Low-Dimensional Perovskites: Physical Properties and Applications
A special issue of Nanomaterials (ISSN 2079-4991).
Deadline for manuscript submissions: closed (22 December 2020) | Viewed by 8512
Special Issue Editor
Interests: optical properties; optical micro-spectroscopy; light-matter interaction; exciton recombination dynamics; low-dimensional semiconductors; quantum dots; quantum wells; 2D semiconductors; metal halide perovskites; nanomaterials; nanocrystals; metal nanoparticles; photonics; plasmonics; photodetectors
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Special Issue Information
Dear Colleagues,
Metal halide perovskites (MHPs) with the general formula ABX3 (A = organic, alcaline; B = Pb, Sn; X = Br) are successfully being used in photovoltaics with power conversion efficiencies greater than 25%, but also in optoelectronic devices as well as diverse applications in photonics. More recently the so-called 2D and 2D/3D organic–inorganic perovskites, or Ruddlesden–Popper and Dion–Jacobson layered perovskites, have attracted attention because they can lead to more stable optoelectronic devices. However, organometal halide perovskites can be also chemically synthesized with 1D and even 0D structures, even if these low-dimensional materials are still mostly unexplored. The 2D semiconductor perovskites are characterized by large exciton binding energies due to the two-dimensional dielectric environment which enhances the electron-hole Coulomb interaction. This property is good for emitting devices, but it will lead to worse transport and efficiency in solar cells. On the other hand, perovskite nanocrystals can also exhibit quantum size confinement in one (nanoplatelets, nanosheets, etc.) to three directions (nanocubes, nanospheres) by controlling chemical synthesis conditions.
This Special Issue will be focused on basic research related to the preparation of low dimensional perovskite and perovskite-like materials in the form of thin films and nanocrystals (containing lead, but also lead-free), together with their structural, electronic, optical and electrical properties. Of course, studies on current and prospective applications (solar cells, photodetectors, LEDs, stimulated emission and lasing, photonics, etc.) of these materials are also welcome for the present special issue.
Prof. Dr. Juan P. Martínez Pastor
Guest Editor
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