Department of Energy Science and Engineering
MNEDL(Multifunctional Nanomaterials & Energy Devices Lab)
1. Journal Articles
Two-Step "Seed-Mediated" Synthetic Approach to Colloidal Indium Phosphide Quantum Dots with High-Purity Photo- and Electroluminescence
- Title
- Two-Step "Seed-Mediated" Synthetic Approach to Colloidal Indium Phosphide Quantum Dots with High-Purity Photo- and Electroluminescence
- Author(s)
- Ramasamy, Parthiban ; Ko, Keum-Jin ; Kang, Jae-Wook ; Lee, Jong-Soo
- Issued Date
- 2018-06
- Citation
- Chemistry of Materials, v.30, no.11, pp.3643 - 3647
- Type
- Article
- Keywords
- LIGHT-EMITTING-DIODES ; PRECURSOR CONVERSION ; LUMINESCENT ; GROWTH ; NANOCRYSTALS ; NUCLEATION ; EFFICIENT ; RANGE
- ISSN
- 0897-4756
- Abstract
- A study was conducted to present a two-step approach to synthesize highly monodisperse indium phosphide (InP) quantum dots (QDs) absorbing from 490 to 650 nm. Initially, InP QDs with an average size of 1.9 nm were synthesized and later used as 'seeds' to grow larger QDs by continuously injecting Zn(In)-P complexes as monomers source. The study used X-ray photoelectron spectroscopy (XPS) to study the oxidation of phosphorus in the synthesized InP 'seeds'. The absence of oxidized phosphorus signal showed the oxide free surface of the 'seed' QDs.
- Publisher
- American Chemical Society
- Related Researcher
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Lee, Jong-Soo
- Research Interests Design of new type of multifunctional nanoparticles for energy-related devices; 다기능성 나노재료; 무기물 태양전지; 열전소자
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