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Guan‐E Wang Gang Xu Ning‐Ning Zhang Ming‐Shui Yao Ming‐Sheng Wang Guo‐Cong Guo 《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2019,131(9):2718-2721
Superlattice materials offer new opportunities to modify optical and electrical properties of recently emerging 2D materials. The insertion of tetraethylbenzidine (EtDAB) into interlamination of the established 2D PbI2 semiconductor through a mild solution method yielded the first lead iodide superlattice, EtDAB?4PbI2 (EtDAB=tetraethylbenzidine), with radical and non‐radical forms. The non‐radical form has a non‐ionic structure that differs from the common ionic structures for inorganic–organic hybrid lead halides. The radical form shows five orders of magnitude greater conductance and broader photoconductive response range (UV/Vis → UV/Vis‐IR), than pure PbI2 and the non‐radical form of the superlattice. 相似文献
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