Dr. Anton V. Malko Profile

Dr. Anton V. Malko

Professor at Univ of Texas at Dallas

SPIE Involvement:

Conference Program Committee | Author

Proceedings Article | 17 March 2023 Presentation

Photoexcitation dynamics and long-lived excitons in strain-engineered transition metal dichalcogenides

Anton Malko, Navendu Mondal, Nurul Azam, Yuri Gartstein, Masoud Mahjouri-Samani

Proceedings Volume PC12410, PC1241003 (2023) https://doi.org/10.1117/12.2647617

KEYWORDS: Excitons, Transition metals, Laser development, Silica, Semiconductors, Picosecond phenomena, Optoelectronics, Optical properties, Absorption

Read Abstract +

Proceedings Article | 9 March 2020 Presentation

Enhanced photoluminescence properties and increased long-term stability of zero-dimensional cesium lead bromide nanocrystals via gas-phase alumina oxide encapsulation (Conference Presentation)

Anton Malko

Proceedings Volume 11269, 112690D (2020) https://doi.org/10.1117/12.2551443

Read Abstract +

Proceedings Article | 8 March 2019 Presentation

Efficient photon recycling and radiation trapping in cesium lead halide perovskite waveguides (Conference Presentation)

Anton Malko, Ibrahim Dursun, Yangzi Zheng, Tianle Guo, Michelle deBastiani, Bekir Turedi, Lutfan Sinatra, Md Azimul Haque, Bin Sun, Ayan Zhumekenov, Makhsud Saidaminov, Edward Sargent, Tom Wu, Yuri Gartstein, Osman Bakr, Omar Mohammed

Proceedings Volume 10913, 1091304 (2019) https://doi.org/10.1117/12.2507693

KEYWORDS: Perovskite, Cesium, Lead, Waveguides, Semiconductor lasers, Laser applications, Light emitting diodes, Photodetectors, Optoelectronics

Read Abstract +

Proceedings Article | 4 March 2019 Presentation

Emergence of multiple fluorophores in individual cesium lead bromide nanocrystals (Conference Presentation)

Anton Malko

Proceedings Volume 10907, 109070V (2019) https://doi.org/10.1117/12.2517394

Read Abstract +

Perovskite nanocrystals (PNCs) have attracted a lot of scientific interest in the recent years due to the extraordinary optical and electronic properties such as compositional and structural versatility, tunable bandgap, high photoluminescence (PL) quantum yield (QY) and facile chemical synthesis. Among them, all inorganic CsnPbXm perovskites have attracted particular attention due to enhanced light emission and photo/thermal stability. Lower dimensionality polymorphs can be formed by manipulation of chemical- synthesis conditions where Cs+ can stabilize 3D [PbX6] framework, resulting in 2D (nanosheet), 1D (nanowire) and 0D (nanodot) internal octahedra arrays within the bulk of the perovskite. The gamut of available experimental approaches are further expanded in colloidal PNCs where both external size quantization and internal 0D structure may combine to achieve “multidimensional” electronic properties that are engineered both on atomic scale and nanoscale. In this work, we explore the photon emission statistics from individual 3D (CsPbBr3) and 0D (Cs4PbBr6) PNCs in order to address the origin of their PL emission. Using time-correlated, time-stamped single photon counting (TCSPC) we obtain PL intensity trajectories and extract PL lifetimes and second–order correlation functions at different excitation levels. Blinking traces show “burst-like” intensity behavior, with large bin-to-bin fluctuations, akin to molecular fluorophores. Recorded single photon emission statistics indicate that some of the measured PNCs are single photon emitters, others contain several emissive centers with very similar lifetimes. Few of the PNCs exhibited effects of photobrightening – superlinear increase of PL emission intensity due to the activation of an additional number of emissive centers within the PNC. Such emission behavior, independent of the confinement effects afforded by quantization in the medium/large sized Cs-based PNCs, supports theoretical framework that points towards Br-vacancy states localized within isolated octahedra.

Proceedings Article | 14 March 2018 Presentation

Energy transfer interactions between semiconductor nanocrystals and TMDC materials (Conference Presentation)

Anton Malko

Proceedings Volume 10521, 1052103 (2018) https://doi.org/10.1117/12.2295027

KEYWORDS: Energy transfer, Semiconductors, Nanocrystals, Solar energy, Energy coupling, Dielectrics, Light-matter interactions, Optoelectronics, Quantization, Excitons

Read Abstract +

Proceedings Article | 4 October 1999 Paper

Development of solid state optical limiting devices

Su Xu, Hsing-Lin Wang, Anton Malko, Randolph Kohlman, L. Smilowitz, Victor Klimov, Duncan McBranch, Jean-Luc Nogues, William Moreshead, David Hagan, Sidney Yang, Eric Van Stryland

Proceedings Volume 3798, (1999) https://doi.org/10.1117/12.363865

KEYWORDS: Transmittance, Optical limiting, Absorption, Solid state physics, Laser damage threshold, Solid state electronics, Signal attenuation, Picosecond phenomena, Visible radiation, Solids

Read Abstract +

Proceedings Article | 14 May 1993 Paper

Planar waveguides fabricated by proton irradiation in quartz silica

A. Tomov, L. Shteyngart, V. Red'ko, Anton Malko

Proceedings Volume 1932, (1993) https://doi.org/10.1117/12.145596

Read Abstract +

Showing 5 of 7 publications

Conference Committee Involvement (6)

Nanoscale and Quantum Materials: From Synthesis and Laser Processing to Applications 2025

25 January 2025 | San Francisco, United States

Nanoscale and Quantum Materials: From Synthesis and Laser Processing to Applications 2024

27 January 2024 | San Francisco, California, United States

Nanoscale and Quantum Materials: From Synthesis and Laser Processing to Applications 2023

28 January 2023 | San Francisco, California, United States

Nanoscale and Quantum Materials: From Synthesis and Laser Processing to Applications 2022

22 January 2022 | San Francisco, California, United States

Synthesis and Photonics of Nanoscale Materials XVIII

6 March 2021 | Online Only, California, United States

Showing 5 of 6 Conference Committees

Keywords/Phrases

Search In:

Publication Years