Please see my full list of publications.
Destructive Reverse Bias in Perovskite Tandem Modules
Jun 11, 2020|
We demonstrate how perovskite hysteresis can result in permanent reductions in power output in perovskite/silicon tandem modules—including irreversible hotspot-induced damage—from only brief periods of shading.
Impact of Al Doping on Surface Passivation of TiOx
Apr 13, 2020|
In this work, we find that the crystallization of ALD TiOx is very sensitive to the film’s thickness, where a small increase in TiOx thickness can trigger a phase change from amorphous TiOx into anatase, which causes a significant increase in J0s. More importantly, we demonstrate that the incorporation of Al ions into the TiOx films inhibits crystallization, which in turn retains excellent passivation for thicker TiOx.
Predicting realistic annual yield for solar modules
Sep 12, 2019|
• Optimizing module design for a maximum annual performance. • Detailed gain and loss analysis from cell under STC to module in real environment. • Understanding the impact of module material on the annual module yield. • Impact of angular light, temperatures, lower irradiances on module performance. • Impact of weather condition (ambient temperature, wind speed) on module performance.
Methodology for Generating High Time Resolution Typical Meteorological Year Data for Accurate Photovoltaic Energy Yield Modelling
Jul 30, 2019|
Accurate energy yield prediction is of utmost importance for commercial scale photovoltaic systems. One key parameter crucial to the prediction accuracy is the quality of solar radiation data. Most energy yield prediction models rely on Typical Meteorological Year data with maximum temporal resolution of one hour. In this work we develop a methodology to generate Typical Meteorological Year data with much higher time resolution using gap filling methods that aim to maintain high-quality solar radiation data for photovoltaic yield modelling.
State-of-Energy-Research Conference (SoERC) 2019
Jul 03, 2019|
The SoERC conference is Australia's first research-only conference that highlights the latest advances in energy research. The conference takes place on 3rd and 4th July at the Australian National University, Canberra.
Lifetime energy yield and economic viability of perovskite/silicon tandem modules
Apr 29, 2019|
Impact of perovskite solar cell degradation on the lifetime energy yield and economic viability of perovskite/silicon tandem modules
Analysis of Hotspots in Half Cell Modules Undetected by Current Test Standards
Mar 07, 2019|
Hotspots are a major source of failure for photovoltaic modules in the field. The current standard for module testing IEC 61215-2 can leave critical hotspots undetected in half-cut solar cell modules.
2-D Hot Spot Temperature Simulation for PV Modules
Jul 24, 2018|
A two‐step method to simulate the spatially resolved temperature of a partially shaded cell in a crystalline silicon photovoltaic (PV) module is presented and tested.
Phosphorus diffused LPCVD polysilicon passivated contacts
Jul 06, 2018|
We present a passivated contact technology based on polysilicon deposited using low pressure chemical vapour deposition (LPCVD) over an ultra-thin silicon dioxide layer, which achieves an excellent surface passivation with implied open-circuit voltage of 735 mV, a recombination prefactor below 1 fA cm−2 and contact resistivity below 1 mΩcm2.
7th World Conference on Photovoltaic Energy Conversion
Jun 11, 2018|
Overview of my contributions and access to presentations and papers.
Impact of cell textures on angular cell-to-module ratios
May 02, 2018|
This work investigates the optical properties of textured surfaces from novel methods such as plasma texturing and metal catalyzed chemical etching, as well as other conventionally textured surfaces like isotropic acidic and random pyramid textures.
Hotspot Modelling of Half-Cell and Full-Cell Module
Apr 11, 2018|
The impact of partial shading on cell operating current, voltage, and temperature is simulated, for a half-cell module with series-parallel-series connections and for the conventional full-cell module.