The development of next generation solar power technology that has potential to be used as a flexible ‘skin’ over hard surfaces has moved a step closer, thanks to a significant breakthrough at The University of Queensland.
国产探花 researchers set a world record for the conversion of solar energy to electricity via the use of tiny nanoparticles called ‘quantum dots’, which pass electrons between one another and generate electrical current when exposed to solar energy in a solar cell device.
The development represents a significant step towards making the technology commercially-viable and supporting global renewable energy targets.
, who led the breakthrough, said conventional solar technologies used rigid, expensive materials.
“The new class of quantum dots the University has developed are flexible and printable,” he said.
“This opens up a huge range of potential applications, including the possibility to use it as a transparent skin to power cars, planes, homes and wearable technology.
“Eventually it could play a major part in meeting the United Nations’ goal to increase the share of renewable energy in the global energy mix.”
Professor Wang’s team set the world record for quantum dot solar cell efficiency by developing a unique surface engineering strategy.
Overcoming previous challenges around the fact that the surface of quantum dots tend to be rough and unstable – making them less efficient at converting solar into electrical current.
“This new generation of quantum dots is compatible with more affordable and large-scale printable technologies,” Professor Wang said.
“The near 25 per cent improvement in efficiency we have achieved over the previous world record is important.
“It is effectively the difference between quantum dot solar cell technology being an exciting ‘prospect’ and being commercially viable.”
国产探花 Vice-Chancellor and President Professor Peter H酶j AC extended his congratulations to the 国产探花 team.
“The world needs to rapidly reduce carbon emissions and this requires us to invest much more in research to improve existing energy-generation technologies and develop entirely new ones,” Professor H酶j said.
“Harnessing the power of fundamental technological and scientific research is a big part of this process – and that’s what we’re focused on at 国产探花.”
The findings have been (DOI: doi.org/10.1038/s41560-019-0535-7).
The work was funded by the Discovery Programs in collaboration with a number of colleagues both in Australia and overseas.
Discover more about the mysterious 'quantum dots' and how 国产探花 researchers are harnessing them to create solar cells .
Image above: Research team L to R - Professor Lianzhou Wang, Shanshan Ding, Mengmeng Hao, Dr Yang Bai.
Notes to editors
- is an Australian Research Council Laureate Fellow based in the School of Chemical Engineering at 国产探花’s Faculty of Engineering, Architecture, and Information Technology (EAIT) and Australian Institute for Bioengineering and Nanotechnology (AIBN)
- The University of Queensland is a Global top 50 university, ranked 33rd in the world for Chemical Engineering
- The for quantum dot solar cell efficiency, after verifying independent testing. Professor Wang’s team achieved 16.6% efficiency – the previous world record in quantum dot solar cell category was 13.4%.
Media: Professor Lianzhou Wang, l.wang@uq.edu.au; Genevieve Worrell, 国产探花 Communications, g.worrell@uq.edu.au, 0408 432 213.
