Optoelectronic properties of two-dimensional hybrid metal halide perovskites

2020 ◽  
Author(s):  
Rebecca L. Milot
Keyword(s):  
Optoelectronic Properties ◽  
Metal Halide ◽  
Two Dimensional ◽  
Halide Perovskites

Two-Dimensional Metal Halide Perovskites: Theory, Synthesis, and Optoelectronics

Small Methods ◽  
2017 ◽  
Vol 1 (3) ◽  
pp. 1600018 ◽  
Author(s):  
Chengxue Huo ◽  
Bo Cai ◽  
Zhao Yuan ◽  
Biwu Ma ◽  
Haibo Zeng
Keyword(s):  
Metal Halide ◽  
Two Dimensional ◽  
Halide Perovskites

Hierarchical computational screening of layered lead-free metal halide perovskites for optoelectronic applications

2021 ◽  
Author(s):  
Qiuqi Li ◽  
Dan Cao ◽  
Xueyin Liu ◽  
Xiangyu Zhou ◽  
Xiaoshuang Chen ◽  
...  
Keyword(s):  
High Stability ◽  
Screening Method ◽  
Optoelectronic Properties ◽  
Metal Halide ◽  
Lead Free ◽  
Computational Screening ◽  
Halide Perovskites ◽  
Optoelectronic Applications ◽  
Free Metal

A hierarchical computational screening method is used to find layered lead-free metal halide perovskites with high stability and outstanding optoelectronic properties.

scholarly journals Enhanced screening and spectral diversity in many-body elastic scattering of excitons in two-dimensional hybrid metal-halide perovskites

2019 ◽  
Vol 1 (3) ◽  
Author(s):  
Félix Thouin ◽  
Daniele Cortecchia ◽  
Annamaria Petrozza ◽  
Ajay Ram Srimath Kandada ◽  
Carlos Silva
Keyword(s):  
Elastic Scattering ◽  
Metal Halide ◽  
Two Dimensional ◽  
Many Body ◽  
Halide Perovskites

Colossal Barocaloric Effects with Ultralow Hysteresis in Two-Dimensional Metal–Halide Perovskites

2021 ◽  
Author(s):  
Jarad Mason ◽  
Jinyoung Seo ◽  
Ryan McGillicuddy ◽  
Adam Slavney ◽  
Selena Zhang ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Phase Transitions ◽  
Solid State ◽  
Hydrostatic Pressure ◽  
Metal Halide ◽  
Two Dimensional ◽  
Vapor Compression ◽  
Entropy Changes ◽  
Halide Perovskites ◽  
Solid State Cooling

Abstract Nearly 4,400 TWh of electricity—20% of the total consumed in the world—is used each year by refrigerators, air conditioners, and heat pumps for cooling. In addition to the 2.3 Gt of carbon dioxide emitted during the generation of this electricity, the vapor-compression-based devices that provided the bulk of this cooling emitted fluorocarbon refrigerants with a global warming potential equivalent to 1.5 Gt of carbon dioxide into the atmosphere. With population and economic growth expected to dramatically increase over the next several decades, the development of alternative cooling technologies with improved efficiency and reduced emissions will be critical to meeting global cooling needs in a more sustainable fashion. Barocaloric materials, which undergo thermal changes in response to applied hydrostatic pressure, offer the potential for solid-state cooling with high energy efficiency and zero direct emissions, as well as faster start-up times, quieter operation, greater amenability to miniaturization, and better recyclability than conventional vapor-compression systems. Efficient barocaloric cooling requires materials that undergo reversible phase transitions with large entropy changes, high sensitivity to hydrostatic pressure, and minimal hysteresis, the combination of which has been challenging to achieve in existing barocaloric materials. Here, we report a new mechanism for achieving colossal barocaloric effects near ambient temperature that exploits the large volume and conformational entropy changes of hydrocarbon chain-melting transitions within two-dimensional metal–halide perovskites. Significantly, we show how the confined nature of these order–disorder phase transitions and the synthetic tunability of layered perovskites can be leveraged to reduce phase transition hysteresis through careful control over the inorganic–organic interface. The combination of ultralow hysteresis (< 1.5 K) and high barocaloric coefficients (> 20 K/kbar) leads to large reversible isothermal entropy changes (> 200 J/kg•K) at record-low pressures (< 300 bar). We anticipate that these results will help facilitate the development of barocaloric cooling technologies and further inspire new materials and mechanisms for efficient solid-state cooling.

Two‐Dimensional Halide Perovskites: Approaches to Improve Optoelectronic Properties

2021 ◽  
Author(s):  
Avija Ajayakumar ◽  
Chinnadurai Muthu ◽  
Amarjith V. Dev ◽  
Johnpaul K. Pious ◽  
Chakkooth Vijayakumar
Keyword(s):  
Optoelectronic Properties ◽  
Two Dimensional ◽  
Halide Perovskites

Interlayer Triplet-Sensitized Luminescence in Layered Two-Dimensional Hybrid Metal-Halide Perovskites

2021 ◽  
pp. 4079-4096
Author(s):  
YunHui L. Lin ◽  
Jeffrey L. Blackburn ◽  
Matthew C. Beard ◽  
Justin C. Johnson
Keyword(s):  
Metal Halide ◽  
Two Dimensional ◽  
Sensitized Luminescence ◽  
Halide Perovskites

scholarly journals The Impact of Phase Retention on the Structural and Optoelectronic Properties of Metal Halide Perovskites

2016 ◽  
Vol 28 (48) ◽  
pp. 10757-10763 ◽  
Author(s):  
Anna Osherov ◽  
Eline M. Hutter ◽  
Krzysztof Galkowski ◽  
Roberto Brenes ◽  
Duncan K. Maude ◽  
...  
Keyword(s):  
Optoelectronic Properties ◽  
Metal Halide ◽  
Halide Perovskites ◽  
Phase Retention ◽  
The Impact ◽  
Structural And Optoelectronic Properties

Layer-controlled two-dimensional perovskites: synthesis and optoelectronics

2017 ◽  
Vol 5 (23) ◽  
pp. 5610-5627 ◽  
Author(s):  
Jakub Jagielski ◽  
Sudhir Kumar ◽  
Wen-Yueh Yu ◽  
Chih-Jen Shih
Keyword(s):  
Low Cost ◽  
Metal Halide ◽  
Two Dimensional ◽  
Solution Processed ◽  
Halide Perovskites

Solution-processed layered-controlled 2D metal halide perovskites are emerging as one of the most promising candidates for low-cost photovoltaics and optoelectronics.

scholarly journals Intriguing Optoelectronic Properties of Metal Halide Perovskites

2016 ◽  
Vol 116 (21) ◽  
pp. 12956-13008 ◽  
Author(s):  
Joseph S. Manser ◽  
Jeffrey A. Christians ◽  
Prashant V. Kamat
Keyword(s):  
Optoelectronic Properties ◽  
Metal Halide ◽  
Halide Perovskites
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