A5091030950- Silicon and Solar Cell Technologies
- Photovoltaic System Optimization Techniques
- solar cell performance optimization
- Thin-Film Transistor Technologies
- Solar Thermal and Photovoltaic Systems
- Photovoltaic Systems and Sustainability
- Silicon Nanostructures and Photoluminescence
- Solar Radiation and Photovoltaics
- Semiconductor materials and interfaces
- Radiative Heat Transfer Studies
- Integrated Circuits and Semiconductor Failure Analysis
- 3D IC and TSV technologies
- Integrated Energy Systems Optimization
Fraunhofer Institute for Solar Energy Systems
2013-2024
Australian National University
2012-2021
Solar cells made from multicrystalline silicon (mc-Si) wafers play an important role in photovoltaics. Nevertheless, tools for the optical simulation of these devices are scarce. In present work, reflectance and charge carrier generation mc-Si modules first time simulated successfully complete spectral range including light trapping escape light, as comparison with measured finished mini-modules shows. The "spherical caps" geometry is used to model front surface reflection iso-textured solar...
High accuracy of yield prediction is utmost importance for commercial scale photovoltaic systems. One key parameter crucial to the choice and availability reliable solar radiation data. In this work we investigate impact two fundamentally different irradiance data sources on calculation yearly performance ratio five locations in climatic regions Australia. We find an overestimation up 9.3% satellite-based climate compared against one-minute ground-based The shows a general correlation with...
The introduction of new solar cell structures as e.g. PERC or HIP-MWT into industrial fabrication increases the production complexity considerably to still widely produced H-pattern Al-BSF cell. But due higher efficiency structures, their increased costs can pay off within following module on system level, area-proportional are used more efficiently. We present a cost calculation model for economic comparison different silicon technologies with respect impact improvement ownership each...
Minimizing the optical and electrical losses from cell to module is essential for highly efficient PV modules. We use metal wrap through (MWT) solar cells with passivated rear surface integrate them into a PV-module minimize losses. For this purpose, we analyze properties of different encapsulation materials respect specific type, i.e. absorption in encapsulants coupling gains refractive index. The best performing encapsulant shows cell-to-module power loss 0% 16-cell MWT module. fill factor...
Different methods to characterize the Incidence Angle Modifier (IAM) of PV modules have been presented in past [1-4]. From authors perspective it is questionable if detailed characterisation angular behaviour has any significant benefits yield modelling activities undertaken forecast power energy a system. The purpose this work evaluate influence IAM data from different measurement techniques as input on yearly model. Several sample with top cover such standard Low iron glass,...
The HIP-MWT (High Performance Metal Wrap Through) cell is a simplified variant of the metal wrap through passivated emitter and rear (MWT-PERC). In this paper, transferability concept from lab scale to pilot line processing presented. suitability for integration in newly developed back contact modules tested demonstrated. Based on results lab-scale production, fabrication process improved. Moreover, options further accelerations cost reduction are identified. Finally solar module...
New ribbon designs to minimize shading losses are evaluated and compared. With a simulation methodology considering interaction of optics from cells, modules systems in realistic conditions, the angular responses annual yield enhancements with these estimated. It is shown that cannot be easily estimated STC measurements an incident angle multiplier coefficient proposed for correction.
Abstract Cell interconnector designs such as light redirecting films (LRFs) and various geometric ribbon layouts are all aimed at improving the performance of crystalline silicon solar modules. However, due to usually specular reflecting surface, angular-dependent module performance, which is typically quantified with an incidence angle modifier, depends on rotation module. We find that typical power measurements under standard test conditions 1000 W m −2 25 °C cell temperature not suited...
The cost-effective production of highly efficient solar cells and modules is one the major goals current research activities. Especially ongoing crisis that affecting a part industry makes new methods instruments for further reductions in cost ownership (€/Wp) essential. Our approach optimization metallization layout passivated Czochralski-Si metal wrap through (MWT) aiming at minimum module ownership. front finger width, number contact rows solder pads per row are varied methodically using...
The metallization of silicon solar cells is often optimized for their performance under standard test conditions (STC) at 1000 W/m <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> AM1.5G illumination and 25 °C cell temperature. However, modules in field installations, experience a range intensities distributions, spectral operating temperatures, depending on location type installation. In this work, we aim to answer the question whether...
PV cell and module manufactures optimise their products according to standard test conditions. The key parameter for financing of a solar farm is yield under field or realistic Field testing modules expensive time consuming. Hence we develop methodology simulating based on the optical, thermal electrical properties components stack ands layout. With our procedure will model losses conditions standard, half encapsulant free in different locations. For now quantify installed Melbourne cloudy...