal","doi":"10.1016/j.solmat.2024.113292","DOIUrl":"10.1016/j.solmat.2024.113292","url":null,"abstract":"<div><div>This paper proposes an ultrawideband electromagnetic absorber operating in the infrared, visible light, and ultraviolet regime. The overall structure of the proposed absorber is made up of multiple square rings arranged in a symmetrical configuration. The absorber consists of three layers, the ground layer made of nickel, the intermediate substrate layer is made of polyimide and the top layer is constructed from nickel. The overall unit cell dimension of 119 nm × 119 nm × 31 nm has been proposed for the optimum performance of the absorber. It has absorption (A) of more than 90 % for the frequency range of 131.59 THz to more than 4500 THz. The proposed absorber is polarization-independent. The absorber shows more than 70 % absorption for incident angle<65° in both transverse electric and transverse magnetic modes. The absorber covers the range of infrared, visible, and ultraviolet frequencies. Using this proposed absorber, high solar absorption efficiency (η<sub>A</sub>) of 96.84 % and high thermal emission efficiency (η<sub>E</sub>) of 90.19 %, 92.54 %, 95 % and 96.64 % are achieved at 1000K, 1500K, and 2500K & 3500 K, respectively. Due to the ultrawideband characteristic of the proposed design in the infrared, visible, and ultraviolet regimes, the proposed design can be used as a highly efficient absorber in many applications such as photovoltaics, photo-detectors, thermal emitters, IR (Infrared) detectors, cloaking, solar energy harvesting, sensing, and UV (Ultra-Violet) protection.</div></div>","PeriodicalId":429,"journal":{"name":"Solar Energy Materials and Solar Cells","volume":"280 ","pages":"Article 113292"},"PeriodicalIF":6.3,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142657819","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Testing and rating of vehicle-integrated photovoltaics: Scientific background 汽车集成光伏系统的测试和评级：科学背景

IF 6.3 2区材料科学

Solar Energy Materials and Solar Cells Pub Date : 2024-11-16 DOI: 10.1016/j.solmat.2024.113241

Kenji Araki, Yasuyuki Ota, Kensuke Nishioka

引用次数: 0

Decreased interface defects in Cu2ZnSn(S,Se)4 solar cells via Cd2+&Ag+ double-ion interface deposition 通过 Cd2+&Ag+ 双离子界面沉积减少 Cu2ZnSn(S,Se)4 太阳能电池中的界面缺陷

IF 6.3 2区材料科学

Solar Energy Materials and Solar Cells Pub Date : 2024-11-16 DOI: 10.1016/j.solmat.2024.113290

Xiangyang Zhao, Lingling Wang, Yawei Wang, Xingyu Zhang, Rong Fang, Yue Zhou, Rui Guo, Xintong Zhang, Yichun Liu

{"title":"Decreased interface defects in Cu2ZnSn(S,Se)4 solar cells via Cd2+&Ag+ double-ion interface deposition","authors":"Xiangyang Zhao, Lingling Wang, Yawei Wang, Xingyu Zhang, Rong Fang, Yue Zhou, Rui Guo, Xintong Zhang, Yichun Liu","doi":"10.1016/j.solmat.2024.113290","DOIUrl":"10.1016/j.solmat.2024.113290","url":null,"abstract":"<div><div>Kesterite Cu<sub>2</sub>ZnSn(S,Se)<sub>4</sub> (CZTSSe) thin film solar cells are considered a promising new type of film cell, due to their rich elemental reservation and excellent photovoltaic performance. However, the deleterious defects at the heterojunction interface severely hinder charge transport, separation, and extraction, significantly limiting the photovoltaic performance of CZTSSe solar cells. In this study, a simple method involving the incorporation of Cd<sup>2+</sup> and Ag <sup>+</sup> dual-ion at the heterojunction interface was proposed to reduce interfacial defects. The results showed that Cd<sup>2+</sup> and Ag <sup>+</sup> dual-ion interface deposition effectively reduced the [2Cu<sub>zn</sub> + Sn<sub>zn</sub>] harmful defects near the heterojunction interface and subsequently reduced the number of recombination centers in the interface. This led to improved carrier recombination at the interface. Meanwhile, the devices achieved a wider depletion width, which was more favorable for carrier collection. Ultimately, the conversion efficiency increased by 32.81 %. This simple interface dual-ion deposition strategy offers a promising strategy for further enhancing the efficiency of CZTSSe cells.</div></div>","PeriodicalId":429,"journal":{"name":"Solar Energy Materials and Solar Cells","volume":"280 ","pages":"Article 113290"},"PeriodicalIF":6.3,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142657920","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimizing bypass diode performance with modified hotspot mitigation circuit 利用改进型热点缓解电路优化旁路二极管性能

IF 6.3 2区材料科学

Solar Energy Materials and Solar Cells Pub Date : 2024-11-16 DOI: 10.1016/j.solmat.2024.113281

Kashika Baranwal, Prem Prakash, Vinod Kumar Yadav

{"title":"Optimizing bypass diode performance with modified hotspot mitigation circuit","authors":"Kashika Baranwal, Prem Prakash, Vinod Kumar Yadav","doi":"10.1016/j.solmat.2024.113281","DOIUrl":"10.1016/j.solmat.2024.113281","url":null,"abstract":"<div><div>The frequently changing environmental conditions have a substantial impact on the performance of photovoltaic (PV) systems, which makes it challenging to ensure its high-performance ratios. Mismatch of solar cells is one such factor, that leads to formation of hotspot in solar PV systems and reduces its reliability. The experimental findings presented in this article shows the inadequacy of conventional bypass circuit to protect the shaded PV module from adverse thermal impacts of small shaded areas at all operating points and for large shaded areas at maximum power point. Its performance is assessed through I-V, P-V, and bypass characteristic of the PV system for various partial shading scenarios. Previous attempts to mitigate hotspots were considered complex and costly for practical use. This article suggests a cost-effective remedy by simplifying the triggering of MOSFET based hotspot mitigation circuit. The performance of the proposed circuit is demonstrated using a 3x3 TCT connected PV array and its efficacy is confirmed via thermographic images, validating the enhanced reliability aspect. The findings reveal that the implemented solution effectively reduces the temperature of the shadowed cell(s) by up to 27.45 % when compared with conventional bypass circuit.</div></div>","PeriodicalId":429,"journal":{"name":"Solar Energy Materials and Solar Cells","volume":"280 ","pages":"Article 113281"},"PeriodicalIF":6.3,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142657821","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Experimental evaluation of photovoltaic thermal (PVT) system using a modular heat collector with flat back shape fins, pipe, nanofluids and phase change material 使用带有平背形翅片、管道、纳米流体和相变材料的模块化集热器的光伏热（PVT）系统的实验评估

IF 6.3 2区材料科学

Solar Energy Materials and Solar Cells Pub Date : 2024-11-16 DOI: 10.1016/j.solmat.2024.113294

Mohammadreza Madadi, Ali Akbar Abbasian Arani

{"title":"Experimental evaluation of photovoltaic thermal (PVT) system using a modular heat collector with flat back shape fins, pipe, nanofluids and phase change material","authors":"Mohammadreza Madadi, Ali Akbar Abbasian Arani","doi":"10.1016/j.solmat.2024.113294","DOIUrl":"10.1016/j.solmat.2024.113294","url":null,"abstract":"<div><div>In recent years, the study of decreasing photovoltaic (PV) units cell temperature increase caused by solar excess energy, which is converted into heat rather than electrical energy, resulting in voltage output reduction and thereby lowering overall efficiency, has been the trending subject of much researches. In this study, a novel heat collector, which is an assembly of a series of flat heat sinks and serpentine copper tubes in an enclosed sealed container filled with paraffin wax is proposed. This assembly as an individual set is clamped and attached by screws to the rear side of the photovoltaic panel. The proposed system was experimentally investigated outdoors by utilizing SiC/water and Graphene/water nanofluids and water as cooling mediums with volume fractions 0.2 % and 0.4 % at 0.5LPM and 1LPM flow rates and this system was compared with a photovoltaic panel with no cooling. The achieved results showed that both nanofluids caused temperature drop compared to using water as coolant and the system with no cooling. Also, experimental results showed that the Graphene nanofluid caused more temperature reduction and accordingly resulted in higher power and efficiencies. Moreover, increasing volume concentration and flow rate of the working fluid led to have better performance in all the tests. Also, increasing volume concentration of nanofluid and flow rate caused to have more temperature reduction and as a result, more enhancement in electrical and thermal efficiencies.</div></div><div><h3>Kewwords</h3><div>Photovoltaic thermal (PVT); Heat collector; Flat back shape fins, Fins, Nanofluids; Phase Change Material (PCM).</div></div>","PeriodicalId":429,"journal":{"name":"Solar Energy Materials and Solar Cells","volume":"280 ","pages":"Article 113294"},"PeriodicalIF":6.3,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142657820","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Analyzing the effectiveness of various coatings to mitigate photovoltaic modules soiling in desert climate 分析各种涂层在减轻沙漠气候条件下光伏组件污损方面的效果

IF 6.3 2区材料科学

Solar Energy Materials and Solar Cells Pub Date : 2024-11-16 DOI: 10.1016/j.solmat.2024.113278

Alaa Elsafi , Mohamed Abdelrahim , Mohamed Elgaili , Kamal Mroue , Ayman Samara , Atef Zekri , Guido Willers , Klemens Ilse , Brahim Aïssa , Hussam Qasem , Mujaheed Pasha , Said A. Mansour , Amir Abdallah

{"title":"Analyzing the effectiveness of various coatings to mitigate photovoltaic modules soiling in desert climate","authors":"Alaa Elsafi , Mohamed Abdelrahim , Mohamed Elgaili , Kamal Mroue , Ayman Samara , Atef Zekri , Guido Willers , Klemens Ilse , Brahim Aïssa , Hussam Qasem , Mujaheed Pasha , Said A. Mansour , Amir Abdallah","doi":"10.1016/j.solmat.2024.113278","DOIUrl":"10.1016/j.solmat.2024.113278","url":null,"abstract":"<div><div>In this work, two different anti-soiling coatings (ASC) and anti-reflection coatings (ARC) were developed and tested under real operating conditions in Doha, Qatar, and compared with uncoated glass (UNC) to identify the best coating properties for mitigating solar photovoltaic (PV) module soiling. Soiling was measured in terms of loss in light transmittance, measured by UV–Vis spectroscopy, and increase in surface coverage area, measured using optical microscopy. The results indicate a decrease in light transmittance and an increase in surface coverage area over time due to dust accumulation. ASC coupons show higher hydrophilicity and, therefore, less soiling. ASC/ARC leads to a higher loss in light transmittance, while UNC results in a higher surface coverage area compared to the other coupons. Over 25 weeks of outdoor exposure and 12 cleaning cycles, analysis of 13,320 light microscopy images revealed mean dust surface coverage areas for ASC, ASC/ARC, and UNC glass coupons of 14.6 %, 13.6 %, and 15.8 %, respectively. Unlike the ASC/ARC and UNC coupons, the ASC recovers to its initial condition immediately after cleaning. Therefore, ASC was found to maintain a cleaner glass surface compared to ASC/ARC and UNC. However, the differences in transmittance loss among the three coupons are not significant. The results were compared to findings from similar studies conducted in Saudi Arabia to evaluate regional differences in coatings performance. For the same coatings, a significant light transmittance loss was measured in Doha (Qatar) compared to Uyaynah (Saudi Arabia). The combination of high humidity and heavy dust in Qatar's extreme conditions reduces the effectiveness of both ASC/ARC and ASC coatings.</div></div>","PeriodicalId":429,"journal":{"name":"Solar Energy Materials and Solar Cells","volume":"280 ","pages":"Article 113278"},"PeriodicalIF":6.3,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142657770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Accurately quantifying the recombination pathways unique in back contact solar cells 精确量化背接触太阳能电池特有的重组途径

IF 6.3 2区材料科学

Solar Energy Materials and Solar Cells Pub Date : 2024-11-16 DOI: 10.1016/j.solmat.2024.113277

Genshun Wang , Hao Lin , Hua Wu , Tingting Wang , Qiao Su , Chaowei Xue , Liang Fang , Xixiang Xu , Pingqi Gao

{"title":"Accurately quantifying the recombination pathways unique in back contact solar cells","authors":"Genshun Wang , Hao Lin , Hua Wu , Tingting Wang , Qiao Su , Chaowei Xue , Liang Fang , Xixiang Xu , Pingqi Gao","doi":"10.1016/j.solmat.2024.113277","DOIUrl":"10.1016/j.solmat.2024.113277","url":null,"abstract":"<div><div>With the rapid development of back contact (BC) solar cells, more refined characterization methods are eagerly required to match the evolving technology. Specifically, methodologies capable to accurately quantify the recombination values near the hole-selective contact (HSC)/Gap boundary are still lacking. Hence, we perform simulations using a simplified recombination model to re-specify the perimeter recombination in heterojunction back contact (HBC) solar cells on the prerequisite of excellent surface passivation. And then an innovative characterization method is developed to precisely extract the recombination current values of various regions. Moreover, our method is powerful in accurate localization of the defective regions, e.g., perimeter recombination, junction recombination, or leakage recombination issue, rendering sequentially target-oriented response much easier. We clarify the role relationship and the influence extent between the characteristic parameters and the intrinsic properties of HBC solar cells. Also, we believe the full utilization of the proposed method could accelerate the development of BC solar cells to a new level.</div></div>","PeriodicalId":429,"journal":{"name":"Solar Energy Materials and Solar Cells","volume":"280 ","pages":"Article 113277"},"PeriodicalIF":6.3,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142657769","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Concentrated near-field thermophotonics for efficient solar energy harvesting: Model development, system analysis, and performance optimization 用于高效太阳能收集的聚光近场热光子学：模型开发、系统分析和性能优化

IF 6.3 2区材料科学

Solar Energy Materials and Solar Cells Pub Date : 2024-11-15 DOI: 10.1016/j.solmat.2024.113273

Ehsanur Rahman , Fei Gao , Xin Zhang

{"title":"Concentrated near-field thermophotonics for efficient solar energy harvesting: Model development, system analysis, and performance optimization","authors":"Ehsanur Rahman , Fei Gao , Xin Zhang","doi":"10.1016/j.solmat.2024.113273","DOIUrl":"10.1016/j.solmat.2024.113273","url":null,"abstract":"<div><div>In recent years, research on near-field thermophotonic systems has predominantly focused on waste heat recovery and electroluminescence cooling, while studies on near-field thermophotonic converters for solar energy harvesting have not been reported. We propose a near-field solar thermophotonic converter (NF-STC) that harnesses the full solar spectrum to generate electricity. Considering fluctuational electrodynamics and nonradiative recombination losses, we developed a self-consistent model to theoretically evaluate the performance of the NF-STC system from far-field to near-field regimes under two scenarios: varying LED temperature and fixed LED temperature. In the case of variable LED temperature, we identify that increasing the solar concentration, decreasing the thickness of the semiconductor material to mitigate the effect of non-radiative recombination, narrowing the vacuum gap spacing, and implementing gold back reflector for photon recycling can significantly bolster the performance of the system. Specifically, when the gap spacing is 10 nm, and the solar concentration factor is 400, we show that the total electrical power density and overall conversion efficiency can reach 8892 mW cm<sup>−2</sup> and 22.2%, respectively. Conversely, in the fixed LED temperature scenario, the performance characteristics diverge from those observed in the variable temperature case. The system exhibits superior performance at higher LED temperatures and smaller gap spacing. This work deepens the understanding of thermophotonic converters’ application in solar energy harvesting by considering the interplay of various physical phenomena. It presents a promising pathway for efficient solar thermal power conversion.</div></div>","PeriodicalId":429,"journal":{"name":"Solar Energy Materials and Solar Cells","volume":"280 ","pages":"Article 113273"},"PeriodicalIF":6.3,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142657768","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0