Article
Energy & Fuels
Brian M. Habersberger, Peter Hacke
Summary: This study observed that power loss caused by polarization-type potential-induced degradation (PID-p) in high-performance photovoltaic cells can be recovered through subsequent illumination and prevented in some cases through simultaneous illumination. The resistivity of different encapsulant materials affects the extent of power loss, with low resistivity materials being insensitive to high irradiance while high and intermediate resistivity materials provide some level of protection against irradiance. A simple model based on charge accumulation explains the opposing and interdependent phenomena of degradation via voltage stress and recovery via light exposure that describe a module's susceptibility to power loss.
PROGRESS IN PHOTOVOLTAICS
(2022)
Article
Energy & Fuels
Fabian Fertig, Bernhard Kloeter, Ingmar Hoeger, Kai Petter, Enrico Jarzembowski, Matthias Junghaenel, Christian Klenke, Anika Weihrauch, Michael Schley, Kyunghun Kim, Axel Schwabedissen, Maximilian Kauert, Klaus Duncker, Janko Cieslak, Rene Hoenig, Jessica Scharf, Friederike Kersten, Sven Wasmer, Cangming Ke, Carsten Baer, Christian Gerbig, Lorenzo Burtone, Larissa Niebergall, Matthias Schutze, Martina Queck, Alexander To, Susanne Schulz, Stefan Peters, Ansgar Mette, Martin Schaper, Markus Fischer, Joerg W. Mueller
Summary: Q CELLS has developed a silicon solar cell structure with an energy conversion efficiency exceeding 24%, featuring advanced technologies and a lean processing sequence. This novel solar cell structure has the potential to close the remaining efficiency gap and provide competitive manufacturing costs.
IEEE JOURNAL OF PHOTOVOLTAICS
(2022)
Article
Chemistry, Physical
Lujia Xu, Wenzhu Liu, Haohui Liu, Cangming Ke, Mingcong Wang, Chenlin Zhang, Erkan Aydin, Mohammed Al-Aswad, Konstantinos Kotsovos, Issam Gereige, Ahmed Al-Saggaf, Aqil Jamal, Xinbo Yang, Peng Wang, Frederic Laquai, Thomas G. Allen, Stefaan De Wolf
Summary: This study evaluates the economic impact of thermal effects on PV systems by establishing a temperature-dependent levelized cost of energy (LCOE) model and introducing a new metric, gamma. The investigation focuses on the root causes of heating in solar cells and modules, particularly in crystalline-Si (c-Si) PVs, to quantify ways to mitigate undesired heating effects.
Article
Physics, Applied
Sorren Warkander, Junqiao Wu
Summary: This study explores the dominant techniques in laser-based thermal measurement and presents a method for measuring semiconductor samples without the need for a metal transducer. The feasibility and accuracy of this method are demonstrated through experimental data.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Thermodynamics
Talib K. Murtadha
Summary: The main purpose of this study was to cool the photovoltaic panels using nanofluids in order to improve their performance. The study used a 2 wt% Al2O3/TiO2 hybrid nanofluid coolant and compared its effects with those of previous studies that used pure Al2O3 and TiO2 nanoparticles. Three photovoltaic panels were used, one cooled with the hybrid nanofluid, one cooled with water, and one without cooling. The results showed that cooling with the hybrid nanofluid significantly increased the output power and electrical energy efficiency compared to the other cooling methods.
CASE STUDIES IN THERMAL ENGINEERING
(2023)
Article
Thermodynamics
Bingnan Wang, Shan Jiang, Zhan'ao Tan
Summary: This paper studies the thermal characteristics of bifacial silicon photovoltaic modules and proposes a new model that takes into account the bifaciality and rear irradiance factors. Through experimental verification, the new model shows good agreement with the measured data.
INTERNATIONAL JOURNAL OF GREEN ENERGY
(2023)
Article
Energy & Fuels
Juan Lopez-Garcia, Ebrar Ozkalay, Robert P. Kenny, Laura Pinero-Prieto, David Shaw, Diego Pavanello, Tony Sample
Summary: Bifacial crystalline Silicon (Si) photovoltaic (PV) devices are receiving significant attention from manufacturers and the market due to their enhanced performance compared to traditional monofacial PV devices. This article analyzes and compares different testing methods for the electrical performance of bifacial Si devices at the European Solar Test Installation, and concludes that deviations in P$_{max}$ below 0.9% were obtained for most testing methods except for the double-source approach with a rear reflector where the measurement of the rear irradiance influences the P$_{max}$.
IEEE JOURNAL OF PHOTOVOLTAICS
(2022)
Article
Chemistry, Multidisciplinary
Dang Phuc Nguyen Nguyen, Kristiaan Neyts, Johan Lauwaert
Summary: This study proposes two models, with and without consideration of wind speed, to improve the precision of estimating the operating temperature of outdoor PV modules. The models factor in the variation of solar irradiation over time and the thermal inertia of the PV module, achieving better performance in different time steps.
APPLIED SCIENCES-BASEL
(2021)
Article
Energy & Fuels
Anh Huy Tuan Le, Rabin Basnet, Di Yan, Wenhao Chen, Naomi Nandakumar, Shubham Duttagupta, Johannes P. Seif, Ziv Hameiri
Summary: The temperature coefficient (TC) is crucial for evaluating solar cell performance, and TOPCon cells have shown promising results. This study investigates the temperature dependence of TOPCon cells and finds that the fill factor TC (TCFF) is superior to other cell structures. The observed improvement in passivation quality at higher temperatures has little impact on open-circuit voltage TC.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2021)
Article
Energy & Fuels
Anh Huy Tuan Le, Apoorva Srinivasa, Stuart G. Bowden, Ziv Hameiri, Andre Augusto
Summary: Recently, improvements in surface and contact passivation as well as bulk quality of silicon solar cells have allowed for their operation at higher injections, reducing the dependence on wafer doping. This opens up the possibility of using high-resistivity wafers for practical photovoltaic applications, improving cell efficiency and module reliability. In this study, the performance of Si heterojunction solar cells using a wide range of wafer resistivities is investigated at different temperatures and illumination levels. The results show that the passivation quality of the contacts decreases at higher temperatures, but the impact on cell efficiency is limited, with temperature coefficient of open-circuit voltage still being dominated by the temperature dependence of the intrinsic carrier concentration. Additionally, the cells are found to be more sensitive to temperature variations at lower illumination intensities. It is important to note that the efficiency of cells using high-resistivity wafers is comparable to that of reference cells at any given temperature, suggesting the potential of high-resistivity wafers for solar cells.
PROGRESS IN PHOTOVOLTAICS
(2023)
Article
Energy & Fuels
Raphael Cabal, Nicolas Enjalbert, Sylvain Rousseau, Sebastien Dubois
Summary: Seed-assisted cast-mono silicon for photovoltaic application is a relevant alternative to conventional methods in terms of cost and carbon footprint. However, the industrial deployment of this material is hindered by the propagation of dislocation clusters during crystallization. The study focuses on carrier recombination in regions with different electron concentrations, revealing a temperature-assisted transition of defects and enhanced effects at low electron concentration values.
IEEE JOURNAL OF PHOTOVOLTAICS
(2021)
Article
Energy & Fuels
Emeka H. H. Amalu, Oluwagbemiga A. A. Fabunmi
Summary: This research demonstrates the use of a phase change material to lower the operating temperature of crystalline silicon photovoltaic modules in hot climates, resulting in higher conversion efficiency and improved performance compared to conventional modules.
Article
Chemistry, Physical
Sangmo Kim, Hoang Van Quy, Chung Wung Bark
Summary: In the past few decades, the photovoltaic market has been dominated by silicon-based solar cells, but there has been a recent shift towards flexible solar cell technology due to increasing demand for flexible, lightweight, conformable, and bendable devices. This transition has overcome technological limitations of traditional solar cells and is leading to new paradigms in solar energy conversion systems and flexible electronic devices.
MATERIALS TODAY ENERGY
(2021)
Article
Engineering, Electrical & Electronic
Soulayman Soulayman, Mohamad Hamoud, Mohamad-Amir Hababa, Wassim Sabbagh
Summary: Recent study on the feasibility of solar tracking systems for PV panels in hot regions suggests that a tracking system may not be necessary due to overheating caused by excessive solar irradiance. The conclusion is based on a mathematical model, which is criticized for overestimating the PV module temperature.
JOURNAL OF MODERN POWER SYSTEMS AND CLEAN ENERGY
(2021)
Article
Engineering, Electrical & Electronic
Papul Changmai, Shashank Kumar, Sisir Kumar Nayak, Sanjeev Kumar Metya
Summary: This article proposes a total cross tied (TCT) connection method to address the performance degradation of solar photovoltaic (PV) modules under partial shading conditions. It presents a simple and robust analytical algorithm to estimate the output power of TCT connected modules. The algorithm shows low error and significant performance improvement in practical applications.
IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS
(2022)
Review
Chemistry, Physical
Weijian Chen, Zhixing Gan, Martin A. Green, Baohua Jia, Xiaoming Wen
Summary: This review discusses the mobile ion dynamics in halide perovskites investigated via luminescence spectroscopy combined with confocal microscopy, including mobile ion induced fluorescence quenching, phase segregation in mixed halide hybrid perovskite, and mobile ion accumulation at the interface in perovskite devices. Steady-state and time-resolved luminescence imaging techniques, combined with confocal microscopy, are unique tools for probing ionic dynamics in perovskites, providing invaluable insights on ionic dynamics in nanoscale resolution.
Article
Energy & Fuels
Martin Green, Ewan Dunlop, Jochen Hohl-Ebinger, Masahiro Yoshita, Nikos Kopidakis, Xiaojing Hao
Summary: This article presents consolidated tables showing the highest independently confirmed efficiencies for solar cells and modules, including guidelines for inclusion of results and reviewing new entries since June 2020. It also includes charts showing efficiency improvements since 1993 and an updated list of recognized test centers.
PROGRESS IN PHOTOVOLTAICS
(2021)
Article
Energy & Fuels
Jihoo Lim, Moonyong Kim, Helen Hejin Park, Hyunmin Jung, Sean Lim, Xiaojing Hao, Eunyoung Choi, Sangwook Park, Minwoo Lee, Ziheng Liu, Martin A. Green, Jangwon Seo, Jongsung Park, Jae Sung Yun
Summary: This study quantifies the degradation processes of encapsulated semi-transparent PSCs over time, revealing the main causes and mechanisms of degradation, while confirming the primary reason for irreversible device degradation. Additionally, the research demonstrates that each parameter is likely to be primarily reduced by a single dominant reaction.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2021)
Article
Energy & Fuels
Zibo Zhou, Yajie Jiang, Ned Ekins-Daukes, Mark Keevers, Martin A. Green
Summary: This study describes three textured glass surfaces and evaluates their optical and thermal performance, finding that these surfaces can relatively improve optical transmission and mid-infrared emissivity. The currently most favored inverted pyramid texture may not be the most effective based on optical and radiative enhancement or self-cleaning properties.
IEEE JOURNAL OF PHOTOVOLTAICS
(2021)
Article
Green & Sustainable Science & Technology
Chr. Lamnatou, R. Vaillon, S. Parola, D. Chemisana
Summary: This article provides an overview of photovoltaic/thermal systems categorized by the temperature of the working fluid: low-temperature, medium-temperature, and high-temperature systems. The studies cover a wide range of applications, including building-integrated, domestic, and industrial applications. Additionally, the article critically discusses key challenges related to materials, efficiencies, and technologies in the field of photovoltaic/thermal systems.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Article
Chemistry, Multidisciplinary
Mingrui He, Jialiang Huang, Jianjun Li, Jun Sung Jang, Umesh P. Suryawanshi, Chang Yan, Kaiwen Sun, Jialin Cong, Yu Zhang, Henner Kampwerth, Mahesh P. Suryawanshi, Jinhyeok Kim, Martin A. Green, Xiaojing Hao
Summary: In this study, the performance of kesterite CZTSSe solar cell was significantly improved by incorporating small amounts of Ge and Cd into the absorber, reducing nonradiative recombination and enhancing carrier collection efficiency. The combination of Ge and Cd incorporation led to higher open-circuit voltage, short-circuit current density, and fill factor, resulting in a high conversion efficiency of 11.6%. This research highlights the importance of multiple cation incorporation strategy for systematically manipulating the opto-electronic properties of kesterite materials.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Christophe Lucchesi, Dilek Cakiroglu, Jean-Philippe Perez, Thierry Taliercio, Eric Tournie, Pierre-Olivier Chapuis, Rodolphe Vaillon
Summary: Near-field thermophotovoltaic conversion technology has the potential to efficiently harvest thermal energy close to material surfaces. By demonstrating high power conversion efficiency in experiments, this technology is now competing with other thermal-to-electrical conversion devices and paving the way for efficient photoelectric detection of near-field thermal photons.
Article
Energy & Fuels
Martin A. Green, Ewan D. Dunlop, Jochen Hohl-Ebinger, Masahiro Yoshita, Nikos Kopidakis, Xiaojing Hao
Summary: This article presents consolidated tables showing the highest confirmed efficiencies for solar cells and modules, along with guidelines for inclusion of results and a review of new entries since January 2021.
PROGRESS IN PHOTOVOLTAICS
(2021)
Editorial Material
Energy & Fuels
Rong Deng, Nathan Chang, Martin Green
Summary: The study highlights the importance of considering social factors, such as the attitude of PV owners and the influence of peers, in recycling and reuse interventions for silicon photovoltaic panels. Ignoring these factors can lead to underestimation of the efficacy of such interventions.
Editorial Material
Energy & Fuels
Martin Green, Allen Barnett, Christiana Honsberg, Alison Ciesla, Paul Ashworth
PROGRESS IN PHOTOVOLTAICS
(2021)
Article
Energy & Fuels
Martin A. Green, Ewan D. Dunlop, Jochen Hohl-Ebinger, Masahiro Yoshita, Nikos Kopidakis, Xiaojing Hao
Summary: This article presents consolidated tables showing the highest independently confirmed efficiencies for solar cells and modules, with guidelines outlined for inclusion of results into these tables and a review of new entries since June 2021.
PROGRESS IN PHOTOVOLTAICS
(2022)
Article
Energy & Fuels
Martin A. Green
Summary: The author discusses the need for refinement in silicon's refractive index and absorption coefficient beyond 1200 nm, based on recent luminescent measurements. An updated dataset for lightly doped silicon is presented, providing optical parameters over a broader temperature range with temperature coefficients included to improve accuracy.
PROGRESS IN PHOTOVOLTAICS
(2022)
Review
Physics, Applied
Anita W. Y. Ho-Baillie, Jianghui Zheng, Md Arafat Mahmud, Fa-Jun Ma, David R. McKenzie, Martin A. Green
Summary: Organic-inorganic metal halide perovskite solar cells have shown rapid advancements in energy conversion efficiency improvement, making them a promising technology for next-generation, low-cost, high-efficiency photovoltaics, especially in multi-junction tandem cells. Double-junction tandem cells have efficiency limits up to 45%, surpassing those of single-junction solar cells. This review highlights recent progress in perovskite tandem solar cells and discusses strategies for further improving their efficiencies.
APPLIED PHYSICS REVIEWS
(2021)
Editorial Material
Energy & Fuels
Alejandro Datas, Mathieu Francoeur, Makoto Shimizu, Rodolphe Vaillon
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2022)
Article
Chemistry, Physical
Daniel Chemisana, Oriol Teixido, Rodolphe Vaillon
Summary: A new class of thermophotovoltaic cells can convert thermal radiation power from high temperature sources into electrical power. By controlling the current density and utilizing a silicon vertical multijunction cell at high voltage, the resistive losses are reduced. With photonic engineering, higher efficiency can be achieved under high temperature conditions.
ACS ENERGY LETTERS
(2023)
