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Understanding gold nanoisland formation using transport measurement

ผู้แต่ง: Toyanath Joshi
สำนักพิมพ์: [Long Beach, California] : California State University, Long Beach, 2010.
วิทยานิพนธ์: M.S. California State University, Long Beach 2010
ชุด: California State University, Long Beach.; Master's thesis collection, Dept. of Physics and Astronomy.
ครั้งที่พิมพ์/รูปแบบ:   วิทยานิพนธ์ / ดุษฎีนิพนธ์ : วิทยานิพนธ์ / ดุษฎีนิพนธ์   ไฟล์คอมพิวเตอร์ : ภาษาอังกฤษ
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Abstract: Novel metal nano-clusters are always being an interest of scientists and researchers because of their unique optical and chemical properties. This thesis studies the formation mechanism of gold nanoisland film by studying transport properties. We used layer-by-layer self-assembled multilayer gold samples and annealed them at the temperature ranging from room temperature to 625°C. Transport properties,  อ่านมากขึ้น…
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ประเภท/แบบฟอร์ม Academic theses
ขนิดวัสดุ: วิทยานิพนธ์ / ดุษฎีนิพนธ์, ทรัพยากรอินแทอร์เน็ต
ประเภทเอกสาร หนังสือ, ไฟล์คอมพิวเตอร์, แหล่งข้อมูลอินเทอร์เน็ต
ผู้แต่งทั้งหมด : ผู้แต่งร่วม Toyanath Joshi
ISBN: 9781124550053 1124550054
OCLC Number: 1051461032
คำอธิบาย: x, 80 leaves : illustrations, charts
ชื่อชุด: California State University, Long Beach.; Master's thesis collection, Dept. of Physics and Astronomy.
ความรับผิดชอบ: by Toyanath Joshi.

บทคัดย่อ:

Abstract: Novel metal nano-clusters are always being an interest of scientists and researchers because of their unique optical and chemical properties. This thesis studies the formation mechanism of gold nanoisland film by studying transport properties. We used layer-by-layer self-assembled multilayer gold samples and annealed them at the temperature ranging from room temperature to 625°C. Transport properties, particularly the resistance and capacitance, were measured in situ during annealing and compared with the surface morphology and UV-vis studies. Five films of the 8-layer gold and one film of the 5-layer silver and 5-layer gold nanoparticle sequentially self-assembled samples were measured. Temperature dependent resistance curves were plotted and analyzed. From the resistance curves, we were able to identify the actual temperature for polymer evaporation and nanoisland formation. These data were re-verified by comparing them with the temperature dependent studies of surface morphology and UV-vis spectroscopy. The effect of measuring condition, like heating rate and pre-annealing time factor, was also analyzed. Particularly, the slow heating and long pre-annealing time effected nanoisland growth mechanism.

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