Vertically and Laterally Self-Aligned Double Layer of Nanocrystals in Nanopatterned Dielectric Layer for Nanocrystal Floating Gate Memory Device

The formation of a vertically and laterally self-aligned double layer of CdSe colloidal nanocrystals (NCs) in a nanopatterned dielectric layer on Si substrate was demonstrated by a repeating dip-coating process for NC deposition and atomic layer deposition (ALD) of Al(2)O(3) layer. A nanopatterned SiO(2)/Si substrate was formed by patterning with a self-assembled diblock copolymer. After the selective deposition of the first NC layer inside the SiO(2) nanopattern by dip-coating, an Al(2)O(3) interdielectric layer and the second NC layer in the Al(2)O(3) nanopattern were sequentially deposited. The capacitance voltage measurement of an Al-gate/ALD-Al(2)O(3)(25 nm)/seconcl-CdSe-NCs/ALD-Al(2)O(3)(2 nm)/first-CdSe-NCs/nanopattemed-SiO(2)(15 nm)/p-Si substrate structure showed the flatband voltage shift through the charge transport between the gate and NCs. (C) 2010 The Electrochemical Society. [DOI: 10.1149/1.3479548] All rights reserved

Planning and Design for the Levee Green and Historical Downtown District, Wharton, Texas

During the spring semester of 2021, Master of Landscape Architecture (MLA) students developed design concepts in the LAND 621 studio. Students build on the local knowledge and community feedback collected by the City in December 2020. Further, they participated in a virtual community engagement design charrette with community leaders and residents who provided the community vision and direction for the designs. The final ideas were presented to the public using a virtual platform, Social Pinpoint, where community members engaged and provided community feedback. Students explored designs for the greenway corridor along the Colorado River to address flooding mitigation and stormwater management while meeting the community's recreational needs by connecting the riverfront and existing parks by a trail system. The designs aim to restore shared outdoor gathering spaces and to establish long-needed connectivity to other parts of the City. Based on the community priority and future development potential, students focused on enhancing existing assets like the downtown, Fulton Street Corridor, Guffey Park, Milam Street, Elm Street Promenade, Railroad Greenway, and Sunset Street, Riverside Nature Park, and West-end Community Health Park.The City of Wharton partnered with TxTC to develop a Master Plan and Landscape Improvement Design for the Levee Green and Historic Downtown District. The City reached out to TxTC to help plan a levee green space overlay project, which includes an $80 million the US Army Corps of Engineers levee project that will span approximately 6 miles through Wharton and along the banks of the Colorado River. The levee will be adjacent to communities that have been repeatedly impacted by flooding events and run along the southern border of the historically registered downtown business district and preserved courthouse.City of Wharton, Texas; Texas Target Communities (TxTC); Texas A&M University (TAMU

Selective Incorporation of Colloidal Nanocrystals in Nanopatterned SiO2 Layer for Nanocrystal Memory Device

CdSe colloidal nanocrystals with a size of similar to 5 nm were selectively incorporated in SiO2 nanopatterns formed by a self-assembled diblock copolymer patterning through a simple dip-coating process. The selective incorporation was achieved by capillary force, which drives the nanocrystals into the patterns during solvent evaporation in dip-coating. The capacitor structures of an Al-gate/atomic layer deposition-Al2O3 (27 nm)/CdSe (5 nm)/patterned SiO2 (25 nm)/p-Si substrate were fabricated to characterize the charging/discharging behavior for a memory device. The flatband voltage shift was observed by a charge transport between the gate and the nanocrystals. It demonstrates the colloidal nanocrystal application to a memory device through selective incorporation in regularly ordered nanopatterns by a simple dip-coating process