Understanding of mechanism for size and morphology control of pbse nanocrystals through slow colloidal growth = 느린 입자 성장을 통한 PbSe 나노입자의 크기와 형상제어에 대한 메커니즘 이해

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In this dissertation, I report the fine size tuning of PbSe nanocrytals (NCs) with atomic-level precision and the morphologically controlled 2-dimensional PbSe nanosheets (NSs). The approach involves slow injection of precursors with excess amounts of oleic acid. Re-tarded growth, due to both the slow supply of precursors and the surfeit of oleic acid, caus-es the attachment of PbSe NCs through the (110) planes, the most reactive planes, resulting in the formation of two-dimensional NSs. In contrast, such an attachment process can be prevented by impurities, e.g., Cd chalcogenide (CdSe or CdS) NCs. Instead, PbSe NCs are formed with a uniform size so slowly that it is possible to obtain the targeted size of the NCS.
Advisors
Lee, Doh-Changresearcher이도창
Description
한국과학기술원 : 생명화학공학과,
Publisher
한국과학기술원
Issue Date
2014
Identifier
568949/325007  / 020124491
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 생명화학공학과, 2014.2, [ 59 p. ]

Keywords

PbSe nanosheets; 리간드; 올레익 산; 반응 속도; 느린주입; 몰폴로지; nanocrystals; morphology; slow injection; reaction rate; oleic acids; ligands; PbSe 나노시트; 나노크리스탈

URI
http://hdl.handle.net/10203/196280
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=568949&flag=dissertation
Appears in Collection
CBE-Theses_Master(석사논문)
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