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Tandem solar cells are more efficient

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  Tandem solar cells are more efficient Sam Wormley <swormley1@gmail.com> - 2015-11-23 07:49 -0600
    Re: Tandem solar cells are more efficient jimp@specsol.spam.sux.com - 2015-11-23 18:58 +0000

#534770 — Tandem solar cells are more efficient

Tandem solar cells are more efficient
> http://phys.org/news/2015-11-tandem-solar-cells-efficient.html


> Stacking two solar cells one over the other has advantages: Because
> the energy is "harvested" in two stages, and overall the sunlight can
> be converted to electricity more efficiently. Empa researchers have
> come up with a procedure that makes it possible to produce thin film
> tandem solar cells in which a thin perovskite layer is used. The
> processing of peroveskite takes place at just 50 degrees Celsius and
> such a process is potentially applicable for low cost roll-to-roll
> production in future.
>

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#534862

Sam Wormley <swormley1@gmail.com> wrote:
> Tandem solar cells are more efficient
>> http://phys.org/news/2015-11-tandem-solar-cells-efficient.html
> 
> 
>> Stacking two solar cells one over the other has advantages: Because
>> the energy is "harvested" in two stages, and overall the sunlight can
>> be converted to electricity more efficiently. Empa researchers have
>> come up with a procedure that makes it possible to produce thin film
>> tandem solar cells in which a thin perovskite layer is used. The
>> processing of peroveskite takes place at just 50 degrees Celsius and
>> such a process is potentially applicable for low cost roll-to-roll
>> production in future.

The relevant metric is dollars/watt over the lifetime, not efficiency.


-- 
Jim Pennino

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