Principles of melting in hybrid organic-inorganic perovskite and polymorphic ABX3 structures
| Autor: | Shaw, Bikash Kumar, Castillo-Blas, Celia, Thorne, Michael F, Ríos Gómez, María Laura, Forrest, Tom, Lopez, Maria Diaz, Chater, Philip A, McHugh, Lauren N, Keen, David A, Bennett, Thomas D |
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| Přispěvatelé: | Shaw, Bikash Kumar [0000-0003-3249-2487], Thorne, Michael F [0000-0002-3188-2478], Chater, Philip A [0000-0002-5513-9400], McHugh, Lauren N [0000-0003-2032-0450], Keen, David A [0000-0003-0376-2767], Bennett, Thomas D [0000-0003-3717-3119], Apollo - University of Cambridge Repository, Bennett, Thomas [0000-0003-3717-3119] |
| Rok vydání: | 2022 |
| Předmět: | |
| DOI: | 10.17863/cam.83548 |
| Popis: | Funder: European Social Fund Funder: University of Cambridge Four novel dicyanamide-containing hybrid organic-inorganic ABX3 structures are reported, and the thermal behaviour of a series of nine perovskite and non-perovskite [AB(N(CN)2)3] (A = (C3H7)4N, (C4H9)4N, (C5H11)4N; B = Co, Fe, Mn) is analyzed. Structure-property relationships are investigated by varying both A-site organic and B-site transition metal cations. In particular, increasing the size of the A-site cation from (C3H7)4N → (C4H9)4N → (C5H11)4N was observed to result in a decrease in T m through an increase in ΔS f. Consistent trends in T m with metal replacement are observed with each A-site cation, with Co < Fe < Mn. The majority of the melts formed were found to recrystallise partially upon cooling, though glasses could be formed through a small degree of organic linker decomposition. Total scattering methods are used to provide a greater understanding of the melting mechanism. |
| Databáze: | OpenAIRE |
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