LAUSR

Photoluminescence of Bound‐Exciton Complexes and Assignment to Shallow Defects in Methylammonium/Formamidinium Lead Iodide Mixed Crystals

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0 Published in 2021 at "Advanced Optical Materials"

DOI: 10.1002/adom.202001969

Abstract: The high defect tolerance of metal halide perovskites, in terms of their exceptional optoelectronic properties, is assumed to be due to the very fact that most native point defects are shallow, which does not contribute… read more here.

Keywords: exciton complexes; methylammonium formamidinium; exciton; shallow defects ... See more keywords

Gate-Tunable Bound Exciton Manifolds in Monolayer MoSe2.

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2 Published in 2023 at "Nano letters"

DOI: 10.1021/acs.nanolett.3c00814

Abstract: Two-dimensional (2D) semiconductors with point defects are predicted to host a variety of bound exciton complexes analogous to trions and biexcitons due to strong many-body effects. However, despite the common observation of defect-mediated subgap emission,… read more here.

Keywords: exciton; tunable bound; manifolds monolayer; bound exciton ... See more keywords

Interfacially Bound Exciton State in a Hybrid Structure of Monolayer WS2 and InGaN Quantum Dots.

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1 Published in 2018 at "Nano letters"

DOI: 10.1021/acs.nanolett.8b02143

Abstract: van der Waals heterostructures that are usually formed using atomically thin transition-metal dichalcogenides (TMDCs) with a direct band gap in the near-infrared to the visible range are promising candidates for low-dimension optoelectronic applications. The interlayer… read more here.

Keywords: interfacially bound; bound exciton; monolayer ws2; hybrid structure ... See more keywords

Nonlinear optical absorption of beryllium isoelectronic centers doped in silicon waveguides

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0 Published in 2018 at "Applied Physics Letters"

DOI: 10.1063/1.5046336

Abstract: Impurities provide host materials with additional optical functionalities. In this study, we observed the nonlinear optical absorption of beryllium isoelectronic centers (Be-IECs) doped in silicon waveguides (WGs) with optical population control of their bound exciton… read more here.

Keywords: absorption; optical absorption; bound exciton; beryllium isoelectronic ... See more keywords