07-01-2016 дата публикации
Номер: US20160005547A1
Принадлежит:
Provided is a solar cell including: a first electrode; an electron transport layer positioned on the first electrode; a light absorber; a hole transport layer; and a second electrode, wherein the light absorber contains a solid-solution of at least two organic-metal halides with a perovskite structure, having different compositions from each other. 1. A solar cell comprising: a first electrode; an electron transport layer positioned on the first electrode; a light absorber; a hole transport layer; and a second electrode , wherein the light absorber contains a solid-solution of at least two organic-metal halides with a perovskite structure , having different compositions from each other.2. The solar cell of claim 1 , wherein among at least two organic-metal halides forming the solid-solution claim 1 , one organic-metal halide is iodide claim 1 , and another organic-metal halide is bromide claim 1 , orone organic-metal halide is bromide, and another organic-metal halide is chloride.3. The solar cell of claim 1 , wherein among at least two organic-metal halides forming the solid-solution claim 1 , one organic-metal halide satisfies the following Chemical Formula 1 claim 1 , and another organic-metal halide satisfies the following Chemical Formula 2:{'br': None, 'sub': '3', 'AMX\u2003\u2003(Chemical Formula 1)'}{'sup': +', '−, 'claim-text': {'br': None, 'sub': '3', 'A″M′X′\u2003\u2003(Chemical Formula 2)'}, '(in Chemical Formula 1, A is a monovalent organic ammonium ion, a monovalent ammonium ion, or Cs, M is a divalent metal ion, and X is Br), and'}{'sup': +', '−', '−, '(in Chemical Formula 2, A′ is a monovalent organic ammonium ion, a monovalent ammonium ion, or Cs, M′ is a divalent metal ion, and X′ is I or Cl).'}4. The solar cell of claim 1 , wherein the solid-solution satisfies the following Chemical Formula 3:{'br': None, 'sub': 1(1-m)', '2(m)', '3, 'A″M″(XX)\u2003\u2003(Chemical Formula 3)'}{'sup': −', '−', '−', '−, 'sub': 1', '2, '(in Chemical Formula 3, A″ is a ...
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