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1.
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10 p, 1.2 MB |
Solution-phase synthesis and photoluminescence of quaternary chalcohalide semiconductors
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Roth, Alison N. (Iowa State University. Department of Chemistry) ;
Opare-Addo, Jemima (Iowa State University. Department of Chemistry) ;
Gi, Eunbyeol (Iowa State University. Department of Chemistry) ;
Mena Fernández, Silvia (Universitat Autònoma de Barcelona. Departament de Química) ;
Guirado López, Gonzalo (Universitat Autònoma de Barcelona. Departament de Química) ;
Schaller, Richard D. (Northwestern University. Department of Chemistry (US)) ;
Smith, Emily A. (Iowa State University. Department of Chemistry) ;
Vela, Javier (Iowa State University. Department of Chemistry)
Mixed-metal chalcohalide semiconductors have emerged as promising candidates for photovoltaic applications. However, preparation of these multinary compounds using solution-phase techniques remains particularly challenging compared to traditional solid-state methods. [...]
2023 -  10.1021/acs.chemmater.3c00011
Chemistry of materials, Vol. 35, Issue 5 (March 2023) , p. 2165-2172
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2.
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12 p, 2.1 MB |
Enabling full-scale grain boundary mitigation in polycrystalline perovskite solids
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Zhao, Lichen (Peking University. State Key Laboratory for Artificial Microstructure and Mesoscopic Physics) ;
Tang, PengYi (Institut Català de Nanociència i Nanotecnologia) ;
Luo, Deying (Peking University. State Key Laboratory for Artificial Microstructure and Mesoscopic Physics) ;
Dar, Ibrahim (University of Cambridge. Department of Physics) ;
Eickemeyer, Felix (École Polytechnique Fédérale de Lausanne. Laboratory of Photonics and Interfaces) ;
Arora, Neha (University of Cambridge. Department of Physics) ;
Hu, Qin (University of Massachusetts. Polymer Science and Engineering Department) ;
Luo, Jingshan (École Polytechnique Fédérale de Lausanne. Laboratory of Photonics and Interfaces) ;
Liu, Yuhang (École Polytechnique Fédérale de Lausanne. Laboratory of Photonics and Interfaces) ;
Zakeeruddin, Shaik Mohammed (École Polytechnique Fédérale de Lausanne. Laboratory of Photonics and Interfaces) ;
Hagfeldt, Anders (École Polytechnique Fédérale de Lausanne. Laboratory of Photomolecular Science) ;
Arbiol i Cobos, Jordi (Institut Català de Nanociència i Nanotecnologia) ;
Huang, Wei (Nanjing Tech University. Key Laboratory of Flexible Electronics & Institute of Advanced Materials) ;
Gong, Qihuang (Peking University. State Key Laboratory for Artificial Microstructure and Mesoscopic Physics) ;
Russell, Thomas (University of Massachusetts. Polymer Science and Engineering Department) ;
Friend, Richard Henry (University of Cambridge. Department of Physics) ;
Grätzel, Michael (École Polytechnique Fédérale de Lausanne. Laboratory of Photonics and Interfaces) ;
Zhu, Rui (Peking University. State Key Laboratory for Artificial Microstructure and Mesoscopic Physics)
There exists a considerable density of interaggregate grain boundaries (GBs) and intra-aggregate GBs in polycrystalline perovskites. Mitigation of intra-aggregate GBs is equally notable to that of interaggregate GBs as intra-aggregate GBs can also cause detrimental effects on the photovoltaic performances of perovskite solar cells (PSCs). [...]
2022 - 10.1126/sciadv.abo3733
Science advances, Vol. 8, issue 35 (Sep. 2022) , art. eabo3733
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3.
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18 p, 2.1 MB |
Stoichiometry modulates the optoelectronic functionality of zinc phosphide (Zn3−xP2+x)
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Stutz, Elias Z. (Ecole Polytechnique Fédérale de Lausanne. Laboratory of Semiconductor Materials) ;
Ramanandan, Santhanu P. (Ecole Polytechnique Fédérale de Lausanne. Laboratory of Semiconductor Materials) ;
Flór, Mischa (Ecole Polytechnique Fédérale de Lausanne. Laboratory of Semiconductor Materials) ;
Paul, Rajrupa (Ecole Polytechnique Fédérale de Lausanne. Laboratory of Semiconductor Materials) ;
Zamani, Mahdi (Ecole Polytechnique Fédérale de Lausanne. Laboratory of Semiconductor Materials) ;
Escobar Steinvall, Simon (Ecole Polytechnique Fédérale de Lausanne. Laboratory of Semiconductor Materials) ;
Sandoval Salaiza, Diego Armando (Ecole Polytechnique Fédérale de Lausanne. Laboratory of Semiconductor Materials) ;
Xifra Montesinos, Clàudia (Institut Català de Nanociència i Nanotecnologia) ;
Spadaro, Maria Chiara (Institut Català de Nanociència i Nanotecnologia) ;
Leran, Jean-Baptiste (Ecole Polytechnique Fédérale de Lausanne. Laboratory of Semiconductor Materials) ;
Litvinchuk, Alexander P. (University of Houston. Department of Physics) ;
Arbiol i Cobos, Jordi (Institut Català de Nanociència i Nanotecnologia) ;
Fontcuberta i Morral, Anna (École Polytechnique Fédérale de Lausanne. Institute of Physics) ;
Dimitrievska, Mirjana (Ecole Polytechnique Fédérale de Lausanne. Laboratory of Semiconductor Materials)
Predictive synthesis-structure-property relationships are at the core of materials design for novel applications. In this regard, correlations between the compositional stoichiometry variations and functional properties are essential for enhancing the performance of devices based on these materials. [...]
2022 - 10.1039/d2fd00055e
Faraday Discussions, Vol. 239 (Oct. 2022) , p. 202-218
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4.
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14 p, 1.9 MB |
Non-linear sliding mode controller for photovoltaic panels with maximum power point tracking
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Gohar Ali, Hina (Universitat Autònoma de Barcelona. Departament de Telecomunicació i Enginyeria de Sistemes) ;
Vilanova i Arbós, Ramon (Universitat Autònoma de Barcelona. Departament de Telecomunicació i Enginyeria de Sistemes) ;
Herrera, Jorge (Universidad de Bogotá Jorge Tadeo Lozano. Departamento de Ingeniería) ;
Tobón, Andrés (Instituto Tecnológico Metropolitano (Medellín, Colòmbia). Departamento de Electrónica y Telecomunicaciones) ;
Peláez-Restrepo, J. (Instituto Tecnológico Metropolitano (Medellín, Colòmbia). Departamento de Electrónica y Telecomunicaciones)
In this paper, nonlinear sliding mode control (SMC) techniques formulated for extracting maximum power from a solar photovoltaic (PV) system under variable environmental conditions employing the perturb and observe (P and O) maximum power point tracking (MPPT) technique are discussed. [...]
2020 - 10.3390/pr8010108
Processes, Vol. 8 , Issue 1 (January 2020) , art. 108
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5.
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25 p, 1.2 MB |
Control of the polarization of ferroelectric capacitors by the concurrent action of light and adsorbates
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Liu, Fanmao (Institut de Ciència de Materials de Barcelona) ;
Fina, Ignasi (Institut de Ciència de Materials de Barcelona) ;
Sauthier, Guillaume (Institut Català de Nanociència i Nanotecnologia) ;
Sánchez Barrera, Florencio (Institut de Ciència de Materials de Barcelona) ;
Rappe, Andrew M. (University of Pennsylvania. Department of Chemistry) ;
Fontcuberta, Josep (Institut de Ciència de Materials de Barcelona)
Ferroelectric perovskites hold promise of enhanced photovoltaic efficiency and photocatalytic activity. Consequently, the photoresponse of oxide ferroelectric thin films is an active field of research. [...]
2018 - 10.1021/acsami.8b05751
ACS applied materials & interfaces, Vol. 10, issue 28 (July 2018) , p. 23968-23975
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6.
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18 p, 5.3 MB |
Chattering Free Adaptive Sliding Mode Controller for Photovoltaic Panels with Maximum Power Point Tracking
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Gohar Ali, Hina (Universitat Autònoma de Barcelona. Departament de Telecomunicació i Enginyeria de Sistemes) ;
Vilanova i Arbós, Ramon (Universitat Autònoma de Barcelona. Departament de Telecomunicació i Enginyeria de Sistemes)
Photovoltaic system is utilized to generate energy that relies upon the ecological conditions, for example, temperature, irradiance, and the load associated with it. Considering the non-linear component of photovoltaic (PV) array and the issue of low effectiveness because of the variable natural conditions, the Maximum Power Point Tracking (MPPT) method is required to extract the maximum power from the PV system. [...]
2020 - 10.3390/en13215678
Energies, Vol. 13, Núm. 21 (November 2020) , art. 5678
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7.
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15 p, 1.3 MB |
Photoflexoelectric effect in halide perovskites
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Shu, Longlong (Nanchang University. School of Materials Science and Engineering) ;
Ke, Shanming (Nanchang University. School of Materials Science and Engineering) ;
Fei, Linfeng (Nanchang University. School of Materials Science and Engineering) ;
Huang, Wenbin (Chongqing University) ;
Wang, Zhiguo (Chongqing University) ;
Gong, Jinhui (Nanchang University. School of Materials Science and Engineering) ;
Jiang, Xiaoning (North Carolina State University. Department of Mechanical and Aerospace Engineering) ;
Wang, Li (Nanchang University. School of Materials Science and Engineering) ;
Li, Fei (Xi'an Jiao Tong University) ;
Lei, Shuijin (Nanchang University. School of Materials Science and Engineering) ;
Rao, Zhenggang (Nanchang University. School of Materials Science and Engineering) ;
Zhou, Yangbo (Nanchang University. School of Materials Science and Engineering) ;
Zheng, Ren-Kui (Nanchang University. School of Materials Science and Engineering) ;
Yao, Xi (Xi'an Jiao Tong University) ;
Wang, Yu (Nanchang University. School of Materials Science and Engineering) ;
Stengel, Massimiliano (Institut de Ciència de Materials de Barcelona) ;
Catalan, Gustau (Institut Català de Nanociència i Nanotecnologia)
Harvesting environmental energy to generate electricity is a key scientific and technological endeavour of our time. Photovoltaic conversion and electromechanical transduction are two common energy-harvesting mechanisms based on, respectively, semiconducting junctions and piezoelectric insulators. [...]
2020 - 10.1038/s41563-020-0659-y
Nature materials, Vol. 19, Issue 6 (June 2020) , p. 605-609
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8.
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9 p, 3.3 MB |
Unraveling the Impact of Halide Mixing on Perovskite Stability
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Hieulle, Jeremy (Okinawa Institute of Science and Technology Graduate University) ;
Wang, Xiaoming (University of Toledo. Department of Physics and Astronomy and Wright) ;
Stecker, Collin (Okinawa Institute of Science and Technology Graduate University) ;
Son, Dae-Yong (Okinawa Institute of Science and Technology Graduate University) ;
Qiu, Longbin (Okinawa Institute of Science and Technology Graduate University) ;
Ohmann, Robin (Okinawa Institute of Science and Technology Graduate University) ;
Ono, Luis K. (Okinawa Institute of Science and Technology Graduate University) ;
Mugarza, Aitor (Institut Català de Nanociència i Nanotecnologia) ;
Yan, Yanfa (University of Toledo. Department of Physics and Astronomy and Wright) ;
Qi, Yabing (Okinawa Institute of Science and Technology Graduate University)
Increasing the stability of perovskites is essential for their integration in commercial photovoltaic devices. Halide mixing is suggested as a powerful strategy toward stable perovskite materials. However, the stabilizing effect of the halides critically depends on their distribution in the mixed compound, a topic that is currently under intense debate. [...]
2019 - 10.1021/jacs.8b11210
Journal of the American Chemical Society, Vol. 141, Issue 8 (February 2019) , p. 3515-3523
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9.
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36 p, 830.9 KB |
Giant bulk photovoltaic effect in solar cell architectures with ultra-wide bandgap Ga2O3 transparent conducting electrodes
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Perez-Tomas, Amador (Institut Català de Nanociència i Nanotecnologia) ;
Chikoidze, Ekaterine (Université de Versailles Saint Quentin en Yvelines - CNRS) ;
Dumont, Yves (Université de Versailles Saint Quentin en Yvelines - CNRS) ;
Jennings, M. R. (Swansea University) ;
Russell, Stephen A. O. (University of Warwick) ;
Vales Castro, Pablo (Institut Català de Nanociència i Nanotecnologia) ;
Catalan, Gustau (Institut Català de Nanociència i Nanotecnologia) ;
Lira-Cantu, Monica (Institut Català de Nanociència i Nanotecnologia) ;
Ton-That, C. (University of Technology Sydney) ;
Teherani, Féréchteh Hosseini (Nanovation) ;
Sandana, Vinod E. (Nanovation) ;
Bove, Philippe (Nanovation) ;
Rogers, David J. (Nanovation)
The use of ultra-wide bandgap transparent conducting beta gallium oxide (β-GaO) thin films as electrodes in ferroelectric solar cells is reported. In a new material structure for energy applications, we report a solar cell structure (a light absorber sandwiched in between two electrodes - one of them - transparent) which is not constrained by the Shockley-Queisser limit for open-circuit voltage (V) under typical indoor light. [...]
2019 - 10.1016/j.mtener.2019.100350
Materials today energy, Vol. 14 (December 2019) , art. 100350
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10.
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9 p, 840.9 KB |
Facile and low cost oxidative conversion of MoS2 in α-MoO3 : Synthesis, characterization and application
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Bortoti, Andressa (Institut Català de Nanociència i Nanotecnologia) ;
Gavanski, Amanda de Freitas (Universidade Estadual do Centro-Oeste - UNICENTRO) ;
Reyna, Yegraf (Institut Català de Nanociència i Nanotecnologia) ;
Galli, Andressa (Universidade Estadual do Centro-Oeste - UNICENTRO) ;
Castro, Eryza (Universidade Estadual do Centro-Oeste - UNICENTRO)
This study describes a facile low cost route to synthesize the α-MoO through a conversion of the precursor MoS in oxidant media. The structure and morphology of the α-MoO were studied by high resolution transmission electron microscopy (HRTEM) and selected area electron diffraction (SAED), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and Raman spectroscopy. [...]
2017 - 10.1016/j.jssc.2017.05.006
Journal of solid state chemistry, Vol. 252 (August 2017) , p. 111-118
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