Semiconducting [(Bi4Te4Br2)(Al2Cl6–xBrx)]Cl2 and [Bi2Se2Br](AlCl4): Cationic Chalcogenide Frameworks from Lewis Acidic Ionic Liquids
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https://figshare.com/articles/dataset/Semiconducting_Bi_sub_4_sub_Te_sub_4_sub_Br_sub_2_sub_Al_sub_2_sub_Cl_sub_6_i_x_i_sub_Br_sub_i_x_i_sub_Cl_sub_2_sub_and_Bi_sub_2_sub_Se_sub_2_sub_Br_AlCl_sub_4_sub_Cationic_Chalcogenide_Frameworks_from_Lewis_Acidic_Ionic_Liquids/2561125
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资源简介:
Lewis acidic organic ionic liquids provide a novel synthetic medium to prepare new semiconducting chalcogenides, [(Bi4Te4Br2)(Al2Cl5.46Br0.54)]Cl2 (1) and [Bi2Se2Br](AlCl4) (2). Compound 1 features a cationic [(Bi4Te4Br2)(Al2Cl5.46Br0.54)]2+ three-dimensional framework, while compound 2 consists of cationic layers of [Bi2Se2Br]2+. Spectroscopically measured band gaps of 1 and 2 are ∼0.6 and ∼1.2 eV, respectively. Thermoelectric power measurements of single crystals of 1 indicate an n-type semiconductor.
创建时间:
2016-02-22



