https://diode.zone/videos/watch/e76567d0-95a5-4437-9e4c-342bd629dc97 Solar energy harvesting is the clean, sustainable, and renewable alternative to fossil fuels. Conversion of the solar-light directly into electrical energy via photovoltaic devices plays a significant method. Recently, successful developments using nanowires-based solar cells (NWs) pave the way for a lesser material consumption, while maintaining the efficiency high. Different nanowires geometries have been proposed to enhance the power conversion. In this regard, different NWs have been implemented such as nano funnel, nano pyramids, and conical structures. It has been shown that the nano-funnel NW design improved the absorption due to the combination of modes produced by the top cylinder and the bottom tapered cone. Furthermore, modified nano-pyramid with a bottom substrate has improved the absorption due to the ability of the grating sidewalls to trap more light through the active layer. Additionally, the spacing between the adjacent nanopyramid structures can exhibit microcavity resonance, which contributes to light broadband absorption improvement. Lately, the optical properties of silicon nanowire solar cells with crescent nanohole have been introduced. It has been shown that the electric field profiles of the proposed NWs are strongly improved due to the excitation of numbers of modes that can be coupled with the incident light in addition to the strengthened nanofocusing effect with improved coupling between the photoactive material and the dielectric shell focus. In this talk, the optical and electrical properties of modified crescent-shaped (CS) silicon nanowires are presented in detail. The optoelectronic characteristics of the proposed design are numerically examined using Lumerical software. In this regard, the optical performance is studied using the finite difference time domain (FDTD) technique. The ultimate efficiency of the suggested NWs structure is enhanced by 14% compared to the conventional NW assembly. The enhancements of the reported design can be related to the created cavities in between the proposed CS-NWs which force the light to be confined in the lateral direction. Furthermore, the proposed design limits the surface reflection due to the reduced filling ratio compared to the ordinary NW. Therefore, the light trapping is increased, thus, the light absorption is improved. Based on the optimized geometrical parameters obtained, the P-V characteristics of the proposed CS-NW are numerically studied using the finite element method. The proposed design offers conversion efficiency (CE) of 19% and 18.5% in the core-shell and axial junctions, respectively, with an enhancement of 23% compared to the ordinary one. Our study reveals that conserving thin NW n-doping shell could efficiently reduce the NW sidewalls recombination effect. At surface recombination velocity of 102 cm/s, the CE of the core- shell junction is reduced to 18.7% compared to 16.6% of the axial junction, with a reduction of 1.6% and 11%, respectively. Therefore, the optoelectronic performance of the core-shell junction was slightly influenced by recombination along the NW surface with respect to the axial junction. Presenter: Rami El-Bashar Zewail City of Science and Tecxhnology, Gizeh, Cairo, Egypt Tue, 20 Oct 2026 16:40:00 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://diode.zone https://diode.zone/lazy-static/avatars/61b689b7-84d5-43c7-9fa8-e63a7fd1d952.png https://diode.zone/videos/watch/e76567d0-95a5-4437-9e4c-342bd629dc97 All rights reserved, unless otherwise specified in the terms specified at https://diode.zone/about and potential licenses granted by each content's rightholder.