Record Details

<p class="BATitle">Optoelectronic properties of all-Inorganic lead-free halide double perovskites <em>(Rb<sub>x</sub>Cs<sub>1-x</sub>)<sub>2</sub>AgBiBr<sub>6</sub></em> for solar cell applications</p>

Online Publishing @ NISCAIR

View Archive Info
 
 
Field Value
 
Authentication Code dc
 
Title Statement <p class="BATitle">Optoelectronic properties of all-Inorganic lead-free halide double perovskites <em>(Rb<sub>x</sub>Cs<sub>1-x</sub>)<sub>2</sub>AgBiBr<sub>6</sub></em> for solar cell applications</p>
 
Added Entry - Uncontrolled Name Radhakrishnan, R ; Department of Theoretical Physics, University of Madras, Chennai-600 025, Tamil Nadu, India
 
Uncontrolled Index Term DFT; Double Perovskites; Halide Doping; Solar cells
 
Summary, etc. <p style="text-align: justify;">Solar cells based on lead-free double perovskites as absorber layer is an environment friendly, stable alternative for the conventional lead based hybrid halide perovskites. A comprehensive theoretical study on the optical and electronic properties of all-inorganic double perovskite with <em>A<sub>2</sub>BB’X<sub>6</sub> </em>stoichiometry<em> </em>is done using density functional theory. Doping studies on (<em>Rb<sub>x</sub>Cs<sub>1-x </sub>)<sub>2</sub>AgBiBr<sub>6 </sub></em>perovskite is done using the virtual crystal approximation method within density functional theory. It is found that as increasing the Rb content (<em>x)</em> from 0.0 to 1.0 in <em>Rb<sub>x</sub>Cs<sub>1-x</sub>AgBiBr<sub>6</sub></em>, the lattice parameter, dielectric constant and band gap are found to be decreasing linearly in accordance with Vegard's law. The lattice constant decreases linearly in <em>x</em> with a function of <em>a(x) = 11.516 - 0.0057 x</em> (Å), while the band gap decreases linearly as a function of <em>x, E<sub>g</sub>(x) = 1.472 - 0.0009 x </em>(eV). Opto-electronic properties of substitutional doping of Rb in (<em>Rb<sub>x</sub>Cs<sub>1-x</sub>)<sub>2</sub>AgBiBr<sub>6</sub></em> is compared with <em>Cs<sub>2</sub>AgBiX<sub>6</sub> (X=Cl, Br, I) </em>and <em>Br</em> doped <em>Cs<sub>2</sub>AgIn(Br<sub>x</sub>Cl<sub>1-x</sub>)<sub>6</sub></em>.</p>
 
Publication, Distribution, Etc. Indian Journal of Chemistry -Section A (IJCA)
2020-10-06 15:05:21
 
Electronic Location and Access application/pdf
http://op.niscair.res.in/index.php/IJCA/article/view/41268
 
Data Source Entry Indian Journal of Chemistry -Section A (IJCA); ##issue.vol## 59, ##issue.no## 9 (2020): INDIAN JOURNAL OF CHEMISTRY - SECTION A
 
Language Note en
 
Terms Governing Use and Reproduction Note Except where otherwise noted, the Articles on this site are licensed under Creative Commons License: CC Attribution-Noncommercial-No Derivative Works 2.5 India© 2015. The Council of Scientific &amp; Industrial Research, New Delhi.