Guidelines for the characterization of metal halide nanocrystals

Trizio, Luca De; Infante, Ivan; Abdelhady, Ahmed L.; Brovelli, Sergio; Manna, Liberato

doi:10.1016/j.trechm.2021.05.001

Cited by 18 publications

(24 citation statements)

References 104 publications

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“…The PL QY uncertainty reported here (2%) reflects the relative standard deviation observed in our experiments rather than the inherent uncertainty of such measurements including instrument calibrations, which is approximately 5%. 35,36…”

Section: Spectroscopic Properties Of Can(b)ic Perovskitesmentioning

confidence: 99%

“Green” synthesis of highly luminescent lead-free Cs₂Ag_xNa_1−xBi_yIn_1−yCl₆ perovskites

et al. 2022

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Section: Spectroscopic Properties Of Can(b)ic Perovskitesmentioning

confidence: 99%

“Green” synthesis of highly luminescent lead-free Cs₂Ag_xNa_1−xBi_yIn_1−yCl₆ perovskites

et al. 2022

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“…On the heels of 3D bulk metal-halide perovskites, solution-processed nanocrystal analogues (MHP nanocrystals) have made a similarly explosive entrance to the field of nanotechnology for conventional and quantum optoelectronics within the last decade. The volume of research activity on MHP nanocrystals prompts us to defer to numerous reviews, all published since 2019, that detail the current states of MHP nanocrystal synthesis, 491,492 characterization, 493 stability, [494][495][496][497] doping, 498 heterostructures, 499 selfassembly, 500 encapsulation, 501 device applications, [502][503][504][505][506][507] and more, [508][509][510][511][512] with a particularly comprehensive review of the MHP nanocrystal state-of-the-art published in 2021. 513 Here, we aim to present the major considerations for achieving bright, efficient, and narrow emission from nanoscale ABX3 structure synthesized in solution.…”

Section: -Perovskite Nanocrystalsmentioning

confidence: 99%

Design rules for obtaining narrow luminescence from semiconductors made in solution

Nguyen

Dixon

Dou

et al. 2023

Preprint

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Solution processed semiconductors are in demand for present and next-generation optoelectronic technologies ranging from displays to quantum light sources because of their scalability and ease of integration into devices with diverse form factors. One of the central requirements of semiconductors used in all these applications is a narrow photoluminescence (PL) linewidth. Narrow emission linewidths are needed to ensure both color and single-photon purity, raising the question of what design rules are needed to obtain narrow emission from semiconductors made in solution. In this review we first examine the requirements for colloidal emitters for a variety of applications including light-emitting diodes, photodetectors, lasers, and quantum information science. Next, we will delve into the sources of spectral broadening, including homogeneous broadening from dynamical broadening mechanisms in single-particle spectra, heterogeneous broadening from static structural differences in ensemble spectra, and spectral diffusion. Then, we compare the current state of the art in terms of emission linewidth for a variety of colloidal materials including II-VI quantum dots (QDs) and nanoplatelets, III-V QDs, alloyed QDs, metal-halide perovskites including nanocrystals and 2D structures, doped nanocrystals, and, finally, as a point of comparison, organic molecules. We end with some conclusions and connections, with an outline of promising paths forward.

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Section: Introductionmentioning

confidence: 99%

“…Lead halide perovskite (LHP) nanocrystals (NCs) have recently emerged as a promising class of energy materials with intriguing optical and optoelectronic properties, including high defect tolerance, near-unity photoluminescence quantum yield (PLQY), high color purity, and facile bandgap tunability. [1][2][3][4][5][6] Due to these unique properties, LHP NCs have demonstrated outstanding performance in energy technologies and devices, including solar cells, [7][8][9] luminescence solar concentrators, [10,11] light-emitting diodes (LEDs), [12,13] and photodetectors. [14,15] Metal cation doping of LHP NCs with transition-metal ions (e.g., copper, manganese [Mn], zinc, nickel)-through partial replacement of lead (Pb 2þ ) ions-can introduce new functionalities and enable tuning of optical, electronic, and/or magnetic properties of the host NCs.…”

Section: Introductionmentioning

confidence: 99%

Autonomous Nanocrystal Doping by Self‐Driving Fluidic Micro‐Processors

Bateni

Epps

Antami

et al. 2022

Advanced Intelligent Systems

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Lead halide perovskite (LHP) nanocrystals (NCs) are considered an emerging class of advanced functional materials with numerous outstanding optoelectronic characteristics. Despite their success in the field, their precision synthesis and fundamental mechanistic studies remain a challenge. The vast colloidal synthesis and processing parameters of LHP NCs in combination with the batch‐to‐batch and lab‐to‐lab variation problems further complicate their progress. In response, a self‐driving fluidic micro‐processor is presented for accelerated navigation through the complex synthesis and processing parameter space of NCs with multistage chemistries. The capability of the developed autonomous experimentation strategy is demonstrated for a time‐, material‐, and labor‐efficient search through the sequential halide exchange and cation doping reactions of LHP NCs. Next, a machine learning model of the modular fluidic micro‐processors is autonomously built for accelerated fundamental studies of the in‐flow metal cation doping of LHP NCs. The surrogate model of the sequential halide exchange and cation doping reactions of LHP NCs is then utilized for five closed‐loop synthesis campaigns with different target NC doping levels. The precise and intelligent NC synthesis and processing strategy, presented herein, can be further applied toward the autonomous discovery and development of novel impurity‐doped NCs with applications in next‐generation energy technologies.

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Guidelines for the characterization of metal halide nanocrystals

Cited by 18 publications

References 104 publications

“Green” synthesis of highly luminescent lead-free Cs₂Ag_xNa_1−xBi_yIn_1−yCl₆ perovskites

“Green” synthesis of highly luminescent lead-free Cs₂Ag_xNa_1−xBi_yIn_1−yCl₆ perovskites

Design rules for obtaining narrow luminescence from semiconductors made in solution

Autonomous Nanocrystal Doping by Self‐Driving Fluidic Micro‐Processors

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Guidelines for the characterization of metal halide nanocrystals

Cited by 18 publications

References 104 publications

“Green” synthesis of highly luminescent lead-free Cs2AgxNa1−xBiyIn1−yCl6 perovskites

“Green” synthesis of highly luminescent lead-free Cs2AgxNa1−xBiyIn1−yCl6 perovskites

Design rules for obtaining narrow luminescence from semiconductors made in solution

Autonomous Nanocrystal Doping by Self‐Driving Fluidic Micro‐Processors

Contact Info

Product

Resources

About

“Green” synthesis of highly luminescent lead-free Cs₂Ag_xNa_1−xBi_yIn_1−yCl₆ perovskites

“Green” synthesis of highly luminescent lead-free Cs₂Ag_xNa_1−xBi_yIn_1−yCl₆ perovskites