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THIN-FILM PHOTOVOLTAIC DEVICE WITH OPTICAL FIELD CONFINEMENT AND METHOD FOR MAKING SAME

  • US 20150122324A1
  • Filed: 05/17/2013
  • Published: 05/07/2015
  • Est. Priority Date: 05/18/2012
  • Status: Abandoned Application
First Claim
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1. A photovoltaic device comprising:

  • a first electrode layer and a second electrode layer; and

    a waveguiding structure disposed between the first electrode layer and the second electrode layer and comprising an active layer adapted to convert photons transmitted to the active layer to electrons and holes, the waveguiding structure further comprising a first layer adjacent the first electrode layer, the first layer comprising a hole-conducting material having a first index of refraction, and a second layer comprising an electron-conducting material having a second index of refraction, wherein the active layer is disposed therebetween; and

    wherein the active layer has an index of refraction that is less than each of the first index of refraction and the second index of refraction and a thickness, the waveguiding structure being characterized by guided modes and adapted for optically confining the photons within the active layer.

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