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Novel Organic-Inorganic Hybrid Materials for Efficient Light Emission

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Optics and Lasers".

Deadline for manuscript submissions: closed (31 August 2020) | Viewed by 5608

Special Issue Editor


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Guest Editor
Ewha Womans University Research Institute for Basic Sciences (IBS) - Quantum Nano Science
Interests: semiconductor characterization; materials discovery; pump-probe spectroscopy; device fabrication; ab-initio methods

Special Issue Information

Dear Colleagues,

A novel class of Organic-Inorganic Hybrid materials, often referred to as lead-halide perovskites, have been introduced about a decade ago as efficient absorber in photovoltaic cells. Within only a few years these materials have been applied to not only solar cells but also transistors, photodetectors and light-emitting diodes, owing to their fascinating opto-electronic properties.

In the beginning research was focused on providing high-efficiency and long-term stable photovoltaic cells but in recent years their application in light-emitting diodes (LED) has attracted increasing interest from the scientific community. A few key publications have established that lead-halide perovskites are ideal light-emitting materials covering a wide color space from the infrared to the blue end of the visible spectrum, delivering high internal and external quantum efficiencies and wall-plug efficiencies that start to rival established technologies.

This special issue focuses on organic-inorganic hybrid materials and their application as light-emitters in LEDs. It will highlight recent progress and challenges and provide insight into what to expect from this fascinating field for the years to come.

Dr. Christoph Wolf
Guest Editor

Manuscript Submission Information

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Keywords

  • Organic-inorganic hybrid materials
  • Light-emitting diodes
  • Light-emission
  • Novel optoelectronic materials
  • Materials characterization
  • Device engineering
  • Device characterization

Published Papers (2 papers)

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11 pages, 2945 KiB  
Article
Investigation of Open Air Stability of CsPbBr3 Thin-Film Growth on Different Substrates
by Nicola Calisi and Stefano Caporali
Appl. Sci. 2020, 10(21), 7775; https://doi.org/10.3390/app10217775 - 3 Nov 2020
Cited by 5 | Viewed by 2568
Abstract
Originally developed out of scientific curiosity, lead halide perovskites are rapidly gaining success due to their broad tenability and ease of fabrication. Despite these advantages and the considerable progress made in the efficiency of perovskite-based devices, the stability of such materials remains a [...] Read more.
Originally developed out of scientific curiosity, lead halide perovskites are rapidly gaining success due to their broad tenability and ease of fabrication. Despite these advantages and the considerable progress made in the efficiency of perovskite-based devices, the stability of such materials remains a challenge. In this research paper, the role of substrate materials on which thin films of perovskites were deposited was examined, highlighting their critical importance for atmosphere-induced degradation. Indeed, CsPbBr3 thin films sputtered on glass (soda lime and quartz) and indium tin oxide (ITO) resulted more stable, while those deposited on polycrystalline gold-coated glass were much more prone to degradation in a temperature- and moisture-controlled (43% relative humidity (RH)) atmosphere. Full article
(This article belongs to the Special Issue Novel Organic-Inorganic Hybrid Materials for Efficient Light Emission)
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10 pages, 1758 KiB  
Letter
Tightly Compacted Perovskite Laminates on Flexible Substrates via Hot-Pressing
by Bilin Yang, Yujun Xie, Pan Zeng, Yurong Dong, Qiongrong Ou and Shuyu Zhang
Appl. Sci. 2020, 10(6), 1917; https://doi.org/10.3390/app10061917 - 11 Mar 2020
Cited by 2 | Viewed by 2792
Abstract
Pressure and temperature are powerful tools applied to perovskites to achieve recrystallization. Lamination, based on recrystallization of perovskites, avoids the limitations and improves the compatibility of materials and solvents in perovskite device architectures. In this work, we demonstrate tightly compacted perovskite laminates on [...] Read more.
Pressure and temperature are powerful tools applied to perovskites to achieve recrystallization. Lamination, based on recrystallization of perovskites, avoids the limitations and improves the compatibility of materials and solvents in perovskite device architectures. In this work, we demonstrate tightly compacted perovskite laminates on flexible substrates via hot-pressing and investigate the effect of hot-pressing conditions on the lamination qualities and optical properties of perovskite laminates. The optimized laminates achieved at a temperature of 90 °C and a pressure of 10 MPa could sustain a horizontal pulling pressure of 636 kPa and a vertical pulling pressure of 71 kPa. Perovskite laminates exhibit increased crystallinity and a crystallization orientation preference to the (100) direction. The optical properties of laminated perovskites are almost identical to those of pristine perovskites, and the photoluminescence quantum yield (PLQY) survives the negative impact of thermal degradation. This work demonstrates a promising approach to physically laminating perovskite films, which may accelerate the development of roll-to-roll printed perovskite devices and perovskite tandem architectures in the future. Full article
(This article belongs to the Special Issue Novel Organic-Inorganic Hybrid Materials for Efficient Light Emission)
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