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SOLAR CELL INCLUDING LIGHT-ABSORBING LAYER CONTAINING PEROVSKITE TYPE COMPOUND

  • US 20170149005A1
  • Filed: 11/16/2016
  • Published: 05/25/2017
  • Est. Priority Date: 11/24/2015
  • Status: Abandoned Application
First Claim
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1. A solar cell comprising:

  • a first electrode;

    an electron transport layer which is located on the first electrode and which contains a semiconductor;

    a light-absorbing layer which is located on the electron transport layer and which contains a perovskite type compound represented by a composition formula AMX3, where A is a site for one or more monovalent cations, M is a site for one or more divalent cations, and X is a site for one or more halide anions;

    a second electrode which is located on the light-absorbing layer; and

    a sealing body which seals at least a part of the first electrode, the electron transport layer, the light-absorbing layer, and at least a part of the second electrode, wherein;

    a gas is present in a space between the sealing body and each of the at least a part of the first electrode, the electron transport layer, the light-absorbing layer, and the at least a part of the second electrode;

    the gas contains oxygen;

    a concentration of the oxygen in the gas is 5% or more on a volume fraction basis; and

    a concentration of water in the gas is 300 ppm or less on a volume fraction basis.

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