Breaking News
News & Analysis

Low-cost, more efficient solar cells mostly plastic

2/18/2010 06:00 PM EST
6 comments
NO RATINGS
More Related Links
View Comments: Newest First | Oldest First | Threaded View
Winnipegger
User Rank
Rookie
re: Low-cost, more efficient solar cells mostly plastic
Winnipegger   4/12/2011 6:57:07 PM
NO RATINGS
What does "quantum efficiency" mean? A paper published in year 2000 stated Gallium-Indium-Nitride semiconductor photovoltaic cells were able to convert 56% with 2 junctions, 64% with 3 junctions, or 72% with 36 junctions. A later paper optimized this, the researcher calculated 70.2% conversion with 8 junctions. But that is a percentage of all sunlight that strikes the cell. That chemistry has the advantage that every junction uses the same chemicals, each junction is transparent to colours that it doesn't convert to electricity. Each junction has a different concentration of nitrogen to absorb different colours. Initially they had difficulty getting nitrogen to permeate the cell, but later research solved that problem. Unfortunately no one has commerciallized this technology. Now this article claims 90%, but what exactly is "quantum" efficiency?

prabhakar_deosthali
User Rank
CEO
re: Low-cost, more efficient solar cells mostly plastic
prabhakar_deosthali   12/30/2010 5:08:10 AM
NO RATINGS
Apart from the cost, it is the flexibility of the plastic material that will make the solar panel being used in many more places- like car bodies could be layered with such material to produce electricity to charge the car batteries. You could just hang such solar panels on a rope in your backyard when there is sunshine and get electricity.

blue7053
User Rank
Rookie
re: Low-cost, more efficient solar cells mostly plastic
blue7053   3/23/2010 8:38:50 PM
NO RATINGS
Solar cells are currently selling for $.98 (98 cents/watt) by the pallet (~20/pallet). The great majority are selling for ~$2/watt as sgl panels. Available as from 12 volt to 600v systems. http://www.ecobusinesslinks.com/solar_panels.htm

CSR88
User Rank
Rookie
re: Low-cost, more efficient solar cells mostly plastic
CSR88   2/27/2010 10:22:40 AM
NO RATINGS
This is very interesting indeed. We understand that this is early stages, but still I would love to see some numbers to compare to the traditinal cells. Also when do you anticipate to get this into manufacturing, assuming this is possible? Thanks

asdasdsa45646456
User Rank
Rookie
re: Low-cost, more efficient solar cells mostly plastic
asdasdsa45646456   2/22/2010 8:27:37 PM
NO RATINGS
Plastic is a petroleum byproduct. So how much oil will be used to make these?

Cablemen
User Rank
Rookie
re: Low-cost, more efficient solar cells mostly plastic
Cablemen   2/20/2010 8:05:16 AM
NO RATINGS
What is the estimated cost per watt that someone may hazard a guess on for say some 200 watt panels when they are developed for industry to install?

August Cartoon Caption Winner!
August Cartoon Caption Winner!
"All the King's horses and all the KIng's men gave up on Humpty, so they handed the problem off to Engineering."
5 comments
Top Comments of the Week
Like Us on Facebook

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
EE Times on Twitter
EE Times Twitter Feed
Flash Poll
Radio
NEXT UPCOMING BROADCAST
How to Cope with a Burpy Comet
October 17, 2pm EDT Friday
EE Times Editorial Director Karen Field interviews Andrea Accomazzo, Flight Director for the Rosetta Spacecraft.