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Project overview
  • Lead Organisation

    Lastek Pty Ltd


    New South Wales
    South Australia

    ARENA Program

    Advancing Renewables Program

  • Start date

    26 February 2019

    End date

    12 December 2021

  • Project Partners
    This solar project was completed on 12 December 2021.


The Lastek Measurement Guidelines for Tandem Solar Cells Project develops equipment and procedures to accurately measure the performance of multi-junction (tandem) solar cells. It creates new Australian capability to support growth in tandem solar cell research, which is expected to underpin the next wave of performance improvements for solar PV.

How the project works

Lastek will work with the CSIRO PV Performance Laboratory to develop a new, high-performance, LED-based solar simulator. The simulator will be used to create procedures aligned with the new international standards for tandem cell measurement, and may then be commercialised. CSIRO will implement the new procedures in its commercial and research services. The work will also include a study of the measurement behaviour of tandem solar cells based on perovskite materials.


As tandem solar cells become a significant part of the worldwide effort to bring down the cost of renewable energy, the new capability developed in the Lastek Measurement Guidelines for Tandem Solar Cells Project will help keep Australian PV research competitive with overseas efforts. Looking forward, it will help ensure the quality of imported tandem PV products. If successfully commercialised, the new solar simulator will be an Australian technology with a worldwide market.

Area of innovation

Multi-junction solar cells use multiple layers of photovoltaic absorbers to capture more of the solar spectrum, thus improving the efficiency of solar energy collection beyond the fundamental limits that apply to single junction cells. Multi-junction cells are particularly challenging to characterise, due to a complex response to changes in the solar spectrum and the angle of incident light. Standardised methods are crucial to understanding improvements in the laboratory, as well as fair reporting of product performance. The successful undertaking of this project will enable Australia to maintain a leading position in this field and provides the opportunity to commercialise a solar simulator well in advance of comparable instruments currently available on the world market.

Last updated
11 November 2022
Last updated 11 November 2022
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