Comments on: Solar Junction Breaks Concentrated Solar World Record with 43.5% Efficiency http://cleantechnica.com/2011/04/19/solar-junction-breaks-concentrated-solar-world-record-with-43-5-efficiency/ Clean Tech News & Views: Solar Energy News. Wind Energy News. EV News. & More. Tue, 30 Dec 2014 16:22:00 +0000 hourly 1 http://wordpress.org/?v=4.0.1 By: New Solar Cell Efficiency Record Set by Solar Junction | Planetsave http://cleantechnica.com/2011/04/19/solar-junction-breaks-concentrated-solar-world-record-with-43-5-efficiency/#comment-137502 Mon, 15 Oct 2012 13:52:35 +0000 http://cleantechnica.com/?p=26043#comment-137502 […] U.S. company Solar Junction set the gold standard for solar cell efficiency last year at 43.5 percent, a worldwide mark that it has just shattered with a new solar cell […]

]]> By: High-Efficiency Solar Cells Getting More Efficient, Cheaper - CleanTechnica http://cleantechnica.com/2011/04/19/solar-junction-breaks-concentrated-solar-world-record-with-43-5-efficiency/#comment-122816 Sun, 03 Jun 2012 12:12:25 +0000 http://cleantechnica.com/?p=26043#comment-122816 […] to electricity at an efficiency of about 15-20%. Update: Solar Junction broke that record above and hit 43.5% efficiency in March 2011. Sharp also hit this record efficiency in April […]

]]> By: Sharp Hits Concentrator Solar Cell Efficiency Record, 43.5% - CleanTechnica http://cleantechnica.com/2011/04/19/solar-junction-breaks-concentrated-solar-world-record-with-43-5-efficiency/#comment-122544 Thu, 31 May 2012 12:12:41 +0000 http://cleantechnica.com/?p=26043#comment-122544 […] Solar Junction Breaks Concentrated Solar World Record with 43.5% Efficiency […]

]]> By: Enrico Reineri http://cleantechnica.com/2011/04/19/solar-junction-breaks-concentrated-solar-world-record-with-43-5-efficiency/#comment-105290 Thu, 06 Oct 2011 16:50:00 +0000 http://cleantechnica.com/?p=26043#comment-105290 “Solar Junction, a company headquartered in San Jose, California has once again broken the efficiency world record for production”

I knew that Spectrolab held the multijunction efficiency record with 41.6% at 364 suns. That “once again”, if referred to Solar Junction’s previous record of 41.1% seems unappropriate.

“Multi-junction solar cells, very simply, consist of several p-n (or positive-negative)”

p-n and the association to positive/negative is not really a proper way to see the situation. In a non-too-technical article that simplistic explanation can work but it’s more appropriare to say abundance of electrons and holes (lack of electrons) due to doping of materials.

]]> By: Anumakonda Jagadeesh http://cleantechnica.com/2011/04/19/solar-junction-breaks-concentrated-solar-world-record-with-43-5-efficiency/#comment-96657 Wed, 20 Apr 2011 00:55:00 +0000 http://cleantechnica.com/?p=26043#comment-96657 The way the efficiency of concentrated solar power is increasing,I am afraid it may cross Betz Coefficient in Wind Energy!

Betz Coefficient 59.3 percent. This is the theoretical maximum efficiency at which a wind generator can operate, by slowing the wind down. If the wind generator slows the wind down too much, air piles up in front of the blades and is not used for extracting energy.

Dr.A.Jagadeesh Nellore(AP),India
Wind Energy Expert
E-mail: anumakonda.jagadeesh@gmail.com

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