scholarly journals Enhanced light emission in composite halide perovskites

2017 ◽  
Author(s):  
Hanwei Gao
Keyword(s):  
Light Emission ◽  
Halide Perovskites

The role of excitons in 3D and 2D lead halide perovskites

2019 ◽  
Vol 7 (39) ◽  
pp. 12006-12018 ◽  
Author(s):  
Daniela Marongiu ◽  
Michele Saba ◽  
Francesco Quochi ◽  
Andrea Mura ◽  
Giovanni Bongiovanni
Keyword(s):  
Light Emission ◽  
Minority Species ◽  
Halide Perovskites ◽  
Almost All ◽  
Lead Halide

Excitons in lead halide perovskites often go unnoticed as minority species, yet they account for almost all of light emission.

Broadband white-light emission from supramolecular piperazinium-based lead halide perovskites linked by hydrogen bonds

2019 ◽  
Vol 48 (40) ◽  
pp. 15074-15090 ◽  
Author(s):  
Mi-Hee Jung ◽  
Kyoung Chul Ko ◽  
Woo Ram Lee
Keyword(s):  
Hydrogen Bonds ◽  
White Light ◽  
Light Emission ◽  
White Light Emission ◽  
Halide Perovskites ◽  
Lead Halide

We demonstrate white-light emission using the piperazine-based perovskites, (pip)2PbBr6, (pip)2Pb4Cl12, (1mpz)2PbBr6, and (2,5-dmpz)0.5PbBr3, in which the inorganic frameworks were connected by piperazinium dications through hydrogen bonds.

Enhanced Light Emission through Symmetry Engineering of Halide Perovskites

2021 ◽  
Author(s):  
Yoonhoo Ha ◽  
Jong-Goo Park ◽  
Ki-Ha Hong ◽  
Hyungjun Kim
Keyword(s):  
Light Emission ◽  
Halide Perovskites

scholarly journals Giant Light-Emission Enhancement in Lead Halide Perovskites by Surface Oxygen Passivation

Nano Letters ◽  
2018 ◽  
Vol 18 (11) ◽  
pp. 6967-6973 ◽  
Author(s):  
Dylan Lu ◽  
Ye Zhang ◽  
Minliang Lai ◽  
Alex Lee ◽  
Chenlu Xie ◽  
...  
Keyword(s):  
Light Emission ◽  
Surface Oxygen ◽  
Emission Enhancement ◽  
Halide Perovskites ◽  
Lead Halide

scholarly journals Tailoring the Energy Landscape in Quasi-2D Halide Perovskites Enables Efficient Green-Light Emission

Nano Letters ◽  
2017 ◽  
Vol 17 (6) ◽  
pp. 3701-3709 ◽  
Author(s):  
Li Na Quan ◽  
Yongbiao Zhao ◽  
F. Pelayo García de Arquer ◽  
Randy Sabatini ◽  
Grant Walters ◽  
...  
Keyword(s):  
Light Emission ◽  
Energy Landscape ◽  
Green Light ◽  
Green Light Emission ◽  
Halide Perovskites

Strongly Coupled Tin-Halide Perovskites to Modulate Light Emission: Tunable 550-640 nm Light Emission (FWHM 36-80 nm) with a Quantum Yield of up to 6.4%

2018 ◽  
Vol 30 (20) ◽  
pp. 1706592 ◽  
Author(s):  
Min-Yi Chen ◽  
Jin-Tai Lin ◽  
Chia-Shuo Hsu ◽  
Chung-Kai Chang ◽  
Ching-Wen Chiu ◽  
...  
Keyword(s):  
Quantum Yield ◽  
Light Emission ◽  
Strongly Coupled ◽  
Halide Perovskites

The Diversity of Layered Halide Perovskites

2018 ◽  
Vol 48 (1) ◽  
pp. 111-136 ◽  
Author(s):  
Matthew D. Smith ◽  
Ethan J. Crace ◽  
Adam Jaffe ◽  
Hemamala I. Karunadasa
Keyword(s):  
Organic Molecules ◽  
Light Emission ◽  
Large Range ◽  
Three Dimensional ◽  
Two Dimensional ◽  
Comprehensive Review ◽  
Extended Solids ◽  
Single Well ◽  
Halide Perovskites ◽  
Inorganic Components

The two-dimensional congeners of the well-known three-dimensional perovskites display new properties enabled by their reduced dimensionality. Here, organic molecules separate inorganic sheets, affording the properties of both discrete molecules and extended solids in single, well-defined materials. The choice of organic and inorganic components engenders a large range of structural motifs, which yield diverse properties such as electroluminescence, white-light emission, photoconductivity, porosity, and reactivity. Layered halide perovskites have been known for decades. Their recent resurgence compels us to understand the fundamental studies that set the stage for their current technological relevance. We are not providing a comprehensive review of this vast and rapidly growing field. Instead, we highlight some of the discoveries that have directed current research in this field. We hope to introduce new researchers to layered halide perovskites to bring fresh perspectives to study this venerable family of materials that continue to surprise us today.

scholarly journals Drastic transitions of excited state and coupling regime in all-inorganic perovskite microcavities characterized by exciton/plasmon hybrid natures

2022 ◽  
Vol 11 (1) ◽  
Author(s):  
Shuki Enomoto ◽  
Tomoya Tagami ◽  
Yusuke Ueda ◽  
Yuta Moriyama ◽  
Kentaro Fujiwara ◽  
...  
Keyword(s):  
Excited State ◽  
Strong Coupling ◽  
Light Emission ◽  
Excitation Density ◽  
Strong Coupling Regime ◽  
Material System ◽  
Inorganic Perovskite ◽  
Correlated Electron ◽  
Halide Perovskites ◽  
Laser Devices

AbstractLead-halide perovskites are highly promising for various optoelectronic applications, including laser devices. However, fundamental photophysics explaining the coherent-light emission from this material system is so intricate and often the subject of debate. Here, we systematically investigate photoluminescence properties of all-inorganic perovskite microcavity at room temperature and discuss the excited state and the light–matter coupling regime depending on excitation density. Angle-resolved photoluminescence clearly exhibits that the microcavity system shows a transition from weak coupling regime to strong coupling regime, revealing the increase in correlated electron–hole pairs. With pumping fluence above the threshold, the photoluminescence signal shows a lasing behavior with bosonic condensation characteristics, accompanied by long-range phase coherence. The excitation density required for the lasing behavior, however, is found to exceed the Mott density, excluding the exciton as the excited state. These results demonstrate that the polaritonic Bardeen–Cooper–Schrieffer state originates the strong coupling formation and the lasing behavior.

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