5ab0642b   
   XPost: sci.physics, sci.electronics.design, sci.chem   
   From: benj@iwaynet.net   
      
   On Tue, 30 Apr 2013 14:02:30 -0700, RichD wrote:   
      
      
   > So, it's possible to see high quantum efficency,   
   > but low power output efficiency?   
      
   No. IF Quantum efficiency is the ratio of photons in to electrons out,   
   then any inefficiency will reduce that ratio.   
      
   > That would be an argument for thin junctions, yes/no?   
      
   It's not that simple. Thin junctions reduce recombination but you lose   
   efficiency if the light goes clear through the thin junction without   
   being absorbed. So there are lots of compromises here. It's why this sort   
   of thing has a lot of "art" to the designs.   
      
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