목차
1. 서론 1
2. 비 Cd계 양자점의 특성 및 제조 기술 2
2.1. III-V족 양자점 2
2.2. 전이금속이 도핑된 양자점 3
2.3. I-III-VI족 다원계 양자점 4
3. 비 Cd계 양자점의 LED 응용 기술 5
3.1. 조명용 LED 응용 현황 5
3.2. 디스플레이 응용 현황 6
4. 요약 7
참고문헌 8
Table 1. Comparison of Various Quantum Dots 2
Table 2. Band Gap and Bohr Radius of II-VI Group and III-V Group Semiconductors 2
Table 3. Light Output and Production Cost/life time of Various Light Source 6
Fig. 1. Size Dependence of electronic energy levels for quantum dots and their application (Bio-imaging, solar cells, LED, display). 1
Fig. 2. Optical absorption and photoluminescence spectra of InP quantum dots synthesized from reactant having various In/P ratio: (a) In/P〉1, (b) In/P〈1. 3
Fig. 3. Emission of yellow and green light from transition metaldoped quantum dots and their photoluminescence and photoluminescence excitation spectra. 4
Fig. 4. (a) Crystal structure, (b) spectral range of light emission, and (c) variation of photoluminescence spectra with different Cu ion deficiency in I-III-VI group quantum dots. 4
Fig. 5. (a) Emission spectra and (b) emission efficiency with CRI values of white LEDs fabricated with SiO₂-encapsulated CdSe/ZnS and YAG:Ce phosphors. 6
Fig. 6. (a) Energy level alignment, (b) emission spectra, and (c) light emission of quantum dot based electroluminescent device. 7
Fig. 7. Structure and light emission from back light unit (Nanosys). 7