Embedded Systems Conference
Breaking News
Comments
Newest First | Oldest First | Threaded View
Winnipegger
User Rank
Author
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
Author
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
Author
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
Author
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
Author
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
Author
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?



Radio
LATEST ARCHIVED BROADCAST
As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
Like Us on Facebook
Special Video Section
The LTC®6363 is a low power, low noise, fully differential ...
Vincent Ching, applications engineer at Avago Technologies, ...
The LT®6375 is a unity-gain difference amplifier which ...
The LTC®4015 is a complete synchronous buck controller/ ...
10:35
The LTC®2983 measures a wide variety of temperature sensors ...
The LTC®3886 is a dual PolyPhase DC/DC synchronous ...
The LTC®2348-18 is an 18-bit, low noise 8-channel ...
The LT®3042 is a high performance low dropout linear ...
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 ...