- document
-
Syifai, Indra (author)Due to the high-efficiency potential over 40%, the two-terminal (2T) perovskite/c-Si tandem solar cell becomes a desirable and promising candidate for solar cells. The photovoltaic materials and devices (PVMD) group in TU Delft has developed the c-Si solar cell using poly-SiOx as carrier-selective passivating contacts. The utilization of poly...master thesis 2020
- document
-
Ackermans, Marnix (author)Since the discovery of the photovoltaic properties of metal halide perovskites in 2009, the material has rapidly gained interest in the scientific community. In less than 10 years, the power conversion efficiency of perovskite solar cells (PSC) has increased from 3.9% to over 25%, reaching levels of conventional silicon cells. PSCs have multiple...master thesis 2020
- document
-
SENTHIL KUMAR, Saravana Kumar (author)Crystalline silicon solar cells based on poly-Si Tunnelling Oxide Passivating Contacts (TOPCon) is becoming one of the most promising solar cell structures that enable both high efficiency and low cost. The record efficiency for the Front-Back contacted (FBC) cell with TOPCon structure is 25.7 %. By moving both the metal contacts to the back...master thesis 2020
- document
-
Kooiman, M.J. (author)In dit project is gewerkt aan een manier om de reflectie van het licht op de textuur van een zonnecel te berekenen. Deze reflectie is berekenend voor de verschillende hoeken van inval en uitval en omgezet in een reflectie matrix. In dit<br/>project is verder gewerkt aan een al bestaand wiskundig model. Dat model was<br/>in staat het door de...bachelor thesis 2020
- document
-
Liu, Hanchen (author)Crystalline silicon (c-Si) solar cells that are well-established technologies have already achieved a power conversion efficiency (PCE) as high as 26.7% by using the interdigitated-back-contacted (IBC) configuration. However, this efficiency is still limited by the spectral mismatch between t¬he absorption characteristics of c-Si and the AM 1.5...master thesis 2020
- document
-
Rajagopal, Devika (author)Thin-film photovoltaic technologies are gaining momentum over the currently dominated crystalline silicon technologies. In addition to the competitive prices, flexible thin-film technology especially has the added advantage such as in building integrated photovoltaics (BIPV) due to its flexibility and light weight. HyET Solar B.V. is a company...master thesis 2020
- document
-
van der Sande, Robin (author), Hubers, Martijn (author)Many countries in the world face the problem of fruit frost during spring, which results in the loss of harvested crops. Solutions exist to prevent the fruit to freeze, however this requires that the temperature is known. Therefore, a smart autonomous temperature sensor network is designed that is capable of acquiring a 3D temperature profile of...bachelor thesis 2020
- document
-
Spaans, E.M. (author)The future of our energy supply cannot continue to depend on the use of exhaustible fossil fuels. The successful transition to a society powered by renewable energy sources is one of the major challenges our current generation faces. Renewable systems will only fully establish themselves if high conversion efficiencies can be obtained at a...master thesis 2020
- document
-
Alcañiz Moya, Alba (author)Silicon heterojunction solar cells employing transition metal oxides as carrier selective contact are of particular interest due to the potential of reducing parasitic absorption while featuring optimal electrical properties. Recently, a record efficiency of 23.5% was achieved by employing molybdenum oxide (MoOx) as carrier selective contact....master thesis 2020
- document
-
Ravichandran, Ashwath (author)Single junction solar cells have a theoretical efficiency limit of 33.1% due to spectral mismatch. To overcome this, multi-junction devices are generally fabricated with two or more junctions, so as to achieve better energy conversion efficiency by optimum spectral utilization. The c-Si bottom cell of a thin-film Si triple-/quadruple-junction...master thesis 2020
- document
-
Nawaratne, Sajith (author)Thin film solar cell technologies are gaining more favour over first generation PV technologies such as monocrystalline silicon PV modules. This is due to their special characteristics such as lightweight, flexibility and reduced resource consumption. HyET Solar is a Netherlands based company that makes thin film amorphous silicon modules using...master thesis 2020
- document
-
Wiering, Maik (author)In this thesis, two new types of crystalline silicon texturization were developed, eventually aimed to be used in a triple junction solar cell from monocrystalline silicon and two thin film silicon alloy layers. The bottom of the two thin film silicon layers is made of hydrogenated nanocrystalline silicon (nc-Si:H). The current problem with this...master thesis 2020
- document
-
van Heerden, Rik (author)Solar cells can play a key role in the transition towards a sustainable future. This transition is one of the major challenges our society faces during the coming decades. Development of high-efficiency photovoltaic solutions at reasonable costs will help accelerating the transformation of our energy system. In this respect, perovskite solar...master thesis 2020
- document
-
Limodio, G. (author), Bartesaghi, Davide (author), Hietkamp, Maurice (author), Rajagopal, D. (author), Nawaratne, Sajith (author), Hamers, Edward (author), Smets, A.H.M. (author)In this work we focus on texturing Al substrate in order to employ the modulated surface texturing approach for thin-film, flexible, micromorph solar cells. We deployed two different methods to induce micro-craters in Al foil, i) bare Al etching by KOH and ii) AZO sacrificial layer etched in KOH. After modelling the etching kinetics of KOH on...conference paper 2020
- document
-
Strategy to mitigate the dipole interfacial states in (i)a-Si:H/MoOxpassivating contacts solar cellsMazzarella, L. (author), Alcañiz Moya, A. (author), Kawa, Eliora (author), Procel Moya, P.A. (author), Zhao, Y. (author), Han, C. (author), Yang, G. (author), Zeman, M. (author), Isabella, O. (author)Electrical simulations show that the dipole formed at (i)a-Si:H/MoOx interface can explain electrical performance degradation. We experimentally manipulate this interface by a plasma treatment (PT) to mitigate the dipole strength without harming the optical response. The optimal PT + MoOx stack results in strongly improved electrical...conference paper 2020
- document
-
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
- document
-
Bae, D. (author)Scale-up to large-area Cu(In, Ga)Se <sub>2</sub> (CIGS) solar panels is proving to be much more complicated than expected. Particularly, the non-vacuum wet-chemical buffer layer formation step has remained a challenge and has acted as a bottleneck in industrial implementations for mass-production. This technical note deals with the...journal article 2020
- document
-
Gelvez Rueda, M.C. (author), Ahlawat, Paramvir (author), Merten, Lena (author), Jahanbakhshi, Farzaneh (author), Mladenović, Marko (author), Hinderhofer, Alexander (author), Dar, M. Ibrahim (author), Li, Yang (author), Grozema, F.C. (author)Layered hybrid perovskites have emerged as a promising alternative to stabilizing hybrid organic–inorganic perovskite materials, which are predominantly based on Ruddlesden-Popper structures. Formamidinium (FA)-based Dion-Jacobson perovskite analogs are developed that feature bifunctional organic spacers separating the hybrid perovskite slabs...journal article 2020
- document
-
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
- document
-
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