Searched for: author:"Zeman, M."
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Narayan, N.S. (author), Vega Garita, V.E. (author), Qin, Z. (author), Popovic-Gerber, Jelena (author), Bauer, P. (author), Zeman, M. (author)
Nearly 840 million people still lack access to electricity, while over a billion more have an unreliable electricity connection. In this article, the three different electrification pathways-grid extension, centralized microgrids, and standalone solar-based solutions, such as pico-solar and solar home systems (SHS)-are critically examined...
journal article 2020
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Pomaska, Manuel (author), Köhler, Malte (author), Procel Moya, P.A. (author), Zamchiy, Alexandr (author), Singh, Aryak (author), Kim, Do Yun (author), Isabella, O. (author), Zeman, M. (author), Li, Shenghao (author)
N-type microcrystalline silicon carbide (μc-SiC:H(n)) is a wide bandgap material that is very promising for the use on the front side of crystalline silicon (c-Si) solar cells. It offers a high optical transparency and a suitable refractive index that reduces parasitic absorption and reflection losses, respectively. In this work, we...
journal article 2020
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Zhao, Y. (author), Mazzarella, L. (author), Procel Moya, P.A. (author), Han, C. (author), Yang, G. (author), Weeber, A.W. (author), Zeman, M. (author), Isabella, O. (author)
Hydrogenated nanocrystalline silicon oxide (nc-SiO<sub>x</sub>:H) layers exhibit promising optoelectrical properties for carrier-selective-contacts in silicon heterojunction (SHJ) solar cells. However, achieving high conductivity while preserving crystalline silicon (c-Si) passivation quality is technologically challenging for growing thin...
journal article 2020
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Limodio, G. (author), Yang, G. (author), De Groot, Yvar (author), Procel, Paul (author), Mazzarella, L. (author), Weber, Arthur W. (author), Isabella, O. (author), Zeman, M. (author)
In this work, we develop SiO<sub>x</sub>/poly-Si carrier-selective contacts grown by low-pressure chemical vapor deposition and boron or phosphorus doped by ion implantation. We investigate their passivation properties on symmetric structures while varying the thickness of poly-Si in a wide range (20-250 nm). Dose and energy of implantation...
journal article 2020
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Singh, M. (author), Santbergen, R. (author), Mazzarella, L. (author), Madrampazakis, A. (author), Yang, G. (author), Vismara, R. (author), Remes, Z. (author), Weeber, A.W. (author), Zeman, M. (author), Isabella, O. (author)
The optical modelling for optimizing high-efficiency c-Si solar cells endowed with poly-SiO<sub>x</sub> or poly-SiC<sub>x</sub> carrier-selective passivating contacts (CSPCs) demands a thorough understanding of their optical properties, especially their absorption coefficient. Due to the mixed phase nature of these CSPCs, spectroscopic...
journal article 2020
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Procel Moya, P.A. (author), Xu, Haiyuan (author), Saez, Aurora (author), Ruiz Tobon, C.M. (author), Mazzarella, L. (author), Zhao, Y. (author), Han, C. (author), Yang, G. (author), Zeman, M. (author), Isabella, O. (author)
The contact resistivity is a key parameter to reach high conversion efficiency in solar cells, especially in architectures based on the so-called carrier-selective contacts. The importance of contact resistivity relies on the evaluation of the quality of charge collection from the absorber bulk through adjacent electrodes. The electrode...
journal article 2020
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Rezaei, N. (author), Procel Moya, P.A. (author), Simor, Marcel (author), Vroon, Zeger (author), Zeman, M. (author), Isabella, O. (author)
An interdigitated back-contacted (IBC) configuration is proposed for submicron copper indium gallium (di)selenide (CIGS). In a modelling platform, the structure was opto-electrically optimized for maximum efficiency. The results are compared with a reference front/back-contacted (FBC) solar cell with similar absorber thickness and exhibiting...
journal article 2020
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Tian, Y. (author), Bento Montes, A.R. (author), Vančo, Ľubomír (author), Čaplovičová, Mária (author), Vogrinčič, Peter (author), Šutta, Pavol (author), Satrapinskyy, Leonid (author), Zeman, M. (author), Isabella, O. (author)
The knowledge of the structural and compositional details of Si/BaSi<sub>2</sub>/Si heterostructure annealed at high temperature is a prerequisite for BaSi<sub>2</sub> application in heterojunction thin-film solar cells. For this purpose, Si/BaSi<sub>2</sub>/Si heterostructures deposited by magnetron sputtering with different Si layer...
journal article 2020
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Scire, D. (author), Procel Moya, P.A. (author), Gulino, Antonino (author), Isabella, O. (author), Zeman, M. (author), Crupi, Isodiana (author)
The application of molybdenum oxide in the photovoltaic field is gaining traction as this material can be deployed in doping-free heterojunction solar cells in the role of hole selective contact. For modeling-based optimization of such contact, knowledge of the molybdenum oxide defect density of states (DOS) is crucial. In this paper, we...
journal article 2020
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Vismara, R. (author), Länk, Nils Odebo (author), Verre, Ruggero (author), Käll, Mikael (author), Isabella, O. (author), Zeman, M. (author)
The high-index all-dielectric nanoantenna system is a platform recently used for multiple applications, from metalenses to light management. These systems usually exhibit low absorption/scattering ratios and are not efficient photon harvesters. Nevertheless, by exploiting far-field interference, all-dielectric nanostructures can be engineered...
journal article 2019
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Sönmez, Furkan Fatih (author), Ziar, H. (author), Isabella, O. (author), Zeman, M. (author)
The concept of view factor has various applications in engineering problems, ranging from heat management to bifacial photovoltaics. Analytical solutions for view factor calculations are difficult to obtain and normally numerical methods are used. For complex geometries, when several surfaces are arbitrarily arranged in a threedimensional...
journal article 2019
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Hou, Fuhua (author), Han, C. (author), Isabella, O. (author), Yan, Lingling (author), Shi, Biao (author), Chen, Junfan (author), An, Sichong (author), Zeman, M. (author)
Perovskite/silicon tandem solar cells (TSCs) have the potential to achieve power conversion efficiency exceeding 30%. To be compatible with high-efficiency solution-deposited perovskite top cell, a planar front surface for silicon bottom cell is generally required. However, flat front surfaces result in large light reflection losses and thus...
journal article 2019
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Limodio, G. (author), Yang, G. (author), Ge, H. (author), Procel Moya, P.A. (author), de Groot, Y. (author), Mazzarella, L. (author), Isabella, O. (author), Zeman, M. (author)
In this work we develop a rear emitter silicon solar cell integrating carrier-selective passivating contacts (CSPCs) with different thermal budget in the same device. The solar cell consists of a B-doped poly-Si/SiO<sub>x</sub> hole collector and an i/n hydrogenated amorphous silicon (a-Si:H) stack acting as electron collector placed on the...
journal article 2019
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Özkol, E. (author), Procel Moya, P.A. (author), Zhao, Y. (author), Mazzarella, L. (author), Medlin, Rostislav (author), Šutta, Pavol (author), Isabella, O. (author), Zeman, M. (author)
Solar cells based on black silicon (b-Si) are proven to be promising in photovoltaics (PVs) by exceeding 22% efficiency. To reach high efficiencies with b-Si surfaces, the most crucial step is the effective surface passivation. Up to now, the highest effective minority carrier lifetimes are achieved with atomic layer-deposited Al<sub>2</sub>O...
journal article 2019
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Ahmadpanahi, S.H. (author), Vismara, R. (author), Isabella, O. (author), Zeman, M. (author)
Surface texturing is one of the main techniques to enhance light absorption in solar cells. In thin film devices, periodic texturing can be used to excite the guided resonances supported by the structure. Therefore, total absorption is enhanced largely due to the excitation of these resonances. Although the maximum absorption enhancement...
journal article 2019
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Vismara, R. (author), Isabella, O. (author), Ingenito, A. (author), Si, F.T. (author), Zeman, M. (author)
Background: Elongated nanostructures, such as nanowires, have attracted significant attention for application in silicon-based solar cells. The high aspect ratio and characteristic radial junction configuration can lead to higher device performance, by increasing light absorption and, at the same time, improving the collection efficiency of...
journal article 2019
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Calcabrini, A. (author), Ziar, H. (author), Isabella, O. (author), Zeman, M. (author)
Architects, engineers and urban planners have today at their disposal several tools for simulating the energy yield of photovoltaic systems. These tools are based on mathematical models that perform repetitive calculations to determine the annual irradiation received by solar panels; hence when photovoltaic systems are installed in complex...
journal article 2019
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Perez-Rodriguez, Paula (author), Vijselaar, Wouter (author), Huskens, Jurriaan (author), Stam, Machiel (author), Falkenberg, Michael (author), Zeman, M. (author), Smith, W.A. (author), Smets, A.H.M. (author)
Solar fuels are a promising way to store solar energy seasonally. This paper proposes an earth-abundant heterostructure to split water using a photovoltaic-electrochemical device (PV-EC). The heterostructure is based on a hybrid architecture of a thin-film (TF) silicon tandem on top of a c-Si wafer (W) heterojunction solar cell (a-Si:H (TF)...
journal article 2019
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Narayan, N.S. (author), Chamseddine, Ali (author), Vega-Garita, Victor (author), Qin, Z. (author), Popovic-Gerber, Jelena (author), Bauer, P. (author), Zeman, M. (author)
With almost 1.1 billion people lacking access to electricity, solar-based off-grid products like Solar Home Systems (SHS) have become a promising solution to provide basic electricity needs in un(der)-electrified regions. Therefore, optimal system sizing is a vital task as both oversizing and undersizing a system can be detrimental to system...
journal article 2019
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Han, C. (author), Mazzarella, L. (author), Zhao, Y. (author), Yang, G. (author), Procel Moya, P.A. (author), Tijssen, M. (author), Bento Montes, A.R. (author), Isabella, O. (author), Zeman, M. (author)
Broadband transparent conductive oxide layers with high electron mobility (μ<sub>e</sub>) are essential to further enhance crystalline silicon (c-Si) solar cell performances. Although metallic cation-doped In<sub>2</sub>O<sub>3</sub> thin films with high μ<sub>e</sub> (&gt;60 cm<sup>2</sup> V<sup>-1</sup> s<sup>-1</sup>) have been extensively...
journal article 2019
Searched for: author:"Zeman, M."
(1 - 20 of 122)

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