東華大學圖書館 |

語系: 繁體中文

說明(常見問題)

回圖書館首頁

手機版館藏查詢

登入

回首頁

切換: 標籤 | MARC模式 | ISBD

Colloidal nanocrystals: Synthesis an...

Saunders, Aaron Edward.

FindBook

Google Book

Amazon

博客來

Colloidal nanocrystals: Synthesis and shape-control, interparticle interactions and self-assembly.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Colloidal nanocrystals: Synthesis and shape-control, interparticle interactions and self-assembly./
作者:	Saunders, Aaron Edward.
面頁冊數:	244 p.
附註:	Adviser: Brian A. Korgel.
Contained By:	Dissertation Abstracts International67-04B.
標題:	Chemistry, Inorganic. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3217156
ISBN:	9780542666025

Colloidal nanocrystals: Synthesis and shape-control, interparticle interactions and self-assembly.
Saunders, Aaron Edward.

Colloidal nanocrystals: Synthesis and shape-control, interparticle interactions and self-assembly. - 244 p.

Adviser: Brian A. Korgel.

Thesis (Ph.D.)--The University of Texas at Austin, 2005.

Control over nanocrystal growth kinetics provides a powerful way of tailoring particle size and shape during synthesis. Investigations into the growth of gold nanocrystals demonstrated how reaction conditions can be adjusted to control the growth rate and produce monodisperse particles. Kinetic control during the synthesis of CdS, CdSe and CdTe nanoparticles allows the shape to be tuned, from rods to spheres, without modifying the reaction chemistry. The growth and optical properties of these shape-anisotropic semiconductor particles were studied, and these methods were extended to produce semiconductor heterostructure nanorods.

ISBN: 9780542666025Subjects--Topical Terms:

517253
Chemistry, Inorganic.

Colloidal nanocrystals: Synthesis and shape-control, interparticle interactions and self-assembly.
LDR:03556nam 2200313 a 45 001 967664
005 20110915
008 110915s2005 eng d
020 $a 9780542666025
035 $a (UMI)AAI3217156
035 $a AAI3217156
040 $a UMI $c UMI
100 1 $a Saunders, Aaron Edward. $3 1291532
245 1 0 $a Colloidal nanocrystals: Synthesis and shape-control, interparticle interactions and self-assembly.
300 $a 244 p.
500 $a Adviser: Brian A. Korgel.
500 $a Source: Dissertation Abstracts International, Volume: 67-04, Section: B, page: 2120.
502 $a Thesis (Ph.D.)--The University of Texas at Austin, 2005.
520 $a Control over nanocrystal growth kinetics provides a powerful way of tailoring particle size and shape during synthesis. Investigations into the growth of gold nanocrystals demonstrated how reaction conditions can be adjusted to control the growth rate and produce monodisperse particles. Kinetic control during the synthesis of CdS, CdSe and CdTe nanoparticles allows the shape to be tuned, from rods to spheres, without modifying the reaction chemistry. The growth and optical properties of these shape-anisotropic semiconductor particles were studied, and these methods were extended to produce semiconductor heterostructure nanorods.
520 $a Solvent-mediated interparticle interactions between nanocrystals dispersed in toluene and in supercritical carbon dioxide were also studied. Nanocrystal dispersions were characterized using small-angle X-ray scattering in order to obtain information about the pair interaction potential. In organic solvents, subtle differences in the concentration-dependent scattering from dispersions allowed second virial coefficients to be measured as a function of nanocrystal size. Interestingly, larger nanocrystals exhibited overall repulsive interactions, while smaller nanocrystals exhibited attractive interactions, which is likely due to differences in ligand coverage among the different sized particles. Nanocrystals coated with fluorinated ligands could be dispersed into supercritical carbon dioxide, and the relatively strong interparticle interactions were measured at different carbon dioxide densities. As expected, the interaction strength increased as the solvent density was lowered, due to a decreased ability of the solvent to solvate the capping ligands. The formation of metastable nanocrystal flocculates was also observed at all system conditions studied.
520 $a The assembly of nanocrystals into ordered superlattices under equilibrium conditions is strongly influenced by nanocrystal interparticle interactions. The formation of binary superlattices was studied, and an ordered AB phase was observed from the co-assembly of small gold and large iron nanocrystals. A non-equilibrium route, breath figure templating, was also used to produce nanocrystal films with hierarchal order and porous polymer films. Evaporation of a nanocrystal or polymer dispersion in a humid atmosphere causes water droplets to nucleate and grow at the solvent-air interface. The solute stabilizes the water droplets which assemble into ordered arrays to template the drying film. The design rules for producing macroporous nanocrystal and polymer films are discussed.
590 $a School code: 0227.
650 4 $a Chemistry, Inorganic. $3 517253
650 4 $a Engineering, Chemical. $3 1018531
650 4 $a Engineering, Materials Science. $3 1017759
690 $a 0488
690 $a 0542
690 $a 0794
710 2 0 $a The University of Texas at Austin. $3 718984
773 0 $t Dissertation Abstracts International $g 67-04B.
790 $a 0227
790 1 0 $a Korgel, Brian A., $e advisor
791 $a Ph.D.
792 $a 2005
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3217156