scholarly journals Alloying a Single and a Double Perovskite: A Cu+/2+ Mixed-Valence Layered Halide Perovskite with Strong Optical Absorption

2021 ◽  
Author(s):  
Bridget Connor ◽  
Rebecca Smaha ◽  
Jiayi Li ◽  
Aryeh Gold-Parker ◽  
Alexander Heyer ◽  
...  
Keyword(s):  
Optical Absorption ◽  
Mixed Valence ◽  
Double Perovskite ◽  
Optoelectronic Properties ◽  
Octahedral Sites ◽  
Halide Perovskites ◽  
Halide Perovskite

Introducing heterovalent cations at the octahedral sites of halide perovskites can substantially change their optoelectronic properties. Yet, in most cases, only small amounts of such metals can be incorporated as...

scholarly journals Optical in situ monitoring during the synthesis of halide perovskite solar cells reveals formation kinetics and evolution of optoelectronic properties

2020 ◽  
Vol 8 (20) ◽  
pp. 10439-10449
Author(s):  
Klara Suchan ◽  
Justus Just ◽  
Pascal Becker ◽  
Eva L. Unger ◽  
Thomas Unold
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Optoelectronic Properties ◽  
In Situ Monitoring ◽  
Formation Kinetics ◽  
Halide Perovskites ◽  
Halide Perovskite

Optical in situ monitoring tracks crystallization and optoelectronic properties of halide perovskites during growth in a glovebox environment.

Highly Emissive Halide Perovskite Nanocrystals: From Lead to Lead-Free

CrystEngComm ◽  
2021 ◽  
Author(s):  
Chunlong Li ◽  
Jie Li ◽  
Zhengping Li ◽  
Huayong Zhang ◽  
Yangyang Dang ◽  
...  
Keyword(s):  
Charge Carriers ◽  
Lead Free ◽  
Quantum Yields ◽  
Local Management ◽  
Perovskite Nanocrystals ◽  
Halide Perovskites ◽  
Halide Perovskite

Nanostructured halide perovskites have highly yielded record LEDs due to their higher versatility in the local management of charge carriers, which has enabled photoluminescence quantum yields (PLQYs) close to 100%....

scholarly journals Nanometer-Thick [(FPEA)2PbX4; X=I, Br] 2D Halide Perovskite Based Thin Films for Pollutant Detection and Nonconventional Photocatalytic Degradation

2021 ◽  
Author(s):  
Arindam Mondal ◽  
Akash Lata ◽  
Aarya Prabhakaran ◽  
Satyajit Gupta
Keyword(s):  
Thin Films ◽  
Photocatalytic Degradation ◽  
Three Dimensional ◽  
Two Dimensional ◽  
Reduced Dimensionality ◽  
P Application ◽  
Halide Perovskites ◽  
Halide Perovskite ◽  
Pollutant Detection

Application of three-dimensional (3D)-halide perovskites (HaP) in photocatalysis encourages the new exercise with two-dimensional (2D) HaP based thin-films for photocatalytic degradation of dye. The reduced dimensionality to 2D-HaPs, with a...

Structural and optoelectronic properties of hybrid halide perovskites for solar cells

2021 ◽  
Vol 91 ◽  
pp. 106077
Author(s):  
Faiza Jan Iftikhar ◽  
Qamar Wali ◽  
Shengyuan Yang ◽  
Yaseen Iqbal ◽  
Rajan Jose ◽  
...  
Keyword(s):  
Solar Cells ◽  
Optoelectronic Properties ◽  
Halide Perovskites ◽  
Structural And Optoelectronic Properties

Hierarchical computational screening of layered lead-free metal halide perovskites for optoelectronic applications

2021 ◽  
Author(s):  
Qiuqi Li ◽  
Dan Cao ◽  
Xueyin Liu ◽  
Xiangyu Zhou ◽  
Xiaoshuang Chen ◽  
...  
Keyword(s):  
High Stability ◽  
Screening Method ◽  
Optoelectronic Properties ◽  
Metal Halide ◽  
Lead Free ◽  
Computational Screening ◽  
Halide Perovskites ◽  
Optoelectronic Applications ◽  
Free Metal

A hierarchical computational screening method is used to find layered lead-free metal halide perovskites with high stability and outstanding optoelectronic properties.

scholarly journals Tailoring the electron and hole dimensionality to achieve efficient and stable metal halide perovskite scintillators

Nanophotonics ◽  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Zhifang Tan ◽  
Jincong Pang ◽  
Guangda Niu ◽  
Jun-Hui Yuan ◽  
Kan-Hao Xue ◽  
...  
Keyword(s):  
Water Solubility ◽  
Radiation Stability ◽  
Metal Halide ◽  
Lead Free ◽  
X Ray ◽  
Metal Halide Perovskite ◽  
Bonding Interaction ◽  
Halide Perovskites ◽  
Halide Perovskite ◽  
Low X

Abstract Metal halide perovskites have recently been reported as excellent scintillators for X-ray detection. However, perovskite based scintillators are susceptible to moisture and oxygen atmosphere, such as the water solubility of CsPbBr3, and oxidation vulnerability of Sn2+, Cu+. The traditional metal halide scintillators (NaI: Tl, LaBr3, etc.) are also severely restricted by their high hygroscopicity. Here we report a new kind of lead free perovskite with excellent water and radiation stability, Rb2Sn1-x Te x Cl6. The equivalent doping of Te could break the in-phase bonding interaction between neighboring octahedra in Rb2SnCl6, and thus decrease the electron and hole dimensionality. The optimized Te content of 5% resulted in high photoluminescence quantum yield of 92.4%, and low X-ray detection limit of 0.7 µGyair s−1. The photoluminescence and radioluminescence could be maintained without any loss when immersing in water or after 480,000 Gy radiations, outperforming previous perovskite and traditional metal halides scintillators.

Two‐Dimensional Halide Perovskites: Approaches to Improve Optoelectronic Properties

2021 ◽  
Author(s):  
Avija Ajayakumar ◽  
Chinnadurai Muthu ◽  
Amarjith V. Dev ◽  
Johnpaul K. Pious ◽  
Chakkooth Vijayakumar
Keyword(s):  
Optoelectronic Properties ◽  
Two Dimensional ◽  
Halide Perovskites
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