Thickness-induced band-gap engineering in lead-free double perovskite Cs2AgBiBr6for highly efficient photocatalysis

2021 ◽  
Author(s):  
Bing-Hao Wang ◽  
Bin Gao ◽  
Jin-Rong Zhang ◽  
Lang Chen ◽  
Guo Jun-Kang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
Double Perovskite ◽  
Lead Free ◽  
Double Perovskites ◽  
Two Dimensional ◽  
Band Gap Engineering ◽  
Highly Efficient ◽  
Photovoltaic Solar Cells

In recent years, two-dimensional (2D) lead-free double perovskites have been attracting much attention because of their unique performance for photovoltaic solar cells andphotocatalysis. Nonetheless, how the thickness affects the photoelectric...

Cs2AgBiBr6−xClx solid solutions – band gap engineering with halide double perovskites

2019 ◽  
Vol 7 (31) ◽  
pp. 9686-9689 ◽  
Author(s):  
Matthew B. Gray ◽  
Eric T. McClure ◽  
Patrick M. Woodward
Keyword(s):  
Solid Solution ◽  
Band Gap ◽  
Solid Solutions ◽  
Double Perovskite ◽  
Double Perovskites ◽  
Band Gap Engineering ◽  
Vegard’S Law ◽  
Upward Deviation

The halide double perovskite solid solution Cs2AgBiBr6−xClx has been investigated and found to exhibit a band gap that increases from 2.2 eV to 2.8 eV as the Cl− content increases, with an upward deviation from Vegard's law when x > 5.

High-Pressure Band-Gap Engineering in Lead-Free Cs2 AgBiBr6 Double Perovskite

2017 ◽  
Vol 56 (50) ◽  
pp. 15969-15973 ◽  
Author(s):  
Qian Li ◽  
Yonggang Wang ◽  
Weicheng Pan ◽  
Wenge Yang ◽  
Bo Zou ◽  
...  
Keyword(s):  
High Pressure ◽  
Band Gap ◽  
Double Perovskite ◽  
Lead Free ◽  
Band Gap Engineering

High-Pressure Band-Gap Engineering in Lead-Free Cs2 AgBiBr6 Double Perovskite

2017 ◽  
Vol 129 (50) ◽  
pp. 16185-16189 ◽  
Author(s):  
Qian Li ◽  
Yonggang Wang ◽  
Weicheng Pan ◽  
Wenge Yang ◽  
Bo Zou ◽  
...  
Keyword(s):  
High Pressure ◽  
Band Gap ◽  
Double Perovskite ◽  
Lead Free ◽  
Band Gap Engineering

Mixed Halide Lead-free Double Perovskite Alloys for Band Gap Engineering

2020 ◽  
Vol 3 (8) ◽  
pp. 7364-7371
Author(s):  
Julian F. R. V. Silveira ◽  
Juarez L. F. Da Silva
Keyword(s):  
Band Gap ◽  
Double Perovskite ◽  
Lead Free ◽  
Band Gap Engineering

All-inorganic tin-doped Cs2BiAgCl6 double perovskite with stable blue photoluminescence for WLEDs

2021 ◽  
Author(s):  
Dayu Huang ◽  
Hui Xiao ◽  
Dongjie Liu ◽  
Qiuyun Ouyang ◽  
Youchao Kong ◽  
...  
Keyword(s):  
Band Gap ◽  
Double Perovskite ◽  
Lead Free ◽  
Double Perovskites ◽  
Variable Band Gap ◽  
Blue Photoluminescence

Lead free double perovskites have recently received increasing attention due to variable band gap. Herein, tin has been doped into Cs2BiAgCl6 successfully. The doping of Sn2+ cations can make the...

Lead-free Layered Dion-Jacobson Hybrid Double Perovskite Constructed by Aromatic Diammonium Cation

2021 ◽  
Author(s):  
Dongying Fu ◽  
Shichao Wu ◽  
Yanyun Liu ◽  
Yunpeng Yao ◽  
Yueyue He ◽  
...  
Keyword(s):  
Band Gap ◽  
Double Perovskite ◽  
Lead Free ◽  
Two Dimensional

A two-dimensional (2D) Dion-Jacobson (DJ) lead-free semiconductive hybrid double perovskite (HDP) [(3AMPY)2AgBiI8·H2O] (3AMPY=3-(aminomethyl) pyridinium) (1) has been reported, which shows an attractive band gap of 1.86 eV. Importantly, 1 is...

Precursor engineering for high-quality Cs2AgBiBr6 films toward efficient lead-free double perovskite solar cells

2021 ◽  
Author(s):  
Ping Hou ◽  
Wenxiang Yang ◽  
Ning Wan ◽  
Zhi Fang ◽  
Jinju Zheng ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Control Sample ◽  
Double Perovskite ◽  
Lead Free ◽  
High Quality ◽  
Precursor Engineering ◽  
First Time

We report a facile BiBr3(DMSO)2 adduct process to produce high-quality Cs2AgBiBr6 films with large grains for the first time, which leads to an enhancement of over 40% on the PCE of Cs2AgBiBr6-based solar cells compared to that of the control sample.

First-principles study of lead-free double perovskites Rb2TeX6 (X = Cl, Br, and I) for solar cells and renewable energy

2021 ◽  
Vol 266 ◽  
pp. 115064
Author(s):  
Q. Mahmood ◽  
M.H. Alhossainy ◽  
M.S. Rashid ◽  
Tahani H. Flemban ◽  
Hind Althib ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Solar Cells ◽  
First Principles ◽  
Lead Free ◽  
Double Perovskites ◽  
First Principles Study
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