A comparative study of hydrostatic pressure treated environmentally friendly perovskites CsXBr3 (X = Ge/Sn) for optoelectronic applications
All-inorganic cubic cesium germanium bromide (CsGeBr3) and cesium tin bromide (CsSnBr3) perovskites have attracted much attention because of their outstanding optoelectronic properties that lead to many modern technological applications. During their evolution process, it can be helpful to decipher...
Main Authors: | , , |
---|---|
Format: | Article |
Language: | English |
Published: |
AIP Publishing LLC
2021-07-01
|
Series: | AIP Advances |
Online Access: | http://dx.doi.org/10.1063/5.0057287 |
id |
doaj-6585c3ce413249eaaec863059220ed2a |
---|---|
record_format |
Article |
spelling |
doaj-6585c3ce413249eaaec863059220ed2a2021-08-04T13:18:51ZengAIP Publishing LLCAIP Advances2158-32262021-07-01117075109075109-1210.1063/5.0057287A comparative study of hydrostatic pressure treated environmentally friendly perovskites CsXBr3 (X = Ge/Sn) for optoelectronic applicationsM. A. Islam0Md. Zahidur Rahaman1Sapan Kumar Sen2Department of Physics, University of Barishal, Barishal 8200, BangladeshSchool of Materials Science and Engineering, Faculty of Science, University of New South Wales, Sydney 2052, AustraliaInstitute of Electronics, Atomic Energy Research Establishment, Bangladesh Atomic Energy Commission, Dhaka 1349, BangladeshAll-inorganic cubic cesium germanium bromide (CsGeBr3) and cesium tin bromide (CsSnBr3) perovskites have attracted much attention because of their outstanding optoelectronic properties that lead to many modern technological applications. During their evolution process, it can be helpful to decipher the pressure dependence of structural, optical, electronic, and mechanical properties of CsXBr3 (X = Ge/Sn) based on ab initio simulations. The lattice parameter and unit cell volume have been decreased by applying pressure. This study reveals that the absorption peak of CsXBr3 (X = Ge/Sn) perovskites is radically changed toward the lower photon energy region with the applied pressure. In addition, the conductivity, reflectivity, and dielectric constant have an increasing tendency under pressure. The study of electronic properties suggested that CsXBr3 (X = Ge/Sn) perovskites have a direct energy bandgap. It is also found through the study of mechanical properties that CsXBr3 (X = Ge/Sn) perovskites are ductile under ambient conditions and their ductility has been significantly improved with pressure. The analysis of bulk modulus, shear modulus, and Young’s modulus reveals that hardness of CsXBr3 (X = Ge/Sn) perovskites has been enhanced under external pressure. These outcomes suggest that pressure has a significant effect on the physical properties of CsXBr3 (X = Ge/Sn) perovskites that might be promising for photonic applications.http://dx.doi.org/10.1063/5.0057287 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
M. A. Islam Md. Zahidur Rahaman Sapan Kumar Sen |
spellingShingle |
M. A. Islam Md. Zahidur Rahaman Sapan Kumar Sen A comparative study of hydrostatic pressure treated environmentally friendly perovskites CsXBr3 (X = Ge/Sn) for optoelectronic applications AIP Advances |
author_facet |
M. A. Islam Md. Zahidur Rahaman Sapan Kumar Sen |
author_sort |
M. A. Islam |
title |
A comparative study of hydrostatic pressure treated environmentally friendly perovskites CsXBr3 (X = Ge/Sn) for optoelectronic applications |
title_short |
A comparative study of hydrostatic pressure treated environmentally friendly perovskites CsXBr3 (X = Ge/Sn) for optoelectronic applications |
title_full |
A comparative study of hydrostatic pressure treated environmentally friendly perovskites CsXBr3 (X = Ge/Sn) for optoelectronic applications |
title_fullStr |
A comparative study of hydrostatic pressure treated environmentally friendly perovskites CsXBr3 (X = Ge/Sn) for optoelectronic applications |
title_full_unstemmed |
A comparative study of hydrostatic pressure treated environmentally friendly perovskites CsXBr3 (X = Ge/Sn) for optoelectronic applications |
title_sort |
comparative study of hydrostatic pressure treated environmentally friendly perovskites csxbr3 (x = ge/sn) for optoelectronic applications |
publisher |
AIP Publishing LLC |
series |
AIP Advances |
issn |
2158-3226 |
publishDate |
2021-07-01 |
description |
All-inorganic cubic cesium germanium bromide (CsGeBr3) and cesium tin bromide (CsSnBr3) perovskites have attracted much attention because of their outstanding optoelectronic properties that lead to many modern technological applications. During their evolution process, it can be helpful to decipher the pressure dependence of structural, optical, electronic, and mechanical properties of CsXBr3 (X = Ge/Sn) based on ab initio simulations. The lattice parameter and unit cell volume have been decreased by applying pressure. This study reveals that the absorption peak of CsXBr3 (X = Ge/Sn) perovskites is radically changed toward the lower photon energy region with the applied pressure. In addition, the conductivity, reflectivity, and dielectric constant have an increasing tendency under pressure. The study of electronic properties suggested that CsXBr3 (X = Ge/Sn) perovskites have a direct energy bandgap. It is also found through the study of mechanical properties that CsXBr3 (X = Ge/Sn) perovskites are ductile under ambient conditions and their ductility has been significantly improved with pressure. The analysis of bulk modulus, shear modulus, and Young’s modulus reveals that hardness of CsXBr3 (X = Ge/Sn) perovskites has been enhanced under external pressure. These outcomes suggest that pressure has a significant effect on the physical properties of CsXBr3 (X = Ge/Sn) perovskites that might be promising for photonic applications. |
url |
http://dx.doi.org/10.1063/5.0057287 |
work_keys_str_mv |
AT maislam acomparativestudyofhydrostaticpressuretreatedenvironmentallyfriendlyperovskitescsxbr3xgesnforoptoelectronicapplications AT mdzahidurrahaman acomparativestudyofhydrostaticpressuretreatedenvironmentallyfriendlyperovskitescsxbr3xgesnforoptoelectronicapplications AT sapankumarsen acomparativestudyofhydrostaticpressuretreatedenvironmentallyfriendlyperovskitescsxbr3xgesnforoptoelectronicapplications AT maislam comparativestudyofhydrostaticpressuretreatedenvironmentallyfriendlyperovskitescsxbr3xgesnforoptoelectronicapplications AT mdzahidurrahaman comparativestudyofhydrostaticpressuretreatedenvironmentallyfriendlyperovskitescsxbr3xgesnforoptoelectronicapplications AT sapankumarsen comparativestudyofhydrostaticpressuretreatedenvironmentallyfriendlyperovskitescsxbr3xgesnforoptoelectronicapplications |
_version_ |
1721222304847888384 |