Article
Energy & Fuels
Hongyang Li, Chengzhi Hu, Yichuan He, Dawei Tang, Kuiming Wang
Summary: This study investigates the melting behavior of phase change material with longitudinal fins in a latent heat storage unit, utilizing two-dimensional models with natural convection and optimizing structural parameters. Strategies to improve heat transfer intensity in the hard-melting region at the bottom of the tube are implemented, demonstrating that thickening bottom fins and thinning top fins can accelerate the melting process.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Energy & Fuels
Nidhal Ben Khedher, Jasim M. Mahdi, Anmar Dulaimi, Ilia Shojaeinasab Chatroudi, Mohammadreza Ebrahimnataj Tiji, Raed Khalid Ibrahem, A. Yvaz, Pouyan Talebizadehsardari
Summary: Phase-change materials (PCMs) have the potential to address the mismatch between energy supply and demand due to their energy savings, uniform operating temperature, and low cost. This study demonstrates the advantage of using arc-shaped fins as thermal enhancers to improve the thermal functionality of PCM in a storage system. Parametric studies show that modifying the dimensions and angles of the fin configuration can further enhance the heat storage rate.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Thermodynamics
Mehdi Miansari, Aghil Jafarzadeh, Hossein Arasteh, Davood Toghraie
Summary: The study showed that increasing shell-side fluid velocity can improve heat transfer efficiency, and passing cold water on the shell side and hot water through the tube side also contributes to better heat transfer. Comparatively, circular fins demonstrated more significant effect on the performance of the heat exchanger than cut circular fins under different conditions.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2021)
Article
Thermodynamics
Turo Valikangas, Mikko Folkersma, Miikka Dal Maso, Tuomo Keskitalo, Petteri Peltonen, Ville Vuorinen
Summary: This study investigated the optimal tube arrangements for a fin-and-tube heat exchanger (FTHE) in marine environments with two different air types. Two optimal tube patterns were identified for unfiltered air and filtered air conditions. Manufacturing restrictions were found to significantly limit the maximum achievable efficiency of the tube pattern.
APPLIED THERMAL ENGINEERING
(2022)
Article
Energy & Fuels
Ci Ao, Suying Yan, Long Zhao, Yuting Wu
Summary: Latent heat thermal energy storage (LHTES) units are an effective solution for energy balancing. To improve the heat transfer efficiency of phase change material (PCM) in LHTES units, a series of three-tube heat exchangers with longitudinal fins were designed. The study focused on the number, length, thickness, and arrangement of the fins. Results showed that thicker fins significantly reduced the melting time of the PCM. Thin long fins had a higher melting rate and were 10.6% faster than short thick fins. Additionally, a fin length of 30 mm was found to have a more reasonable structure and shortened the heat storage time by 18.0%. Arranging lower long and upper short fins enhanced heat transfer. N=20 was considered the optimal fin number due to diminishing heat storage capacity. Thus, an optimal fin design (N=20, L=30, W=1) reduced the PCM's total melting time by 71.2%. It is concluded that adding fins for heat transfer enhancement is more beneficial and saves energy charging time.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Computer Science, Interdisciplinary Applications
Nidhal Ben Khedher, Jasim M. Mahdi, Hasan S. Majdi, Koorosh Khosravi, Waleed Khalid Al-Azzawi, Fadhil Abbas Al-Qrimli, Sami Dhahbi, Pouyan Talebizadehsardari
Summary: This research explores the potential of dimple-shaped fins for enhancing PCM thermal response, with results showing that increasing the number of dimple fins can significantly improve heat storage rates. Further enhancements can be achieved by optimizing the position and spacing of fins, as well as utilizing staggered fin distribution.
JOURNAL OF COMPUTATIONAL DESIGN AND ENGINEERING
(2022)
Article
Energy & Fuels
Ashok Kumar, S. Arivazhagan, K. Muninathan
Summary: The preservation of thermal energy is a significant problem that needs to be resolved. This study focuses on designing and analyzing a vertical shell and tube type thermal energy storage system (TESS) using water as heat transfer fluid (HTF) and paraffin wax RT58 as phase change material (PCM). The results demonstrate that the PCM can act as a better alternative for energy storage medium compared with the present solar energy storage methods.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Engineering, Multidisciplinary
Nidhal Ben Khedher, Hussein Togun, Azher M. M. Abed, Hayder I. I. Mohammed, Jasim M. M. Mahdi, Raed Khalid Ibrahem, Wahiba Yaici, Pouyan Talebizadehsardari, Amir Keshmiri
Summary: This study aims to investigate the impact of circular Y-shaped fins on a two-pipe latent heat-saving unit compared with conventional circular fins, in order to overcome the weak thermal conduction of phase change materials (PCM). The system is placed in a straight-up orientation, with the PCM located in the annulus and hot water used to charge the PCM. Various geometric factors of the fins, such as stem length, angle of the tributaries, and number of Y-shaped fins, are analyzed. The sensitivity analysis evaluates the influence of Reynolds number and temperature of the working fluid on the melting time and rate, with results showing that increasing fin height and number, and reducing tributary angles lead to improved system performance. Increasing Reynolds number and raising working fluid temperature also result in significant reductions in melting time.
ENGINEERING APPLICATIONS OF COMPUTATIONAL FLUID MECHANICS
(2023)
Article
Thermodynamics
Ci Ao, Suying Yan, Wenqi Hu, Long Zhao, Yuting Wu
Summary: This study introduces a novel V-shaped fin design to enhance the melting performance of phase change material. The effects of different fin angles, lengths, numbers, and arrangements on the heat transfer performance of the heat storage unit were studied. The results show that adding more and longer fins at the bottom of the unit can significantly improve the heat storage efficiency and reduce the melting time.
APPLIED THERMAL ENGINEERING
(2022)
Article
Thermodynamics
M. Sanchouli, S. Payan, A. Payan, S. A. Nada
Summary: This paper investigates the enhancement of thermal performance of phase change material in a double-tube heat exchanger using new grid annular fins. The study shows that the new grid fins can reduce melting time and increase energy storage when the fin spacing is optimized. The importance of the arrangement of grid annular fins components is demonstrated, and the non-uniform distribution of grids is considered for improved performance.
CASE STUDIES IN THERMAL ENGINEERING
(2022)
Article
Thermodynamics
Mohammad Shafiey Dehaj, Hassan Hajabdollahi
Summary: In this study, a constructal (branch type) fin and tube heat exchanger (FTHE) is modeled and optimized, with a 6.65% improvement in maximum effectiveness observed in the branch type condition. Lower volume is selected in the second section compared to the first section in the constructal state.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2021)
Article
Thermodynamics
Azim Dogus Tuncer, Adnan Sozen, Ataollah Khanlari, Emine Yagiz Gurbuz, Halil Ibrahim Variyenli
Summary: This study investigates the effect of adding fins on the thermal performance of a horizontal shell and helically coiled tube heat exchanger. Results show that integrating fins over the coil can increase turbulence intensity and improve heat transfer, with an average improvement of 10% in the heat transfer coefficient. The overall heat transfer coefficient can be enhanced by an average of 10.6% by adding fins, with the highest improvement reaching 15%.
APPLIED THERMAL ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Jung-Shun Chen, Shou-Yen Chao, Ching-Che Chen
Summary: With the progress in data mining, deep learning, and artificial intelligence, the demand for datacenters is increasing globally. This study investigated the effects of hydrophilic/hydrophobic coatings on the performance of fin-and-tube heat exchangers in reducing pressure drop and water-condensate splash. The results showed that hydrophilic surface coating is effective in reducing both pressure drop and condensate splash, while hydrophobic surface coating should be applied with caution as it increases both pressure drop and water splash.
APPLIED SCIENCES-BASEL
(2023)
Article
Energy & Fuels
Vahid Safari, Hossein Abolghasemi, Leila Darvishvand, Babak Kamkari
Summary: This study evaluates the combined effect of fin configuration and eccentricity of heat transfer tube on the melting behavior of phase change material (PCM) inside shell and tube heat exchangers. Experimental findings show that the eccentric tube HX and bifurcated fin configuration can significantly reduce melting time, while numerical simulations indicate that bifurcations increase total heat transfer rate.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Engineering, Multidisciplinary
Mohamed A. Alnakeeb, Mahmoud A. Saad, Mohamed A. Hassab
Summary: Numerical study on thermal and hydraulic performance of a fin and flat tube heat exchanger with various aspect ratios revealed that the flat-tube aspect ratio has a significant effect on pressure drop and heat transfer per unit fan power. It is recommended to choose flat tubes with lower aspect ratios to reduce energy consumption and improve overall performance.
ALEXANDRIA ENGINEERING JOURNAL
(2021)
Article
Engineering, Multidisciplinary
K. Ghadamkheir, J. Zareei, Xiaohu Yang, M. Hatami
Summary: Diesel engines play an important role in transportation, but the main issues are the high levels of CO2 and soot emissions. A numerical study found that blending oxymethylene ether with diesel can improve engine performance and reduce emissions. The results showed that using oxymethylene ether can significantly decrease soot and NOx emissions by over 80%, and also reduce CO2 emissions by approximately 66%.
ALEXANDRIA ENGINEERING JOURNAL
(2023)
Article
Engineering, Multidisciplinary
Gang Liu, Tian Xiao, Xinyi Wang, Xiaohu Yang, Hailong Li
Summary: Latent heat thermal storage (LHTS) system is crucial for reducing environmental pollution. The position of the inner heating tube in the shell-and-tube heat accumulator plays a vital role in thermal storage. A two-dimensional numerical model is developed to analyze the effect of the inner tube position on phase transition. The results show that when the inner tube is 12 mm from the center, the structure has the minimum full melting time of 3480 s, and the full melting time can be reduced by 13.4% compared to when the inner tube is 0 mm from the center.
ALEXANDRIA ENGINEERING JOURNAL
(2023)
Article
Energy & Fuels
Madeleine Martinsen, Yuanye Zhou, Erik Dahlquist, Jinyue Yan, Konstantinos Kyprianidis
Summary: Initially, AI focused on diagnostics but lacked trust and industry adoption due to manual programming and limited computer capacity. However, the introduction of new tools and technologies such as PLS, PCA, ANN, and IoT paved the way for AI's resurgence. Today, machine learning techniques like deep learning and ANN are creating interesting use cases.
Article
Thermodynamics
Xinyu Huang, Fangfei Li, Yuanji Li, Xiangzhao Meng, Xiaohu Yang, Bengt Sunden
Summary: The melting performance of a rotating triplex-tube latent heat thermal energy storage unit is optimized using the Taguchi design and response surface method. The effects of fin distribution, fin number, and fin material on the melting performance are quantitatively revealed. The optimal design reduces the total melting time and increases the average heat absorption rate compared to the original structure.
Article
Engineering, Electrical & Electronic
Yanda Huo, Peng Li, Haoran Ji, Hao Yu, Jinyue Yan, Jianzhong Wu, Chengshan Wang
Summary: This paper proposes a data-driven voltage control method that coordinates on-load tap changers (OLTCs) and distributed generator (DG) inverters on multiple time-scales. The method uses multi-source data to establish a data-driven control model and ensures voltage control performance under the partial measurements in practical active distribution networks (ADNs).
IEEE TRANSACTIONS ON POWER SYSTEMS
(2023)
Article
Multidisciplinary Sciences
Lingfei Qi, Yuan Wang, Juhuang Song, Cunhong Yin, Jinyue Yan, Zutao Zhang
Summary: This paper investigates the feasibility of using roof photovoltaic (PV) systems in water villas in the Maldives. Three islands- Ayada Maldives, Angaga Island Resort, and JA Manafaru - were studied as case examples. The potential PV installations in these islands were found to be 1,410, 445, and 742 kW, with corresponding annual power generation of 2.04, 0.64, and 1.12 GWh. The profits over a 25-year life cycle for these islands were estimated to be 4.86, 1.52, and 2.90 million USD, with payback periods ranging from 6 to 7 years.
Article
Construction & Building Technology
Xinyu Huang, Fangfei Li, Liu Lu, Ze Li, Xiaohu Yang, Jinyue Yan
Summary: Latent heat storage technology is important for utilizing clean energy in building heating, but the low thermal conductivity of heat storage medium hinders its large-scale application. This paper investigates the solidification performance of a triplex-tube latent heat thermal energy storage unit using the rotation mechanism. Different design optimization methods are employed for in-depth analysis. The results show that the optimized structure significantly improves heat release rate and reduces solidification time.
ENERGY AND BUILDINGS
(2023)
Article
Green & Sustainable Science & Technology
Yuanji Li, Zhaoyang Niu, Xinyu Gao, Ruiyang Ji, Xiaohu Yang, Jinyue Yan
Summary: The use of metal foam as a filler in heat storage tanks compensates for the low thermal conductivity of phase change materials. However, it can impede natural convection. Inclining the upper surface of the metal foam further strengthens natural convection in the upper region. Numerical simulations showed that a counterclockwise inclination pattern resulted in more time savings.
Article
Green & Sustainable Science & Technology
Zhengguang Liu, Wene Wang, Yuntian Chen, Lili Wang, Zhiling Guo, Xiaohu Yang, Jinyue Yan
Summary: It is widely recognized that climate change has drawn extensive attention to carbon sequestration in solar greenhouse plants. Solar greenhouse technologies have played and will continue to play a leading role in this crucial transition. The main objective of this research is to investigate the energy efficiency and carbon sequestration potential of a solar-assisted ground-source heat pump (SAGSHP) heating system. This hybrid system, combining a horizontal ground-source heat pump (GSHP) system with PVT and heat storage, effectively meets the heating demands of a greenhouse and functions as a positive energy building. Four plant species, including cucumber, tomato, cowpea, and lettuce, were selected for comparison of carbon absorption effects. The results demonstrate that the hybrid system outperforms conventional systems, with a coefficient of performance (COP) of 6.71 during peak hours and PVT efficiency over 57.88%, satisfying the heat load of the greenhouse while maintaining comfortable indoor temperatures. Additionally, tomato exhibited the highest photosynthetic carbon sequestration of 3522 kgCO(2).m(-2), while cowpea showed the strongest daily carbon sequestration capacity at 26.86 gCO(2)m(-2)d(-1) and better economic income. Through the implementation of this enhanced solar greenhouse, solar energy utilization can be enhanced, flexible interaction between energy and information flow can be established, and a promising option for sustainable building design can be created.
Review
Energy & Fuels
Lingfei Qi, Yuan Wang, Lingji Kong, Minyi Yi, Juhuang Song, Daning Hao, Xianzheng Zhou, Zutao Zhang, Jinyue Yan
Summary: This paper focuses on the manufacturing and recycling technologies of automotive lithium-ion battery (ALIB). It provides a comprehensive review on ALIB manufacturing process, cost, energy consumption, and recycling. The paper also identifies some challenges and recommends further research to address these gaps.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Thermodynamics
Zhao Du, Xinyu Huang, Yuanji Li, Xiaohu Yang, Hailong Li
Summary: This paper investigates the impact of longitudinal fins on the melting and solidification process in a phase change heat storage unit using experiments and numerical simulations. Optimization of fin position and structure is conducted to enhance heat transfer efficiency, leading to a reduction in charging and discharging time as well as improved heat absorption and release rates.
CASE STUDIES IN THERMAL ENGINEERING
(2023)
Article
Thermodynamics
Bo Wang, Tao Song, Aihua Li, Yaqi Li, Gao Shu, Yuanji Li, Xiaohu Yang
Summary: In this study, the dynamic behavior of wall temperature in an air duct was analyzed using an experimental system, investigating the impact of a pre-swirling device on the increase in wall temperature. The results revealed a lower wall temperature in the presence of the pre-swirl, with a maximum reduction of 55.7%. This study demonstrates that the pre-swirling device effectively diminishes the increase in wall temperature and shows potential applications.
CASE STUDIES IN THERMAL ENGINEERING
(2023)
Article
Thermodynamics
Ze Li, Xinyu Gao, Xinyu Huang, Jiayi Gao, Xiaohu Yang, Ming-Jia Li
Summary: The Tactical Unit Algorithm (TUA) is a novel metaheuristic algorithm that demonstrates higher search accuracy, faster convergence, and better stability in solving optimal chiller loading problems.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Rukun Hu, Xinyu Huang, Xinyu Gao, Liu Lu, Xiaohu Yang, Bengt Sund
Summary: This study examines the impact of applying bottom cross-cut on PCM's spatial distribution in a horizontal LHTES unit using numerical simulation. The findings show that bottom cross-cut can improve the heat storage rate and natural convection heat transfer gain.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2024)
Article
Thermodynamics
Tian Xiao, Xinyu Huang, Liu Lu, Junfei Guo, Xiaohu Yang
Summary: Latent heat thermal storage systems have the potential for industrial waste heat recovery, and using open-cell metal foams can greatly improve the heat storage efficiency by enhancing heat conduction.
INTERNATIONAL JOURNAL OF GREEN ENERGY
(2023)
Article
Energy & Fuels
Shahriyar Safat Dipta, Md Habibur Rahaman, Walia Binte Tarique, Ashraful Hossain Howlader, Ayush Pratik, John A. Stride, Ashraf Uddin
Summary: Implementing a double-sided passivation approach can enhance the performance of n-i-p structured PSCs and improve the stability and photovoltaic properties of the cells.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
Daniel Ourinson, Andreas Brand, Andreas Lorenz, Marwan Dhamrin, Sebastian Tepner, Michael Linse, Nathalie Goettlicher, Kosuke Tsuji, Jonas D. Huyeng, Florian Clement
Summary: This work presents two approaches to reduce the amount of silver on the rear side of M2-sized industrial iTOPCon solar cells. The Cu-based approach shows promise with similar power conversion efficiency compared to the conventional approach, while the Al-based approach exhibits some limitations but demonstrates the potential of such type of contact for iTOPCon solar cells.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
Abasifreke Ebong, Donald Intal, Sandra Huneycutt, Thad Druffel, Ruvini Dharmadasa, Kevin Elmer, Apolo Nambo
Summary: This study demonstrates the successful metallization of a PERC silicon solar cell using screen-printable copper (Cu) paste. The Cu paste contains antioxidant additives and diffusion inhibitors to prevent oxidation and diffusion of Cu. The Cu-printed cells achieved an efficiency of 19% and showed no Cu diffusion after characterization tests. The long-term stability and effectiveness of the Cu diffusion barrier were also confirmed.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
Senami Zogbo, Wilfried Favre, Olivier Bonino, Marie-Estelle Gueunier-Farret
Summary: Measuring specific contact resistivity (pc) is crucial for interface engineering in high efficiency solar cells. The Transfer Length Method (TLM) is commonly used for evaluating layer sheet resistance (Rsheet) and pc, but it is not suitable for metal/Transparent Conductive Oxide (TCO) interface evaluation in silicon heterojunction (SHJ) cells. This study investigates the parameters that restrict current confinement within the TCO, including mid-gap trap density (Dit) at the a-Si:H/c-Si interface and the activation energy (Ea = Ec - EF) variation of a-Si:H contact layers.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
Jean-Baptiste Charpentier, Philippe Voarino, Julien Gaume
Summary: The phenomenon of ribbon lengthening in PV modules exposed to thermal cycling is not well explained in the literature. In this study, a three layers model is proposed to explain this effect, and the predictions of the model are validated through finite element method simulations and experiments. The results show that the model predictions are consistent with the indirect measurements, but not with the direct measurements. Additionally, it is inferred that the encapsulant plays a role after the solder failure.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
Jean-Baptiste Charpentier, Philippe Voarino, Julien Gaume
Summary: This study investigates the problematic ribbon lengthening observed in PV modules exposed to high amplitude thermal cycling. A simplified system model is proposed and accurate predictions are obtained using the Finite Element Method. The results show that the thickness of the encapsulant has a substantial impact on the lengthening of the ribbons.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
S. Catalan-Gomez, E. Martinez Castellano, M. Schwarz, M. Montes Bajo, L. Dorado Vargas, A. Gonzalo, A. Redondo-Cubero, A. Gallego Carro, A. Hierro, J. M. Ulloa
Summary: This study investigates the use of core-shell gallium nanoparticles as functional light scatterers on solar cells. By optimizing the nanoparticle size, the short-circuit current of the solar cells is significantly improved. The underlying physical mechanism is studied through optical measurements and simulations, and a method to reduce the plasmonic effect of the nanoparticles is demonstrated.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
M. Gamel, G. Lopez, A. M. Medrano, A. Jimenez, A. Datas, M. Garin, I. Martin
Summary: In this study, a highly reflective ohmic contact to p-type c-Ge material is demonstrated, which can improve the efficiency of thermophotovoltaic devices. The experimental results show that this contact can simultaneously meet the requirements of good back surface passivation, low electrical resistivity, and high reflectivity. Moreover, simulations suggest that implementing these back contacts has the potential to achieve conversion efficiencies comparable to high-efficiency c-Ge TPV cells.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
Hongyang Wei, Qing Xu, Dongchu Chen, Min Chen, Menglei Chang, Xiufang Ye
Summary: This study prepared solar selective absorption films based on anodic aluminum oxide (AAO) photonic crystals using a unique electrodeposition method. The Co-Ag electrodeposited film exhibited superior solar selective absorption properties and thermal stability.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
Ankit Kumar, Ankit Chauhan, Jordi Llobet, Helder Fonseca, Patricia C. Sousa, Carlos Calaza, Gil Shalev
Summary: This study found that decorating subwavelength arrays with SiO2 quasi-nanolenses (qNL arrays) can enhance the absorption of the solar spectrum. Optical absorption mechanisms in qNL arrays were investigated using near-field scanning optical microscopy (NSOM), revealing that the enhancement is a result of the combination of effective antireflection coating, increased optical interactions between adjacent dielectrics for elevated light trapping, and strong light concentration due to the presence of qNLs.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
S. Pingel, T. Wenzel, N. Goettlicher, M. Linse, L. Folcarelli, J. Schube, S. Hoffmann, S. Tepner, Y. C. Lau, J. Huyeng, A. Lorenz, F. Clement
Summary: This study demonstrates the potential to reduce silver consumption in highly efficient SHJ cells through fine-line screen printing using low temperature paste with various screens. The results show that using finer mesh allows for narrower grid fingers and lower resistance, leading to improved cell efficiency. Simulation results indicate that module wire configuration is crucial for reducing silver consumption.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
Xibo He, Jun Qiu, Wei Wang, Yicheng Hou, Yong Shuai
Summary: This paper proposes a novel phase change material with high thermal conductivity and stability for fast photo-thermal conversion and storage. The experimental results demonstrate excellent durability and stability of the phase change material, with good performance in thermal conductivity and thermal storage efficiency.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
Qingyuan Liu, Lin Wang, Zheng Liu, Guohua Liu
Summary: A new evaporating structure consisting of liquid marble with tunable nanowire array is proposed to enhance solar evaporation. The experiments show that the liquid marble with nanowire array exhibits outstanding evaporation performance, which has significant implications for seawater desalination or wastewater treatment.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
Hao Liu, Qiming Liu, Jinpei Liu, Yonggang Zhao, Yingjie Yu, Yue An, Ganghui Wei, Yanzheng Li, Yujun Fu, Junshuai Li, Deyan He
Summary: Moisture in the air is identified as the main cause of performance degradation in organic-inorganic hybrid solar cells. Exposure to air leads to the growth of thin oxide layer on the interface and the formation of silver sulfide, increasing the series resistance and decreasing the fill factor, thus degrading the cell performance.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
E. Blanco, P. Martin, M. Dominguez, P. Fernandez-Palacios, I. Lombardero, C. Sanchez-Perez, I. Garcia, C. Algora, M. Gabas
Summary: This study addresses the lack of optical parameters for p-type Ge wafers by determining the complex refractive indices of commercial Ge wafers with varying doping levels. The obtained data successfully reproduces the critical points associated with interband transitions and absorption features below the bandgap. The refractive indices were validated through experimental measurements and solar cell simulations.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
