②White emission using mixtures of CdSe quantum dots and PMMA as a phosphor
This paper explain WLED that have mixture stucture (one single chip(emit blue light) and cdse/PMMA quantum dots). CdSe quantum dots are synthesized by the wet chemical method using CdO and Se powder as precursor. And they control the size of quantum dot and mix the phospors(PMMA).
These quantum dots have three differe
SOLVENT AND PH EFFECT
ON THE ABSORPTION
AND FLUORESCENCE SPECTRA OF
5-[(2,3-DIHYDROXYBENZALIDENE)-AMINO] NAPHTHALENE-2-SULFONIC ACID
Abstract
To investigate the solvent effect, we measured the absorption spectra using the mixture of DMSO and ethanol. Also, the excitation spectra of DMSO-deionized water. The larger the ratio of DMSO, the greater the absorbance and the intensity. At various pH
mixture of races and ethnicities, resulting in rich diversity.
. Many original Portuguese settlers married native women, which created a new race, called 'mestizos'.
. 'Mulattoes' are descendents of the Portuguese and African slaves.
. Slavery was abolished in 1888, creating over time a further blurring of racial lines.
. Unlike many other Latin American countries where there is a distinct
dye) (dye는 SDS가 포함된 파란색 염색물질로서 눈으로 얼만큼 전기영동이 잘 일어났는지 볼 수 있도록 한다.)
Sample을 4min동안 끓여주고 spin down.
1)Gel 제작
Separating gel(5ml)
Stacking gel
H2O
1.9ml
H2O
2.1ml
30% acrylamide mix
1.7ml
30% acrylamide mix
0