19-04-2018 дата публикации
Номер: US20180105543A1
Принадлежит:
An aspect of the present disclosure is a method that includes combining a first organic salt (AX), a first metal salt) a second organic salt (AX), a second metal salt (MCl), and a solvent to form a primary solution, where AXand M(X)are present in the primary solution at a first ratio between about 0.5 to 1.0 and about 1.5 to 1.0, and AXto MClare present in the primary solution at a second ratio between about 2.0 to 1.0 and about 4.0 to 1.0. In some embodiments of the present disclosure, at least one of Aor Amay include at least one of an alkyl ammonium, an alkyl diamine, cesium, and/or rubidium. 1. A method comprising:{'sup': 1', '1', '1', '2', '2', '3', '2, 'sub': 2', '2, 'combining a first organic salt (AX), a first metal salt (M(X)), a second organic salt (AX), a second metal salt (MCl), and a solvent to form a primary solution, wherein{'sup': 1', '1', '1', '2, 'sub': '2', 'AXand M(X)are present in the primary solution at a first ratio between about 0.5 to 1.0 and about 1.5 to 1.0; and'}{'sup': 2', '3', '2, 'sub': '2', 'AXto MClare present in the primary solution at a second ratio between about 2.0 to 1.0 and about 4.0 to 1.0.'}2. The method of claim 1 , wherein at least one of Aor Acomprises at least one of an alkyl ammonium claim 1 , an alkyl diamine claim 1 , cesium claim 1 , or rubidium.3. The method of claim 2 , wherein at least one of Aor Acomprises at least one of methylammonium claim 2 , ethyl ammonium claim 2 , propylammonium claim 2 , or butyl ammonium.4. The method of claim 2 , wherein at least one of Aor Acomprises formamidinium.5. The method of claim 1 , wherein at least one of Mor Mcomprises a metal having a 2+ valence state.6. The method of claim 5 , wherein at least one of Mor Mcomprises at least one of lead claim 5 , tin claim 5 , or germanium.7. The method of claim 1 , wherein at least one of X claim 1 , X claim 1 , or Xcomprises a halogen.8. The method of claim 7 , wherein at least one of X claim 7 , X claim 7 , or Xcomprises at least one of ...
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