scholarly journals Role of Phase Nanosegregation in the Photoluminescence Spectra of Halide Perovskites

2021 ◽  
pp. 11659-11665
Author(s):  
Alessia Di Vito ◽  
Alessandro Pecchia ◽  
Matthias Auf der Maur ◽  
Valerio Campanari ◽  
Faustino Martelli ◽  
...  
Keyword(s):  
Photoluminescence Spectra ◽  
Halide Perovskites

scholarly journals Role of Lead Vacancies for Optoelectronic Properties of Lead-Halide Perovskites

2017 ◽  
Vol 122 (10) ◽  
pp. 5216-5226 ◽  
Author(s):  
Dayton J. Vogel ◽  
Talgat M. Inerbaev ◽  
Dmitri S. Kilin
Keyword(s):  
Optoelectronic Properties ◽  
Halide Perovskites ◽  
Lead Halide

The role of excitons in 3D and 2D lead halide perovskites

2019 ◽  
Vol 7 (39) ◽  
pp. 12006-12018 ◽  
Author(s):  
Daniela Marongiu ◽  
Michele Saba ◽  
Francesco Quochi ◽  
Andrea Mura ◽  
Giovanni Bongiovanni
Keyword(s):  
Light Emission ◽  
Minority Species ◽  
Halide Perovskites ◽  
Almost All ◽  
Lead Halide

Excitons in lead halide perovskites often go unnoticed as minority species, yet they account for almost all of light emission.

Photophysics of Hybrid Lead Halide Perovskites: The Role of Microstructure

2016 ◽  
Vol 49 (3) ◽  
pp. 536-544 ◽  
Author(s):  
Ajay Ram Srimath Kandada ◽  
Annamaria Petrozza
Keyword(s):  
Halide Perovskites ◽  
Lead Halide

Role of Tin Chloride in Tin-Rich Mixed-Halide Perovskites Applied as Mesoscopic Solar Cells with a Carbon Counter Electrode

2016 ◽  
Vol 1 (6) ◽  
pp. 1086-1093 ◽  
Author(s):  
Cheng-Min Tsai ◽  
Hui-Ping Wu ◽  
Sun-Tang Chang ◽  
Chi-Feng Huang ◽  
Chia-Hsin Wang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Counter Electrode ◽  
Tin Chloride ◽  
Halide Perovskites

scholarly journals Role of Polar Phonons in the Photo Excited State of Metal Halide Perovskites

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Menno Bokdam ◽  
Tobias Sander ◽  
Alessandro Stroppa ◽  
Silvia Picozzi ◽  
D. D. Sarma ◽  
...  
Keyword(s):  
Excited State ◽  
Metal Halide ◽  
Halide Perovskites

Role of radiation defects in photoconductivity transients and photoluminescence spectra of epitaxial GaN layers

2005 ◽  
Vol 2 (7) ◽  
pp. 2429-2432 ◽  
Author(s):  
E. Gaubas ◽  
K. Kazlauskas ◽  
J. Vaitkus ◽  
A. ?ukauskas
Keyword(s):  
Radiation Defects ◽  
Photoluminescence Spectra

scholarly journals Efficient Emission in Halide Layered Double Perovskites: The Role of Sb3+ Substitution in Cs4Cd1–xMnxBi2Cl12 Phosphors

2020 ◽  
Author(s):  
Brenda Vargas ◽  
Eduardo Coutiño-Gonzalez ◽  
Oscar Ovalle-Encinia ◽  
Citlali Sánchez-Aké ◽  
Diego Solis-Ibarra
Keyword(s):  
Optoelectronic Properties ◽  
Double Perovskites ◽  
Spin Orbit Coupling ◽  
Fixed Amount ◽  
Electronic Delocalization ◽  
The Subject ◽  
Halide Perovskites ◽  
Pl Emission ◽  
Intense Research

Layered halide perovskites and double perovskites optoelectronic properties have recently been the subject of intense research. Layered double perovskites represent the merging of both worlds, and as such, have the potential to further expand the already vast space of optoelectronic properties and applications of halide perovskites. Despite having more than 40 known members, to date, only the <111>-oriented layered double perovskites: Cs<sub>4</sub>Cd<sub>1</sub>–<sub>x</sub>Mn<sub>x</sub><b>Bi</b><sub>2</sub>Cl<sub>12</sub>, have shown efficient photoluminescence (PL). In this work, we replaced Bi with Sb to further investigate the electronic structure and PL properties of these materials, resulting in two new families of layered inorganic perovskites alloys with full solubility. The first family, Cs<sub>4</sub>Cd<sub>1</sub>–<sub>x</sub>Mn<b>Sb</b><sub>2</sub>Cl<sub>12</sub>, exhibits a PL emission at 605 nm ascribed to Mn<sup>2+</sup> centers in octahedral coordination, and a maximum photoluminescence quantum yield PLQY of 28.5%. The second family of alloys, also with full solubility, Cs<sub>4</sub>Cd<sub>0.8</sub>Mn<sub>0.2</sub>(Sb<sub>1</sub>–<sub>y</sub>Bi<sub>y</sub>)<sub>2</sub>Cl<sub>12</sub>, contains a fixed amount of Mn<sup>2+</sup> and Cd<sup>2+</sup> cations but different concentrations of the trivalent metals. This variability allows the tuning of the PL emission from 603 nm to 614 nm. We show that the decreased efficiency of the Cs<sub>4</sub>Cd<sub>1</sub>–<sub>x</sub>Mn<sub>x</sub>Sb<sub>2</sub>Cl<sub>12</sub>family compared to Cs<sub>4</sub>Cd<sub>1</sub>–<sub>x</sub>Mn<sub>x</sub><b>Bi</b><sub>2</sub>Cl<sub>12</sub>, is mostly due to a decreased spin-orbit coupling in Sb and the subsequent increased electronic delocalization compared to the Bi alloys, reducing the energy transfer to Mn<sup>2+</sup> centers. This work lays out a roadmap to understand and achieve high photoluminescence efficiencies in layered double perovskites.<p></p>

Sign in / Sign up

Export Citation Format

Share Document