Embedded Systems Conference
Breaking News
Newest First | Oldest First | Threaded View
User Rank
re: Low-cost, more efficient solar cells mostly plastic
Winnipegger   4/12/2011 6:57:07 PM
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?

User Rank
re: Low-cost, more efficient solar cells mostly plastic
prabhakar_deosthali   12/30/2010 5:08:10 AM
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.

User Rank
re: Low-cost, more efficient solar cells mostly plastic
blue7053   3/23/2010 8:38:50 PM
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

User Rank
re: Low-cost, more efficient solar cells mostly plastic
CSR88   2/27/2010 10:22:40 AM
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

User Rank
re: Low-cost, more efficient solar cells mostly plastic
asdasdsa45646456   2/22/2010 8:27:37 PM
Plastic is a petroleum byproduct. So how much oil will be used to make these?

User Rank
re: Low-cost, more efficient solar cells mostly plastic
Cablemen   2/20/2010 8:05:16 AM
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?

IoT Network Shoot Out
July 16, 1pm EDT Thursday

Replay available now: A handful of emerging network technologies are competing to be the preferred wide-area connection for the Internet of Things. All claim lower costs and power use than cellular but none have wide deployment yet. Listen in as proponents of leading contenders make their case to be the metro or national IoT network of the future. Rick Merritt, EE Times Silicon Valley Bureau Chief, moderators this discussion. Join in and ask his guests questions.

Brought to you by

Flash Poll
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)
Special Video Section
Chwan-Jye Foo (C.J Foo), product marketing manager for ...
The LT®3752/LT3752-1 are current mode PWM controllers ...
LED lighting is an important feature in today’s and future ...
Active balancing of series connected battery stacks exists ...
After a four-year absence, Infineon returns to Mobile World ...
A laptop’s 65-watt adapter can be made 6 times smaller and ...
An industry network should have device and data security at ...
The LTC2975 is a four-channel PMBus Power System Manager ...
In this video, a new high speed CMOS output comparator ...
The LT8640 is a 42V, 5A synchronous step-down regulator ...
The LTC2000 high-speed DAC has low noise and excellent ...
How do you protect the load and ensure output continues to ...
General-purpose DACs have applications in instrumentation, ...
Linear Technology demonstrates its latest measurement ...
Demos from Maxim Integrated at Electronica 2014 show ...
Bosch CEO Stefan Finkbeiner shows off latest combo and ...
STMicroelectronics demoed this simple gesture control ...
Keysight shows you what signals lurk in real-time at 510MHz ...
TE Connectivity's clear-plastic, full-size model car shows ...
Why culture makes Linear Tech a winner.