DataVXAdvanced Optical MaterialsPaper
journal article·2025-06

Third‐Order Nonlinear Optical Modulation in MoS2 Nanosheets in the Presence of CdSe and CdSe/V2O5 Quantum Dots

Srinivasa Rao Konda, Puspendu Barik, Subhash Singh, Venkatesh Mottamchetty, Amit Srivasthava, Rashid A. Ganeev, Venugopal Rao Soma, Chunlei Guo, Wei Li

Advanced Optical Materials· Volume 13· Issue 18
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Source abstract

Abstract

Abstract Embedding semiconductor quantum dots (QDs) into a 2D transition metal dichalcogenide (TMDCs) can significantly modulate the electronic charge transfer and, hence, the nonlinear optical (NLO) properties of the TMDCs. However, the influence of strong interactions within 2D nanostructure‐QDs composites on their third‐order NLO responses has not been explored thus far. The third‐order NLO characteristics of few‐layered MoS2 nanosheets embedded with CdSe and CdSe/V2O5 QDs are studied using 35‐fs pulses at 400 and 800 nm excitations. It is observed that an alteration of the third‐order NLO properties in MoS2 occurs in the presence of QDs. Notably, the MoS2‐QDs hybrid system exhibits a significant modulation in third‐order nonlinearities, with a substantial multi‐fold increase in the figure of merit in the presence of core CdSe QDs and suppression with passivated CdSe/V2O5 QDs. These findings strongly indicate that QD‐based hybrid systems with charge transfer channels probably enhance carrier mobility and enable tunable electron transfer dynamics, which can emerge as a viable strategy for tailoring third‐order NLO properties in TMDCs, positioning these hybrid materials as promising candidates for optoelectronic applications.
Source: crossref · Quality: baseline

Research context

NanomaterialsElectronic materialsComposites

OpenAlex topics: Nonlinear Optical Materials Studies · 2D Materials and Applications · Chalcogenide Semiconductor Thin Films

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

GPL Photonics Laboratory State Key Laboratory of Luminescence Science and Technology Changchun Institute of Optics Fine Mechanics and Physics Chinese Academy of Sciences Changchun Jilin 130033 China

Department of Physics Indian Institute of Technology Ropar Rupnagar Punjab 140001 India

Materials Science and Engineering Program College of Arts and Sciences American University of Sharjah Sharjah UAE

The Institute of Optics University of Rochester Rochester NY 14627 USA

Department of Physics and Astronomy Aarhus University Ny Munkegade 120 Aarhus C 8000 Denmark

Department of Physics TDPG College VBS Purvanchal University Jaunpur 222001 India

Institute of Fundamental and Applied Research TIIAME National Research University Tashkent 100000 Uzbekistan

Department of Optics and Spectroscopy Voronezh State University Voronezh 394006 Russia

Department of Sciences Western Caspian University Baku AZ1001 Azerbaijan

School of Physics & DIA‐CoE (formerly ACRHEM) University of Hyderabad Hyderabad Telangana 500046 India

Funding

Jilin Provincial Scientific and Technological Development Program · National Natural Science Foundation of China · Defence Research and Development Organisation

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