The researchers say that one of their next steps will be to look for ways to economically mass produce its thin solar cells, but first they have to settle on a formulation. The good news is that thinner solar cells use inherently less material, so should be economical of materials, but we don't know yet the manufacturing costs until they choose a material and characterize it. They plan to experiment with different formulations, hoping to find one that is both efficient and economical to mass produce.
With the advent of cheaper solar cells, I don't expect the price to be sigficantly lower, you still have the guys crawling all over the roof installing the things, hooking up to an inverter, all the wiring etc.....
You are right. The researhers also point out that because their material does not need to be protected from UV, moisture and oxygen that the installations will also use less material for off-sets, covering and such.
Which would do more for society, an expensive thin solar cell or a fat cheap one? I understand that one drives the other, but right now I'd rather seem the emphasis on driving high-volume use of solar everywhere as very, very low prices.
There are other ways to get thin without lower efficiency eg using proton implant shearing techniques rather than diamond saws. If the efficiency is much lower than 20% then the market won't be there in many cases - the limiting factor is how much area you have for deployment (eg you roof at home). In addition other elements of the system scale with area and hence the cost goes up - if this is only a few atoms thick it will need to be bonded to some thicker substrate to give it strength so that it can last through installation and long term use in the elements!
Looks different, but I was thinking that the idea of printing solar cell on paper as it is mentioned in the link above was good except the low efficiency number of 1%. In this case also, the efficiency number 1-2% is not very encouraging...isn't it?
Yes, the whole world is on the side of "cheaper is better than thinner," but there are applications--like spacecraft--where thinner/lighter is worth the extra money. And as is often the case, aerospace technologies get cheaper as they become more popular, so thinner might just meet cheaper down the road :)
Yes you are right that organic solar cells are already being developed for deposition on thin, ultra-cheap substrates like paper. These researchers claim that their materials are better than organic in terms of longevity, since they do not deteriorate in the presense of UV, moisture and oxygen. Also this work is aimed at testing the limits of "limbo" science--how low (thin) can you go!
January 2016 Cartoon Caption ContestBob's punishment for missing his deadline was to be tied to his chair tantalizingly close to a disconnected cable, with one hand superglued to his desk and another to his chin, while the pages from his wall calendar were slowly torn away.122 comments