Professor Xiaojing Hao is at the international forefront of developing cost-effective thin-film semiconductor materials to harvest sunlight for future photovoltaic products and applications. She has made vital contributions to photovoltaic science/engineering by setting and still holding record efficiencies in green kesterite (Cu2ZnSnS4) solar cells, developing unique solutions for improving various emerging thin film photovoltaic devices, and pursuing efficient, cheap and environmentally friendly thin-film materials for building-integrated and product-integrated photovoltaics. Professor Hao is an ARC Future Fellow and recipient of both the Malcolm McIntosh Prize for Physical Scientist of the Year and the Pawsey Medal.