FEC - Low Light Solar cells

The following is from FEC, very interesting use of graphene to replace the use of gold in solar cells.


Greatcell is finding that graphene is significantly
improving perovskite solar cell

Late last year we provided some research on Greatcell
Energy, one of the leading companies pioneering the
development of low light perovskite solar cells. This
research is available on the Far East Capital website if you
want to see it again.

We visited the operations in Wagga Wagga last week and
were delighted to see that the use of First Graphene’s
graphene products were providing a substantial reduction
in the cost of materials used in the manufacturing of
perovskite solar cells, as well as improving the efficiency of
the cells.

Specifically, the graphene can be used to replace a layer of
gold that previously accounted for more than 90% of the
material costs. The conductivity and the flexibility of
graphene has proved itself. Importantly, graphene can be
applied in a large scale roll-to-roll manufacturing technique
once commercial scale operations are commissioned,
probably in 2023.

The efficiency of graphene in this state of the art perovskite
cell is the highlight, though there is a double edged sword
for the graphene supplier. It is so efficient that very little is
needed in each cell. Nevertheless, with the probability that
Greatcell will be called upon to manufacture tens of millions
of cells each year for only the first two potential customers
with which it is dealing, it could provide useful revenue for
First Graphene, perhaps in the tens of tonnes p.a. when
the ball really gets rolling. It would be yet another positive
outcome in the development of new applications for this
wonder material.

http://www.fareastcapital.com.au/imagesDB/newsletter/WeeklyComm28May2022.pdf