Probing the Emissive Behaviour of Lead-free Cs2AgBiCl6 Double Perovskite with Cu (II) Doping

2021 ◽  
Author(s):  
Sukanya Ghosh ◽  
Gaurav Kumar Nim ◽  
Hari Shankar ◽  
Prasenjit Kar
Keyword(s):  
Optical Properties ◽  
Double Perovskite ◽  
Lead Free ◽  
Perovskite Materials ◽  
Tremendous Importance ◽  
Synthesis Procedure ◽  
Lead Halide ◽  
Poor Stability

In last few years, lead halide based perovskite materials have gained tremendous importance due to excellent optical properties and easy synthesis procedure. But poor stability in presence of heat, moisture,...

The synthesis of lead-free double perovskite Cs2Ag0.4Na0.6InCl6 phosphor with improved optical properties via ion doping

2022 ◽  
Vol 891 ◽  
pp. 161978
Author(s):  
Kangliang Peng ◽  
Lixin Yu ◽  
Xiao Min ◽  
Mengzhu Hu ◽  
Yaoyao Yang ◽  
...  
Keyword(s):  
Optical Properties ◽  
Double Perovskite ◽  
Lead Free ◽  
Ion Doping

scholarly journals Lead-Free Halide Double Perovskites: A Review of the Structural, Optical, and Stability Properties as Well as Their Viability to Replace Lead Halide Perovskites

Metals ◽  
2018 ◽  
Vol 8 (9) ◽  
pp. 667 ◽  
Author(s):  
Edson Meyer ◽  
Dorcas Mutukwa ◽  
Nyengerai Zingwe ◽  
Raymond Taziwa
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Lead Free ◽  
Double Perovskites ◽  
Stability Properties ◽  
Perovskite Materials ◽  
Halide Perovskites ◽  
Halide Perovskite ◽  
Light Absorbers ◽  
Lead Halide

Perovskite solar cells employ lead halide perovskite materials as light absorbers. These perovskite materials have shown exceptional optoelectronic properties, making perovskite solar cells a fast-growing solar technology. Perovskite solar cells have achieved a record efficiency of over 20%, which has superseded the efficiency of Gräztel dye-sensitized solar cell (DSSC) technology. Even with their exceptional optical and electric properties, lead halide perovskites suffer from poor stability. They degrade when exposed to moisture, heat, and UV radiation, which has hindered their commercialization. Moreover, halide perovskite materials consist of lead, which is toxic. Thus, exposure to these materials leads to detrimental effects on human health. Halide double perovskites with A2B′B″X6 (A = Cs, MA; B′ = Bi, Sb; B″ = Cu, Ag, and X = Cl, Br, I) have been investigated as potential replacements of lead halide perovskites. This work focuses on providing a detailed review of the structural, optical, and stability properties of these proposed perovskites as well as their viability to replace lead halide perovskites. The triumphs and challenges of the proposed lead-free A2B′B″X6 double perovskites are discussed here in detail.

Improving Lead‐Free Double Perovskite Cs 2 NaBiCl 6 Nanocrystal Optical Properties via Ion Doping

2020 ◽  
Vol 8 (8) ◽  
pp. 1901919 ◽  
Author(s):  
Ming‐Ming Yao ◽  
Li Wang ◽  
Ji‐Song Yao ◽  
Kun‐Hua Wang ◽  
Chen Chen ◽  
...  
Keyword(s):  
Optical Properties ◽  
Double Perovskite ◽  
Lead Free ◽  
Ion Doping

scholarly journals Photoluminescence Characteristics of Sn2+ and Ce3+-Doped Cs2SnCl6 Double-Perovskite Crystals

Materials ◽  
2019 ◽  
Vol 12 (9) ◽  
pp. 1501 ◽  
Author(s):  
Hongdan Zhang ◽  
Ludan Zhu ◽  
Jun Cheng ◽  
Long Chen ◽  
Chuanqi Liu ◽  
...  
Keyword(s):  
Decay Curve ◽  
Double Perovskite ◽  
Fluorescence Decay ◽  
Precipitation Method ◽  
Phase Precipitation ◽  
Fluorescence Decay Curve ◽  
Low Toxicity ◽  
Halide Perovskites ◽  
Lead Halide ◽  
Poor Stability

In recent years, all-inorganic lead-halide perovskites have received extensive attention due to their many advantages, but their poor stability and high toxicity are two major problems. In this paper, a low toxicity and stable Cs2SnCl6 double perovskite crystals were prepared by aqueous phase precipitation method using SnCl2 as precursor. By the XRD, ICP-AES, XPS, photoluminescence and absorption spectra, the fluorescence decay curve, the structure and photoluminescence characteristics of Ce3+-doped and undoped samples have been investigated in detail. The results show that the photoluminescence originates from defects. [ S n S n 4 + 2 + +VCl] defect complex in the crystal is formed by Sn2+ substituting Sn4+. The number of defects formed by Sn2+ in the crystal decreases with Ce3+ content increases. Within a certain number of defects, the crystal luminescence is enhanced with the number of [ S n S n 4 + 2 + +VCl] decreased. When Ce3+ is incorporated into the crystals, the defects of [ C e 3 + S n 4 + +VCl] and [ S n S n 4 + 2 + +VCl] were formed and the crystal show the strongest emission. This provides a route to enhance the photoluminescence of Cs2SnCl6 double perovskite crystals.

scholarly journals Cs2NaGaBr6: a new lead-free and direct band gap halide double perovskite

RSC Advances ◽  
2020 ◽  
Vol 10 (30) ◽  
pp. 17444-17451 ◽  
Author(s):  
Yasir Saeed ◽  
Bin Amin ◽  
Haleema Khalil ◽  
Fida Rehman ◽  
Hazrat Ali ◽  
...  
Keyword(s):  
Band Gap ◽  
Double Perovskite ◽  
Lead Free ◽  
Direct Band Gap ◽  
Perovskite Materials ◽  
Direct Band

In this work, we have studied new double perovskite materials, A21+B2+B3+X61−, where A21+ = Cs, B2+ = Li, Na, B3+ = Al, Ga, In, and X61−.

Investigation on lead-free Mn-doped Cs2NaInCl6 double perovskite phosphors and their optical properties

2021 ◽  
pp. 111802
Author(s):  
Leilei Zhang ◽  
Xiaoyu Xie ◽  
Dongliang Li ◽  
Yongfang Yuan ◽  
Xiaogang Xue ◽  
...  
Keyword(s):  
Optical Properties ◽  
Double Perovskite ◽  
Lead Free ◽  
Mn Doped

scholarly journals Mechanochemical synthesis of the lead-free double perovskite Cs2[AgIn]Br6 and its optical properties

2019 ◽  
Vol 1 (2) ◽  
pp. 025003 ◽  
Author(s):  
Joachim Breternitz ◽  
Sergiu Levcenko ◽  
Hannes Hempel ◽  
Galina Gurieva ◽  
Alexandra Franz ◽  
...  
Keyword(s):  
Optical Properties ◽  
Mechanochemical Synthesis ◽  
Double Perovskite ◽  
Lead Free

scholarly journals Evolutions of structural and optical properties of lead-free double perovskite Cs2TeCl6 under high pressure

2020 ◽  
Vol 69 (21) ◽  
pp. 218801 ◽  
Author(s):  
Pan-Pan Yao ◽  
Ling-Rui Wang ◽  
Jia-Xiang Wang ◽  
Hai-Zhong Guo
Keyword(s):  
High Pressure ◽  
Optical Properties ◽  
Double Perovskite ◽  
Lead Free ◽  
Structural And Optical Properties
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