Ann: Quarterly Activities/Appendix 4C Cash Flow Report, page-7

Commentary from Warwick Grigor 2nd July (bolding mine)

Perovskite solar farm with graphene

We have recently stated that Greatcell Energy’s perovskite solar cells have been significantly enhanced with the introduction of graphene. Last week we saw news of another perovskite product using graphene.

Prof. Aldo Di Carlo and a researchers from CHOSE Centre for Hybrid and Organic Solar Energy supported by Graphene Flagship have created the world's first large area (0.5 m2) graphene-enabled perovskite solar panels each containing 40 modules.

The researcher designed solar panels with graphene doped electron transporting layers and functionalised MoS2 buffer layers sandwiched between the perovskite and hole transporting layers. The trial solar farm has been commissioned on the Greek island of Crete, consisting of nine graphene–perovskite panels with a total panel area of 4.5m2 and a total peak power output exceeding 250 Watt. For comparison, the commercial silicon solar panels in the market can produce approx. 250-300 Watt of peak power. Furthermore, the team has achieved an excellent power conversion efficiency of 12.5% on an active area of 81.9 cm².

Greatcell has been working on ultra-low light perovskite solar cells that effectively “recycle” electricity used for indoor lighting as opposed to primary collection of solar energy from outdoor facilitates. The common link between the two types, that interests us, is the use of graphene. We will follow these developments with interest.