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			<title>Green Building Forum - improved solar material?</title>
			<lastBuildDate>Mon, 25 May 2026 03:05:51 +0100</lastBuildDate>
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		<title>improved solar material?</title>
		<link>https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18178&amp;Focus=306537#Comment_306537</link>
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		<pubDate>Thu, 22 Aug 2024 13:19:53 +0100</pubDate>
		<author>djh</author>
		<description>
			<![CDATA[I just saw an article about a new thin-film perovskite material:<br /><br /><a href="https://www.coatingsworld.com/contents/view_breaking-news/2024-08-19/solar-energy-breakthrough-could-reduce-need-for-solar-farms/" target="_self" rel="nofollow">https://www.coatingsworld.com/contents/view_breaking-news/2024-08-19/solar-energy-breakthrough-could-reduce-need-for-solar-farms/</a><br /><br />e.g.<br /><br />"This ultra-thin material, using this so-called multi-junction approach, has now been independently certified to deliver over 27% energy efficiency"<br /><br />"At just over one micron thick, it is almost 150 times thinner than a silicon wafer. Unlike existing photovoltaics, generally applied to silicon panels, this can be applied to almost any surface."<br /><br />I've no idea what the implications are.]]>
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		<title>improved solar material?</title>
		<link>https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18178&amp;Focus=306538#Comment_306538</link>
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		<pubDate>Thu, 22 Aug 2024 14:47:02 +0100</pubDate>
		<author>fostertom</author>
		<description>
			<![CDATA[Haven't non-silicon (incl 'organic') PV materials been 'nearly there' for almost as long as fusion? So it's the thin-filmness that's new? and/or the 27% efficiency? Is this really it, at last? I wonder what rare materials constitute the Catch?]]>
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		<title>improved solar material?</title>
		<link>https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18178&amp;Focus=306540#Comment_306540</link>
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		<pubDate>Thu, 22 Aug 2024 18:03:18 +0100</pubDate>
		<author>bhommels</author>
		<description>
			<![CDATA[The usual problem with Perovskite based solar cells is that they degrade too rapidly in real world conditions. Not taking anything away from the achieved efficiencies BTW!]]>
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