Monday, October 27, 2008

Highest Solar Cell Efficiency in UNSW Australia


The UNSW ARC Photovoltaic Centre of Excellence already held the world record of 24.7 per cent for silicon solar cell efficiency. Now a revision of the international standard by which solar cells are measured, has delivered the significant 25 per cent record to the team led by Professors Martin Green and Stuart Wenham and widened their lead on the rest of the world.

Centre Executive Research Director, Scientia Professor Martin Green, said the new world mark in converting incident sunlight into electricity was one of six new world records claimed by UNSW for its silicon solar technologies.

Professor Green said the jump in performance leading to the milestone resulted from new knowledge about the composition of sunlight. Since the weights of the colours in sunlight change during the day, solar cells are measured under a standard colour spectrum defined under typical operational meteorological conditions
.
"Improvements in understanding atmospheric effects upon the colour content of sunlight led to a revision of the standard spectrum in April. The new spectrum has a higher energy content both down the blue end of the spectrum and at the opposite red end with, dare I say it, relatively less green."

The recalibration of the international standard, done by the International Electrochemical Commission in April, gave the biggest boost to UNSW technology while the measured efficiency of others made lesser gains. UNSW's world-leading silicon cell is now six per cent more efficient than the next-best technology, Professor Green said. The new record also inches the UNSW team closer to the 29 per cent theoretical maximum efficiency possible for first-generation silicon photovoltaic cells.

Dr Anita Ho-Baillie, who heads the Centre's high efficiency cell research effort, said the UNSW technology benefited greatly from the new spectrum "because our cells push the boundaries of response into the extremities of the spectrum".

"Blue light is absorbed strongly, very close to the cell surface where we go to great pains to make sure it is not wasted. Just the opposite, the red light is only weakly absorbed and we have to use special design features to trap it into the cell," she said.
Professor Green said: "These light-trapping features make our cells act as if they were much thicker than they are. This already has had an important spin-off in allowing us to work with CSG Solar to develop commercial 'thin-film' silicon-on-glass solar cells that are over 100 times thinner than conventional silicon cells."

ARC Centre Director, Professor Stuart Wenham said the focus of the Centre is now improving mainstream production. "Our main efforts now are focussed on getting these efficiency improvements into commercial production," he said. "Production compatible versions of our high efficiency technology are being introduced into production as we speak."

The world-record holding cell was fabricated by former Centre researchers, Dr Jianhua Zhao and Dr Aihua Wang, who have since left the Centre to establish China Sunergy, one of the world's largest photovoltaic manufacturers. "China was the largest manufacturer of solar cells internationally in 2007 with 70 per cent of the output from companies with our former UNSW students either Chief Executive Officers or Chief Technical Officers", said Professor Green

12 comments:

Anonymous said...

burberry outlet online, ray ban sunglasses, air max, tory burch outlet, true religion, polo ralph lauren outlet, oakley sunglasses, oakley sunglasses, true religion jeans, ray ban, burberry outlet online, coach purses, longchamp outlet, coach factory, michael kors outlet, gucci outlet, louboutin, coach outlet store, coach outlet, tiffany and co, polo ralph lauren, chanel handbags, oakley sunglasses, oakley sunglasses, kate spade outlet, toms shoes, nike free, michael kors outlet, prada handbags, nike shoes, nike air max, louis vuitton outlet online, louis vuitton handbags, jordan shoes, coach factory outlet, ray ban sunglasses, oakley sunglasses, louboutin

Anonymous said...

ray ban, new balance shoes, ugg boots, louis vuitton, ugg boots, bottega, montre homme, lancel, nfl jerseys, nike air max, asics gel, celine handbags, ralph lauren, mulberry, rolex watches, tn pas cher, louboutin, soccer shoes, jimmy choo, nike free, juicy couture outlet, ugg boots, nike air max, air max, gucci, converse shoes, ferragamo shoes, chi flat iron, yoga pants, nike free, hollister, oakley, valentino, ray ban, supra shoes, karen millen, beats by dre, vans, jerseys, longchamp, louis vuitton, insanity, reebok outlet, ralph lauren, ghd, mcm handbags, timberland, birkin bag, abercrombie and fitch, oakley,

Jordans Nike said...

Scott Waring described the stone cheap nike jordan shoes anomaly as a “Face on Mars.” NASA had pointed Cheap Nike jordan shoes out the apparent head statue along with other stone anomalies with cheap jordan different color arrows. This helped bring it to Waring’s attention, wholesale jordan shoes for sale who cheap jordans claims that the head was likely part of a larger cheap jordans statue that discount nike jordans was broken apart during some air jordan shoes past cataclysmic event. The clarity of the head and face is wholesale jordan shoes stunning. This makes it difficult to dismiss Waring’s conclusion Cheap jordans that the wholesale jordan shoes photo is powerful evidence of a jordan shoes for cheap past cheap jordan shoes civilization on Mars.

Minko Chen said...

cheap snapbacks, http://www.cheapsnapbacks.us.com/
coach outlet,coach outlet online,coach outlet store
cheap nfl jerseys, http://www.cheap-nfljersey.us.com/
nike free run, http://www.nikefreerunning.org/
coach outlet online, http://www.coachoutletonline-store.us.com/
hollister,abercrombie,abercrombie fitch,hollister france,hollister pas cher,abercrombie and fitch,hollister pas cher
oakley, http://www.occhialioakleyoutlets.it/
air force one shoes, http://www.airforce1.us.com/
coach outlet online, http://www.coachoutletstoreonline.in.net/
michael kors factory outlet, http://www.michaelkorsfactoryoutlets.in.net/
swarovski crystal, http://www.swarovskioutlet.org.uk/
coach outlet, http://www.coachoutletstoreonline.in.net/
louis vuitton outlet,louis vuitton outlet online,louis vuitton,louisvuitton.com,authentic louis vuitton,louis vuitton factory outlet,cheap louis vuitton
north face jackets, http://www.thenorthfaceclearances.us.com/
miami dolphins jerseys, http://www.miamidolphinsjersey.com/
nba jerseys, http://www.nbajerseys.us.com/
wm917

Hua Cai said...

ralph lauren outlet
burberry outlet
herve leger dresses
reebok shoes
louis vuitton bags cheap
cartier outlet store
michael kors outlet uk
louis vuitton pas cher
ray-ban sunglasses
ray ban sunglasses
michael kors handbags
true religion outlet
tory burch outlet online
kate spade uk
oakley sunglasses
michael kors uk
coach outlet online
cheap nba jerseys
louis vuitton bags
nike air force 1
ralph lauren,polo ralph lauren,ralph lauren outlet,ralph lauren italia,ralph lauren sito ufficiale
coach outlet
soccer jerseys
basketball shoes
chrome hearts
michael kors outlet clearance
louboutin pas cher
kate spade handbags
nike huarache
louis vuitton handbags
michael kors handbags outlet
burberry outlet online
tory burch outlet
tiffany outlet
true religion jeans
20160528caihuali

xumeiqing said...

2016718meiqing
coach outlet store
timberlands
reebok pump
versace sunglasses
ray bans
true religion outlet
canada goose jackets
louboutin
nike air max uk
canada goose outlet online
louis vuitton handbags
nike huarache trainers
discount nike shoes
michael kors outlet
uggs outlet
true religion jeans
canada goose jackets
nike free flyknit 4.0
longchamp outlet
abercrombie and fitch outlet
ralph lauren outlet
michael kors outlet
nike roshe run women
adidas nmd r1
babyliss pro
nike air force 1
michael kors outlet
uggs sale
coach outlet
kate spade handbags
ghd flat iron
oakley sunglasses
christian louboutin shoes
ray ban sunglasses discount
polo outlet
michael kors outlet online

Gege Dai said...

ralph lauren outlet
louis vuitton neverfull sale
giuseppe zanotti shoes
mont blanc pens
christian louboutin outlet
christian louboutin shoes
true religion uk outlet
coach outlet online
moncler outlet
nike tn pas cher
tiffany jewellery
hermes outlet store
omega watches
ugg outlet
tods outlet
true religion outlet uk
kobe shoes
longchamp outlet
air max 90
louis vuitton handbags outlet
swarovski crystal
ralph lauren pas cher
nfl jerseys wholesale
ralph lauren outlet
ugg boots
nike free running
michael kors outlet
cheap jordans
coach outlet canada
michael kors outlet
longchamp
michael kors outlet clearance
yeezy boost
camisetas futbol baratas
coach outlet
0808jianxiang

Unknown said...

coach factory outlet
louis vuitton outlet
ray ban sunglasses
cheap jordans
nike air max uk
moncler outlet online
true religion outlet
christian louboutin sale
ray ban sunglasses outlet
kobe shoes
chanyuan2017.02.13

John said...

christian louboutin
abercrombie outlet
fit flops
tory burch outlet online
coach outlet online
pandora bracelet
canada goose outlet
true religion outlet store
valentino shoes
jimmy choo shoes
20147215yuanyuan

raybanoutlet001 said...

pittsburgh steelers jersey
cheap ray bans
longchamp le pliage
air jordan uk
ecco shoes outlet
new york knicks
louis vuitton pas cher
armani exchange
fitflops sale clearance
baltimore ravens jerseys

dong dong23 said...

adidas nmd
burberry outlet
coach outlet online
oakley sunglasses
nike air max
fred perry polo shirts
jordans
christian louboutin outlet
adidas outlet
tiffany co
20173.18wengdongdong

LCc 03 said...

adidas tubular
michael kors outlet
air max 2016
true religion jeans
longchamp
michael kors outlet
adidas online shop
adidas ultra boost uncaged
adidas superstar
nike zoom

New and Renewable Energy

New and Renewable Energy
Your source for the New and Renewable Energy News and Technologies