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Re: Thin film allows for scaling up perovskite cells and also raises efficiency

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Sam Wormley <swormley1@gmail.com> wrote:
> Thin film allows for scaling up perovskite cells and also raises efficiency
>> http://techxplore.com/news/2015-10-thin-scaling-perovskite-cells-efficiency.html
> 
>> A team of Swiss, Chinese and Japanese researchers has found a way to
>> scale up perovskite solar cells without a loss of stability. In their
>> paper published in the journal Science, the team describes their
>> technique and how the results were verified by representatives with
>> the National Institute of Advanced Industrial Science and
>> Technology.
>>
>> The mineral perovskite has been in the news a lot of late as
>> researchers have been studying it to see if it might one day replace
>> silicon in solar cells. Over the past two years, various groups have
>> found ways to make light harvesting devices that rely on the
>> material, more and more efficient. Holding them back, however, has
>> been an inability to scale them up to a size that can be tested for
>> efficiency in the same way traditional cells are tested, i.e. with an
>> aperture greater than 1cm2. Typically, they have been closer to
>> 0.1cm2 which means they cannot be accredited. The problem has been in
>> finding a way to scale up devices that uses the material without them
>> losing their stability?in this new effort, the researchers report
>> finding a way to do just that, by finding a way around the problem,
>> rather than by solving it.
>>
>> Instead of changing the perovskite, the researchers added a new
>> element to a device that uses it, a thin film light collector that is
>> placed over the cells. The film was constructed in two layers, one a
>> positively charged cubic rocksalt semiconductor, the other a sheet of
>> negatively charged titanium oxide. Arriving light causes the
>> perovskite layer to be excited which results in liberated electrons
>> moving through the titanium oxide layer on one side of the film while
>> holes are transported through the other. The result is a protective
>> film covering that actually increases conductivity of the device.
 
Yet another worthless cut and paste from a site with an RSS feed,
spamming shit head.

As for the content, this is yet another pie-in-the-sky solar cell
unlikely to ever grace an assembly line, spamming shit head.

Are you happy with the discussion so far, which is likely the only
discussion you will get, spamming shit head?
 

-- 
Jim Pennino

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Thin film allows for scaling up perovskite cells and also raises efficiency Sam Wormley <swormley1@gmail.com> - 2015-10-30 15:43 -0500
  Re: Thin film allows for scaling up perovskite cells and also raises efficiency jimp@specsol.spam.sux.com - 2015-10-30 21:27 +0000

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