語系:
繁體中文
English
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
Synthesis and spectroscopic characte...
~
Gonzalez Beerman, Pedro A.
FindBook
Google Book
Amazon
博客來
Synthesis and spectroscopic characterization of manganese doped zinc sulfide quantum dots nanocrystals.
紀錄類型:
書目-電子資源 : Monograph/item
正題名/作者:
Synthesis and spectroscopic characterization of manganese doped zinc sulfide quantum dots nanocrystals./
作者:
Gonzalez Beerman, Pedro A.
面頁冊數:
180 p.
附註:
Source: Dissertation Abstracts International, Volume: 66-05, Section: B, page: 2579.
Contained By:
Dissertation Abstracts International66-05B.
標題:
Chemistry, Inorganic. -
電子資源:
http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3177398
ISBN:
9780542167577
Synthesis and spectroscopic characterization of manganese doped zinc sulfide quantum dots nanocrystals.
Gonzalez Beerman, Pedro A.
Synthesis and spectroscopic characterization of manganese doped zinc sulfide quantum dots nanocrystals.
- 180 p.
Source: Dissertation Abstracts International, Volume: 66-05, Section: B, page: 2579.
Thesis (Ph.D.)--Western Michigan University, 2005.
Zinc sulphide quantum dots were synthesized in aqueous media using sodium polyphosphate as the stabilizer. The nanoparticles were 2.5 +/- 0.5 nm and 5.0 +/- 0.5 nm diameter depending on the synthetic procedure employed and the amount of Mn doped varied from 0.003 to 0.32% (w/w). The nanoparticles were characterized by UV-Vis absorption, luminescence, EPR, near edge x-ray absorption fine structure (NEXAFS), and x-ray photoelectron spectroscopy (XPS), and x-ray diffraction (XRD), and transmission electron microscopy (TEM). These quantum dots show a strong emission at 590 nm due to the 4T 1-6A1 transition characteristic of Mn occupying Zn positions in the lattice in a slightly distorted Td site. The intensity of the emission at 590 nm increases asymptotically with the concentration of Mn(II) while the lifetime of this emission decreases. The EPR data reveal that Mn2+ exists in at least three different types of environments: a slightly distorted Td site, a highly distorted site near the surface of the nanoparticle and surface sites where Mn 2+ is adsorbed. The sites responsible for the luminescence of ZnS:Mn are the Td sites inside the nanoparticle. The 590 nm emission is enhanced when the nanoparticles photo-react with cysteine. This change in intensity could be employed for the design of nanosensors.
ISBN: 9780542167577Subjects--Topical Terms:
517253
Chemistry, Inorganic.
Synthesis and spectroscopic characterization of manganese doped zinc sulfide quantum dots nanocrystals.
LDR
:02246nmm 2200277 4500
001
1827174
005
20061222091111.5
008
130610s2005 eng d
020
$a
9780542167577
035
$a
(UnM)AAI3177398
035
$a
AAI3177398
040
$a
UnM
$c
UnM
100
1
$a
Gonzalez Beerman, Pedro A.
$3
1916119
245
1 0
$a
Synthesis and spectroscopic characterization of manganese doped zinc sulfide quantum dots nanocrystals.
300
$a
180 p.
500
$a
Source: Dissertation Abstracts International, Volume: 66-05, Section: B, page: 2579.
500
$a
Adviser: Subra Muralidharan.
502
$a
Thesis (Ph.D.)--Western Michigan University, 2005.
520
$a
Zinc sulphide quantum dots were synthesized in aqueous media using sodium polyphosphate as the stabilizer. The nanoparticles were 2.5 +/- 0.5 nm and 5.0 +/- 0.5 nm diameter depending on the synthetic procedure employed and the amount of Mn doped varied from 0.003 to 0.32% (w/w). The nanoparticles were characterized by UV-Vis absorption, luminescence, EPR, near edge x-ray absorption fine structure (NEXAFS), and x-ray photoelectron spectroscopy (XPS), and x-ray diffraction (XRD), and transmission electron microscopy (TEM). These quantum dots show a strong emission at 590 nm due to the 4T 1-6A1 transition characteristic of Mn occupying Zn positions in the lattice in a slightly distorted Td site. The intensity of the emission at 590 nm increases asymptotically with the concentration of Mn(II) while the lifetime of this emission decreases. The EPR data reveal that Mn2+ exists in at least three different types of environments: a slightly distorted Td site, a highly distorted site near the surface of the nanoparticle and surface sites where Mn 2+ is adsorbed. The sites responsible for the luminescence of ZnS:Mn are the Td sites inside the nanoparticle. The 590 nm emission is enhanced when the nanoparticles photo-react with cysteine. This change in intensity could be employed for the design of nanosensors.
590
$a
School code: 0257.
650
4
$a
Chemistry, Inorganic.
$3
517253
650
4
$a
Chemistry, Physical.
$3
560527
690
$a
0488
690
$a
0494
710
2 0
$a
Western Michigan University.
$3
804473
773
0
$t
Dissertation Abstracts International
$g
66-05B.
790
1 0
$a
Muralidharan, Subra,
$e
advisor
790
$a
0257
791
$a
Ph.D.
792
$a
2005
856
4 0
$u
http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3177398
筆 0 讀者評論
館藏地:
全部
電子資源
出版年:
卷號:
館藏
1 筆 • 頁數 1 •
1
條碼號
典藏地名稱
館藏流通類別
資料類型
索書號
使用類型
借閱狀態
預約狀態
備註欄
附件
W9218037
電子資源
11.線上閱覽_V
電子書
EB
一般使用(Normal)
在架
0
1 筆 • 頁數 1 •
1
多媒體
評論
新增評論
分享你的心得
Export
取書館
處理中
...
變更密碼
登入