{"id":114437,"date":"2026-05-05T09:03:44","date_gmt":"2026-05-05T07:03:44","guid":{"rendered":"https:\/\/www.sonnenseite.com\/?p=114437"},"modified":"2026-05-05T09:03:44","modified_gmt":"2026-05-05T07:03:44","slug":"toxic-solar-panels-cleaned-to-bring-them-indoors","status":"publish","type":"post","link":"https:\/\/www.sonnenseite.com\/en\/science\/toxic-solar-panels-cleaned-to-bring-them-indoors\/","title":{"rendered":"Toxic solar panels cleaned to bring them indoors"},"content":{"rendered":"\n

Safer and more environmentally friendly indoor solar panels could soon help power electronics in homes and offices, thanks to University of Queensland researchers. <\/p>\n\n\n\n

A team of chemical engineers\u202fled by UQ\u2019s Dr Miaoqiang Lyu<\/a> and Professor Lianzhou Wang<\/a> have developed a new fabrication method that eliminates the need for toxic lead and other hazardous solvents in perovskite indoor solar panels. <\/p>\n\n\n\n

\u201cIndoor solar cells themselves are not new, but the power conversion efficiency of the commercial silicon-based technology is only around 10 per cent,\u201d Dr Lyu said. <\/p>\n\n\n\n

\u201cHalide perovskites are an emerging technology that could replace silicon, offering much higher efficiencies and commercial potential. <\/p>\n\n\n\n

\u201cHowever, most still rely on lead-based hazardous materials. <\/p>\n\n\n\n

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\u201cThe technology we developed eliminates those materials while still delivering high efficiency.\u201d <\/p>\n<\/blockquote>\n\n\n\n

UQ PhD student Zitong Wang<\/a>, who is under the supervision of Dr Lyu and Professor Wang, developed a safe and scalable vapour-based manufacturing process for fabricating high-quality lead-free perovskite material with fewer performance-limiting defects. <\/p>\n\n\n\n

Indoor perovskite solar cells operate under low-intensity artificial light, such as light-emitting diodes (LEDs) and fluorescent lamps. <\/p>\n\n\n\n

Using the new method, the panels achieved an efficiency of 16.36 per\u202fcent \u2014 the highest reported for this type of lead-free perovskite indoor solar cell made using an industry-compatible evaporation method. <\/p>\n\n\n\n

\u201cThis material has very attractive properties that can absorb indoor light and convert very weak indoor light efficiently into electricity,\u201d Dr Lyu said. <\/p>\n\n\n\n

\u201cBy removing those solvents entirely, the process is much better suited to scalable manufacturing.\u201d<\/p>\n\n\n\n

Lead-free perovskite indoor solar cells are also increasingly viewed as an alternative to coin-cell and button batteries for low-power electronics like environmental sensors, wearables, medical and health monitoring devices, and small consumer electronics. <\/p>\n\n\n\n

Supermarkets trialling battery-powered electronic shelf labels, which replace thousands of paper price tickets and reduce manual labour, are among the potential early applications of the technology. <\/p>\n\n\n\n

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\u201cWith suitable voltage management, these devices can replace coin\u2011cell batteries, reducing the number of small batteries that end up as waste\u202for in children\u2019s toys,\u201d Dr Lyu said. <\/p>\n<\/blockquote>\n\n\n\n

Panels fabricated using the UQ process are thin, scalable and can be made on flexible plastic and in different shapes, making them easy to integrate into a wide range of products.  <\/p>\n\n\n\n

The next step is sealing the panels before further testing.\u202f <\/p>\n\n\n\n

\u201cI think the key here is encapsulation, to protect the material from oxygen and moisture,\u201d Dr Lyu said. <\/p>\n\n\n\n

\u201cPeople will probably see perovskite indoor panels and integrated consumer electronics in the market in the next few years.\u201d <\/p>\n\n\n\n

The research paper<\/a> is published in ACS Energy Letters.<\/em> <\/p>\n\n\n\n

Collaboration and acknowledgements<\/h4>\n\n\n\n

Dr Lyu is an ARC Future Fellow at UQ\u2019s School of Chemical Engineering<\/a> whose research group focuses on advanced optoelectronic materials. Zitong Wang is a PhD student based at UQ\u2019s\u202fAustralian Institute of Bioengineering and Nanotechnology<\/a> (AIBN), and Professor\u202fLianzhou\u202fWang is an Honorary Professor\u202fat UQ with a strong research record in functional nanomaterials for clean energy applications. Dr\u202fDongxu He<\/a> is a post-doctoral researcher at School of Chemical Engineering.\u202f<\/p>\n\n\n

Source<\/h5>\r\n\n\n\n

University of Queensland 2026<\/a><\/p>\n

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