Halide Perovskites as Emergent Semiconductors: Materials Preparation, Basic Physics and Possible Applications 2

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Applied Physics General".

Deadline for manuscript submissions: closed (31 May 2022) | Viewed by 458

Special Issue Editors


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Guest Editor
Dipartimento di Matematica e Fisica Ennio de Giorgi, Universita del Salento, 73100 Lecce, Italy
Interests: optical spectroscopy; laser–matter interaction; scanning electron microscopy; X-ray microanalysis
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Special Issue Information

Dear Colleagues,

Lead halide perovskite thin films have been receiving increasing attention in the last few years, initially stimulated by the impressive improvement in the performance of perovskite solar cells, recently reaching a record power conversion efficiency close to 23 %.

Beyond the excellent photovoltaic properties, lead halide perovskites also show excellent optical properties, including high photoluminescence quantum yield (QY), tunable emission from the blue to the near infrared, and high optical gains at room temperature. All these properties, together with the possibility of the realization of thin films from solutions, make halide perovskites the most promising novel class of semiconductor for photonics and optoelectronic applications.

The research into perovskite is very broad and includes the development of methods for active materials synthesis and their deposition, the investigation of fundamental electronic properties, and the realization, characterization and optimization of solar cells, light emitting diodes and optically pumped lasers.

Concerning the materials development, different families of perovskites have been realized to date, including organic–inorganic lead halides, fully inorganic lead halides, and lead-free perovskites, allowing the realization of both solution-processed bulk thin films and of nanocrystals with a controlled shape, size and chemical composition.

It is also interesting that even if some of these materials have been exploited for the realization of devices with quickly improving performance, many basic aspects of the photophysics of perovskites are still unclear and the subject of debate, like the nature of the emitting species (excitons or free carriers), the role of defects, and the origin of the temperature dependence of the emission properties.

This Special Issue aims to describe the actual state of the art of the wide research on perovskite semiconductors, including the open issues that still require a fuller understanding, and possible future development directions.

Dr. Marco Anni
Dr. Maria Luisa De Giorgi
Guest Editors

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Keywords

  • halide perovskites
  • photovoltaic properties
  • perovskite semiconductors

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