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분야
hwp① One-dimensional Steeplechase for Electrons Realized(by Samuelson)
②White emission using mixtures of CdSe quantum dots and PMMA as a phosphor
③ Red, Green, and Blue LEDs for White Light Illumination
2. RGB-LED Nano Wire ??
3. structure and driving principle of RGB-LED NW
4. making process of RGB-LED NW
5. conclusion
6. Reference
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 different size : 2.9nm, 3.4nm, 4.3nm in diameter. Each of them absorb different energy and emit the different light color(2.9nm-555nm, 3.4nm-580nm, 4.3nm-625nm). As combined with light that blue chip emitted, this material can emit the white color light.
This structure is very simple, but the problem of this structure is low efficiency and organic material(phospors).
③ Red, Green, and Blue LEDs for White Light Illumination
This LED application is structured by three chip(red, green, blue). Each chip emits three color. This structure has more strong light intensity than single chip WLED, but process is too complicate and not cost effective. And electron transfer is slow caused by 2-dimensional chip.
2. RGB-LED Nano Wire ??
Existed RGB-LED structure is 3-chip structure(emit red, green, blue) and mixture structure that constructed with One single chip(emit blue light) and different size quantum dots(emit light by
M. T. Bjo1rk,†† B. J. Ohlsson,†† T. Sass,†† A. I. Persson,†† C. Thelander,††
M. H. Magnusson,†† K. Deppert,†† L. R. Wallenberg,‡‡ and L. Samuelson*,††
- White emission using mixtures of CdSe quantum dots and PMMA as a phosphor
Wonkeun Chung, Kwanhwi Park, Hong Jeong Yu, Jihyun Kim, Byung-Hee Chun, Sung Hyun Kim
- InGaN/GaN MQW high brightness LED grown by MOCVD
G.Y. Zhang a,*, Z.J. Yang a, Y.Z. Tong a, Z.X. Qin a, X.D. Hu a,
Z.Z. Chen a, X.M. Ding a, M. Lu a, Z.H. Li a, T.J. Yu a, L. Zhang a, Z.Z. Gan a,
Y. Zhao b, C.F. Yang b
- Red, Green, and Blue LEDs for White Light Illumination
Subramanian Muthu, Associate Member, IEEE, Frank J. P. Schuurmans, and Michael. D. Pashley
- Electron transport in InAs nanowires and heterostructure nanowire devices
C. Thelandera,*, M.T. Bjo¨rka, M.W. Larssonb, A.
-Complete composition tunability of InGaN nanowires using a combinatorial approach
TEVYE KUYKENDALL1, PHILIPP ULRICH1, SHAUL ALONI2 AND PEIDONG YANG1,2
-Nanowire dye-sensitized solar cells
MATT LAW1,2*, LORI E. GREENE1,2*, JUSTIN C. JOHNSON1, RICHARD SAYKALLY1 AND
PEIDONG YANG1,2††
1Department of Chemistry, University
- Inorganic Semiconductor Nanowires: Rational Growth, Assembly, and Novel Properties
Yiying Wu, Haoquan Yan, Michael Huang, Benjamin Messer,
Jae Hee Song, and Peidong Yang
