Lead-free metal–halide perovskite nanocrystals: synthesis and optical properties [Review] DOI
Yuliya A. Timkina, Ivan D. Skurlov, Aleksandr P. Litvin

et al.

Journal of Optical Technology, Journal Year: 2024, Volume and Issue: 91(6), P. 429 - 429

Published: June 1, 2024

Subject of study. Lead-free perovskite nanocrystals (LFPNCs), their main characteristics, synthesis methods, and optical properties are examined. Aim The aim is to analyze the state-of-the-art research data on methods LFPNCs. In addition, formation processes LFPNCs, dependence nanocrystal size photoluminescence quantum yield (PLQY) parameters (such as method, temperature, ligand type) determined. Main results. LFPNCs analyzed based LaMer cluster growth models. According data, primary for preparing these (NCs) hot-injection ligand-assisted reprecipitation (LARP). Evidently, average increases with increasing reaction temperature. For NCs synthesized by LARP, temperature 100°C leads a slight decrease in yield. However, prepared hot-injection, PLQY remains independent Additionally, using oleic acid results narrow distribution NCs, whereas mixture ligands exhibiting highest PLQY. Practical significance. literature analysis show that LARP method most promising synthesizing owing its ease implementation, energy efficiency, scalability. produced this can be applied active materials sensor technologies, photovoltaics, optoelectronic devices.

Language: Английский

Expanding the Horizons of Machine Learning in Nanomaterials to Chiral Nanostructures DOI Creative Commons
Vera Kuznetsova, Áine Coogan,

Dmitry Botov

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(18)

Published: Jan. 19, 2024

Abstract Machine learning holds significant research potential in the field of nanotechnology, enabling nanomaterial structure and property predictions, facilitating materials design discovery, reducing need for time‐consuming labor‐intensive experiments simulations. In contrast to their achiral counterparts, application machine chiral nanomaterials is still its infancy, with a limited number publications date. This despite great advance development new sustainable high values optical activity, circularly polarized luminescence, enantioselectivity, as well analysis structural chirality by electron microscopy. this review, an methods used studying provided, subsequently offering guidance on adapting extending work nanomaterials. An overview within framework synthesis–structure–property–application relationships presented insights how leverage study these highly complex are provided. Some key recent reviewed discussed Finally, review captures achievements, ongoing challenges, prospective outlook very important field.

Language: Английский

Citations

24

Optical Properties Prediction for Red and Near‐Infrared Emitting Carbon Dots Using Machine Learning DOI
Vladislav S. Tuchin, Evgeniia A. Stepanidenko, Anna A. Vedernikova

et al.

Small, Journal Year: 2024, Volume and Issue: 20(29)

Published: Feb. 11, 2024

Functional nanostructures build up a basis for the future materials and devices, providing wide variety of functionalities, possibility designing bio-compatible nanoprobes, etc. However, development new nanostructured via trial-and-error approach is obviously limited by laborious efforts on their syntheses, cost manpower. This one reasons an increasing interest in design novel with required properties assisted machine learning approaches. Here, dataset synthetic parameters optical important class light-emitting nanomaterials - carbon dots are collected, processed, analyzed transitions red near-infrared spectral ranges. A model prediction characteristics these based multiple linear regression established verified comparison predicted experimentally observed synthesized three different laboratories. Based analysis, open-source code provided to be used researchers procedures.

Language: Английский

Citations

12

When Metal Nanoclusters Meet Smart Synthesis DOI
Zhucheng Yang, Anye Shi, Ruixuan Zhang

et al.

ACS Nano, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 24, 2024

Atomically precise metal nanoclusters (MNCs) represent a fascinating class of ultrasmall nanoparticles with molecule-like properties, bridging conventional metal-ligand complexes and nanocrystals. Despite their potential for various applications, synthesis challenges such as understanding varied synthetic parameters property-driven persist, hindering full exploitation wider application. Incorporating smart methodologies, including closed-loop framework automation, data interpretation, feedback from AI, offers promising solutions to address these challenges. In this perspective, we summarize the that has been demonstrated in nanomaterials explore research frontiers MNCs. Moreover, perspectives on inherent opportunities MNCs are discussed, aiming provide insights directions future advancements emerging field AI Science, while integration deep learning algorithms stands substantially enrich by offering enhanced predictive capabilities, optimization strategies, control mechanisms, thereby extending MNC synthesis.

Language: Английский

Citations

7

B‐Site Doping of Metal Halide Perovskite Nanoplatelets Influences Their Optical Properties DOI Open Access
Aleksandr P. Litvin, Igor V. Margaryan,

Wenxu Yin

et al.

Advanced Optical Materials, Journal Year: 2023, Volume and Issue: 12(8)

Published: Aug. 21, 2023

Abstract Metal halide perovskite nanoplatelets (NPls) have recently joined a rich family of 2D semiconductor nanomaterials. Quantum and dielectric confinement in these nanostructures endow them with useful optical properties, which include, but are not limited to, high linear nonlinear absorption coefficients, narrow tunable emission bands, photoluminescence quantum yield. These characteristics render NPls promising for applications lighting, photodetection, optics, photocatalysis. Doping is universal approach tuning electronic properties materials, the B‐site doping allows further improvement adjustment on demand above‐mentioned may result appearance fundamentally new behavior through embedding optically active dopants. In this mini‐review, basic knowledge about shortly summarized terms their colloidal synthesis, then considered existing approaches (in situ post‐synthetic doping) its effect (doping self‐emitting ions such as Mn 2+ rare‐earth elements; consequences response).

Language: Английский

Citations

14

An appraisal of the role of lanthanide doping in stabilization and performance improvement of [Sm3+-Eu3+-Tm3+]:CsPbI2.2Br0.8 for high-performance energy systems DOI
Shaan Bibi Jaffri, Khuram Shahzad Ahmad, Isaac Abrahams

et al.

Electrochimica Acta, Journal Year: 2024, Volume and Issue: 487, P. 144186 - 144186

Published: March 28, 2024

Language: Английский

Citations

5

Virtual sample generation in machine learning assisted materials design and discovery DOI Open Access
Pengcheng Xu, Xiaobo Ji, Minjie Li

et al.

Journal of Materials Informatics, Journal Year: 2023, Volume and Issue: 3(3)

Published: July 13, 2023

Virtual sample generation (VSG), as a cutting-edge technique, has been successfully applied in machine learning-assisted materials design and discovery. A virtual without experimental validation is defined an unknown sample, which either expanded from the original data distribution for modeling or designed via algorithms predicting. This review aims to discuss applications of VSG techniques discovery based on research progress recent years. First, we summarize commonly used expansion training set, including Bootstrap, Monte Carlo, particle swarm optimization, mega trend diffusion, Gaussian mixture model, random forest, generative adversarial networks. Next, frequently employed searching are introduced, efficient global proactive progress. Then, universally adopted inverse methods presented, genetic algorithm, Bayesian pattern recognition projection. Finally, future directions proposed.

Language: Английский

Citations

12

CsPbCl3:Yb3+ Nanocrystals: Adverse Effects of Colloidally Stable Ytterbium-rich Reaction By-products on Luminescent Down-conversion Performance DOI Creative Commons
Mathis Van de Voorde, Damien Hudry, Dmitry Busko

et al.

Optical Materials X, Journal Year: 2025, Volume and Issue: unknown, P. 100407 - 100407

Published: Feb. 1, 2025

Language: Английский

Citations

0

Strong circularly polarized photoluminescence from mixed halide perovskite nanocrystals induced by anion-assisted chirality imprinting DOI
Yuliya A. Timkina, Ivan D. Skurlov, D.A. Tatarinov

et al.

Journal of Luminescence, Journal Year: 2024, Volume and Issue: 275, P. 120817 - 120817

Published: July 29, 2024

Language: Английский

Citations

2

Ligand-free template-assisted synthesis of stable perovskite nanocrystals with near-unity photoluminescence quantum yield within the pores of vaterite spheres DOI
Oleksii O. Peltek, Pavel M. Talianov,

Anna Krylova

et al.

Nanoscale, Journal Year: 2023, Volume and Issue: 15(16), P. 7482 - 7492

Published: Jan. 1, 2023

Ligand-free methods for the synthesis of halide perovskite nanocrystals are great interest because their excellent performance in optoelectronics and photonics.

Language: Английский

Citations

3

In-situ neodymium ion doping into perovskite nanocrystals over ex-situ and its importance in triclosan sensing DOI
Sumanth Dongre S, R. Shwetharani, Sk. Abdul Moyez

et al.

Materials Chemistry and Physics, Journal Year: 2023, Volume and Issue: 307, P. 128221 - 128221

Published: July 18, 2023

Language: Английский

Citations

3