scholarly journals Kinetic modelling of intraband carrier relaxation in bulk and nanocrystalline lead-halide perovskites

2020 ◽  
Vol 22 (31) ◽  
pp. 17605-17611
Author(s):  
Thomas R. Hopper ◽  
Ahhyun Jeong ◽  
Andrei A. Gorodetsky ◽  
Franziska Krieg ◽  
Maryna I. Bodnarchuk ◽  
...  
Keyword(s):  
Kinetic Modelling ◽  
Relaxation Model ◽  
Optical Phonons ◽  
Hot Carriers ◽  
Carrier Relaxation ◽  
Perovskite Materials ◽  
Halide Perovskites ◽  
Halide Perovskite ◽  
Lead Halide

Our carrier relaxation model accounts for the redistribution of energy from hot carriers to both optical phonons and cold carriers in lead-halide perovskite materials.

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 Perovskite solar cells have achieved a record efficiency of over 20%, which has superseded the efficiency of Gräztel dye-sensitized solar cell (DSSC) technology.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.

scholarly journals Optimizing the quasi-equilibrium state of hot carriers in all-inorganic lead halide perovskite nanocrystals through Mn doping: fundamental dynamics and device perspectives

2022 ◽  
Author(s):  
Jie Meng ◽  
Zhenyun Lan ◽  
Weihua Lin ◽  
Mingli Liang ◽  
Xianshao Zou ◽  
...  
Keyword(s):  
Energy Loss ◽  
Equilibrium State ◽  
Quasi Equilibrium ◽  
Relaxation Dynamics ◽  
Hot Carriers ◽  
Hot Carrier ◽  
Halide Perovskites ◽  
Halide Perovskite ◽  
Mn Doped ◽  
Lead Halide

Hot carrier (HC) cooling accounts for the significant energy loss in lead halide perovskites (LHPs) solar cells. Here, we study HC relaxation dynamics in Mn-doped LHP CsPbI3 nanocrystals (NCs), combining...

scholarly journals Solid-State NMR and NQR Spectroscopy of Lead-Halide Perovskite Materials

2020 ◽  
Vol 142 (46) ◽  
pp. 19413-19437
Author(s):  
Laura Piveteau ◽  
Viktoriia Morad ◽  
Maksym V. Kovalenko
Keyword(s):  
Solid State ◽  
Solid State Nmr ◽  
Perovskite Materials ◽  
Halide Perovskite ◽  
Lead Halide

scholarly journals Unraveling the Radiative Pathways of Hot Carriers upon Intense Photoexcitation of Lead Halide Perovskite Nanocrystals

ACS Nano ◽  
2019 ◽  
Vol 13 (5) ◽  
pp. 5799-5809 ◽  
Author(s):  
Paris Papagiorgis ◽  
Andreas Manoli ◽  
Sozos Michael ◽  
Caterina Bernasconi ◽  
Maryna I. Bodnarchuk ◽  
...  
Keyword(s):  
Hot Carriers ◽  
Perovskite Nanocrystals ◽  
Halide Perovskite ◽  
Lead Halide

scholarly journals Comment on “ferroelectricity-free lead halide perovskites” by A. Gómez, Q. Wang, A. R. Goñi, M. Campoy-Quiles and A. Abate, Energy Environ. Sci., 2019, 12, 2537

2020 ◽  
Vol 13 (6) ◽  
pp. 1888-1891
Author(s):  
Alexander Colsmann ◽  
Tobias Leonhard ◽  
Alexander D. Schulz ◽  
Holger Röhm
Keyword(s):  
Thin Films ◽  
Metal Halide ◽  
Organic Metal ◽  
Metal Halide Perovskite ◽  
Halide Perovskites ◽  
Halide Perovskite ◽  
Lead Halide ◽  
Energy Environ

This comment analyzes pitfalls when investigating piezoresponse and ferroelectricity in organic-metal halide perovskite thin films.

scholarly journals Photon Energy-Dependent Hysteresis Effects in Lead Halide Perovskite Materials

2017 ◽  
Vol 121 (47) ◽  
pp. 26180-26187 ◽  
Author(s):  
Meysam Pazoki ◽  
T. Jesper Jacobsson ◽  
Silver H. T. Cruz ◽  
Malin B. Johansson ◽  
Roghayeh Imani ◽  
...  
Keyword(s):  
Photon Energy ◽  
Perovskite Materials ◽  
Halide Perovskite ◽  
Energy Dependent ◽  
Lead Halide

scholarly journals It's a trap! On the nature of localised states and charge trapping in lead halide perovskites

2020 ◽  
Vol 7 (2) ◽  
pp. 397-410 ◽  
Author(s):  
Handong Jin ◽  
Elke Debroye ◽  
Masoumeh Keshavarz ◽  
Ivan G. Scheblykin ◽  
Maarten B. J. Roeffaers ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Materials Science ◽  
Optoelectronic Devices ◽  
Charge Trapping ◽  
Scientific Interest ◽  
Halide Perovskites ◽  
Localised States ◽  
Halide Perovskite ◽  
Lead Halide

The recent surge of scientific interest for lead halide perovskite semiconductors and optoelectronic devices has seen a mix of materials science sub-fields converge on the same “magical” crystal structure.

scholarly journals Indirect to direct bandgap transition in methylammonium lead halide perovskite

2017 ◽  
Vol 10 (2) ◽  
pp. 509-515 ◽  
Author(s):  
Tianyi Wang ◽  
Benjamin Daiber ◽  
Jarvist M. Frost ◽  
Sander A. Mann ◽  
Erik C. Garnett ◽  
...  
Keyword(s):  
High Pressure ◽  
Charge Carrier ◽  
Carrier Lifetime ◽  
Direct Bandgap ◽  
Radiative Efficiency ◽  
Halide Perovskites ◽  
Halide Perovskite ◽  
Charge Carrier Lifetime ◽  
Lead Halide

Unusually long charge carrier lifetime in methylammonium lead halide perovskites is a result of the Rashba-split indirect bandgap. At high pressure the bandgap becomes purely direct, with shorter carrier lifetime and higher radiative efficiency.

scholarly journals Interaction of light with lead halide perovskites: A review

2019 ◽  
Vol 2 (2) ◽  
pp. 67
Author(s):  
Zhiya Dang ◽  
Duc Anh Dinh
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Light Illumination ◽  
Low Light ◽  
Practical Applications ◽  
Halide Perovskites ◽  
Halide Perovskite ◽  
First Time ◽  
Lead Halide ◽  
Sample Environment

Lead halide perovskites are the new rising generation of semiconductor materials due to their unique optical and electrical properties. The investigation of the interaction of halide perovskites and light is a key issue not only for understanding their photophysics but also for practical applications. Hence, tremendous efforts have been devoted to this topic and brunch into two: (i) decomposition of the halide perovskites thin films under light illumination; and (ii) influence of light soaking on their photoluminescence (PL) properties. In this review, we for the first time thoroughly compare the illumination conditions and the sample environment to correlate the PL changes and decomposition of perovskite under light illumination. In the case of vacuum and dry nitrogen, PL of the halide perovskite (MAPbI3–xClx, MAPbBr3–xClx, MAPbI3) thin films decreases due to the defects induced by light illumination, and under high excitations, the thin film even decomposes. In the presence of oxygen or moisture, light induces the PL enhancement of halide perovskite (MAPbI3) thin films at low light illumination, while increasing the excitation, which causes the PL to quench and perovskite thin film to decompose. In the case of mixed halide perovskite ((MA)Pb(BrxI1-x)3) light induces reversible segregation of Br domains and I domains. 

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