1.3 Excitonics in 2D Perovskites
Wee Kiang Chong David Giovanni and Tze‐Chien Sum
Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, SPMS‐PAP‐03‐05, Singapore, 637371, Singapore
1.3.1 Introduction to Two‐dimensional Perovskites
Traditionally, the term “perovskite” refers to the calcium titanium oxide mineral (or calcium titanate), which has the formula CaTiO3 and its structure is broadly known as the perovskite structure. Since then, “perovskite” is associated with compounds having a general ABX3 chemical formula. Most recently, “three‐dimensional organic–inorganic hybrid perovskites (3D‐OIHPs)” has emerged as a new player in the scientific arena ...
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