Special Issue "Crystal Growth and Defect Engineering for Metal Halide Perovskite Optoelectronics"

A special issue of Materials (ISSN 1996-1944).

Deadline for manuscript submissions: 30 September 2021.

Special Issue Editors

Prof. Dr. Jin-Wook Lee
E-Mail Website1 Website2
Guest Editor
SKKU Advanced Institute of Nanotechnology (SAINT) and Department of Nanoengineering Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
Interests: optoelectronic devices (solar cells, light emitting diodes, photodetectors); nanostructured organic/inorganic materials (perovskites, chalcogenides, polymers, carbon allotropes, metal oxides); doping, crystal growth and defect engineering of semiconducting materials; optoelectronic device physics; wearable devices and electronic skin based on flexible/stretchable devices
Dr. Gill Sang Han
E-Mail Website
Guest Editor
School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon 16419, Korea
Interests: perovskite solar cells; transparent conducting oxides; interface engineering

Special Issue Information

Dear Colleagues,

The Special Issue “Crystal Growth and Defect Engineering for Metal Halide Perovskite Optoelectronics” will address advances in the techniques for crystal growth and defect engineering for various types of perovskite optoelectronic devices. Over the last few years, metal halide perovskite materials have become one of the most promising materials for next-generation optoelectronic devices. The revolutionary enhancement of their performance and stability is mainly attributed to the development of effective techniques for crystal growth and defect engineering, enabling substantial improvement in the optoelectronic properties of perovskite thin films. For example, the control of molecular interactions in precursor solutions facilitates modulation of crystallization kinetics to enhance the crystallinity of perovskite films while molecular passivation agents mitigate detrimental defects in the surface and grain boundaries of the films. We are interested in original articles and reviews dealing with such approaches for a variety of perovskite optoelectronic devices, including solar cells, light emitting diodes, and photodiodes. Not only studies of optoelectronic devices, but articles elucidating the fundamentals of the chemistry, physics, and materials science in crystal growth and defect engineering are also very welcome.

Prof. Jin-Wook Lee
Dr. Gill Sang Han
Guest Editors

Manuscript Submission Information

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Keywords

  • perovskite
  • crystal growth
  • defects
  • solar cells
  • light emitting diodes
  • photodetectors
  • passivation

Published Papers (2 papers)

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Research

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Open AccessArticle
In-Situ Nano-Auger Probe of Chloride-Ions during CH3NH3PbI3−xClx Perovskite Formation
Materials 2021, 14(5), 1102; https://doi.org/10.3390/ma14051102 - 26 Feb 2021
Viewed by 369
Abstract
Organo-halide perovskite solar cells (PSCs) have emerged as next-generation photovoltaics, owing to their high power-conversion efficiency (PCE), lower production cost, and high flexibility. ABX3-structured methylammonium lead triiodide (CH3NH3PbI3 or MAPbI3) perovskite is a widely [...] Read more.
Organo-halide perovskite solar cells (PSCs) have emerged as next-generation photovoltaics, owing to their high power-conversion efficiency (PCE), lower production cost, and high flexibility. ABX3-structured methylammonium lead triiodide (CH3NH3PbI3 or MAPbI3) perovskite is a widely studied light-absorbing material in PSCs. Interestingly, a small amount of chlorine incorporation into MAPbI3 increases charge carrier diffusion lengths (from 129 nm to 1069 nm), which enables planar structured PSCs with high PCEs. However, existence of chloride ions in the final perovskite film is still under debate. Contrastingly, few studies reported a negligible amount or absence of chloride ions in the final film, while others reported detection of chloride ions in the final film. Herein, we observed the microstructure and chlorine content of MAPbI3−xClx thin films with increasing temperature via an in-situ nano-Auger spectroscopy and in-situ scanning electron microscopic analysis. The relative precipitation of MAPbI3−xClx films occur at lower temperature and MAPbI3−xClx grains grow faster than those of MAPbI3 grains. Local concentrations of chlorine at intragrain and the vicinity of grain boundary were analyzed to understand the behavior and role of the chloride ions during the microstructural evolution of the MAPbI3−xClx films. Full article
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Review

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Open AccessReview
3D/2D Bilayerd Perovskite Solar Cells with an Enhanced Stability and Performance
Materials 2020, 13(17), 3868; https://doi.org/10.3390/ma13173868 - 01 Sep 2020
Cited by 2 | Viewed by 1015
Abstract
The formation of a thin 2D perovskite layer on the surface of 3D perovskite films has become a popular strategy for obtaining a high-efficiency perovskite solar cell (PSC) with an ensured device stability. In this review paper, various experimental methods used for growth [...] Read more.
The formation of a thin 2D perovskite layer on the surface of 3D perovskite films has become a popular strategy for obtaining a high-efficiency perovskite solar cell (PSC) with an ensured device stability. In this review paper, various experimental methods used for growth of the 2D layer are introduced with the resulting film properties. Furthermore, a variety of organic cation sources for the 2D layer, ranging from alkyl to phenyl ammonium, are explored to investigate their impact on the device stability and photovoltaic performance. Full article
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Planned Papers

The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.

Authors: Jin-Wook Lee; Gillsang Han

Title: Precursor chemistry for crystal growth engineering of perovskite solar cells

Affiliation: SKKU Advanced Institute of Nanotechnology (SAINT) and Department of Nanoengineering, Sungkyunkwan University, Suwon 16419, Republic of Korea; School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon 16419, Korea

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