Efficient White LEDs Using Liquid-state Magic-sized CdSe Quantum Dots

Autor: Sedat Nizamoglu, Sirous Khabbaz Abkenar, Sadra Sadeghi, Cleva W. Ow-Yang
Přispěvatelé: Nizamoğlu, Sedat (ORCID 0000-0003-0394-5790 & YÖK ID 130295), Sadeghi, Sadra, Abkenar, Sirous Khabbaz, Ow-Yang, Cleva W., Graduate School of Sciences and Engineering, Department of Biomedical Sciences and Engineering, Department of Materials Science and Engineering
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Scientific Reports
Scientific Reports, Vol 9, Iss 1, Pp 1-9 (2019)
ISSN: 2045-2322
Popis: Magic clusters have attracted significant interest to explore the dynamics of quantum dot (QD) nucleation and growth. At the same time, CdSe magic-sized QDs reveal broadband emission in the visible wavelength region, which advantageously offer simple integration of a single-type of nanomaterial and high color rendering ability for white light-emitting diodes (LEDs). Here, we optimized the quantum yield of magic-sized CdSe QDs up to 22% via controlling the synthesis parameters without any shelling or post-treatment process and integrated them in liquid-state on blue LED to prevent the efficiency drop due to host-material effect. The fabricated white LEDs showed color-rendering index and luminous efficiency up to 89 and 11.7 lm/W, respectively.
Scientific and Technological Research Council of Turkey (TÜBİTAK); Marie Curie Career Integration Grant; European Union (European Union); Horizon 2020; Turkish Academy of Sciences (TÜBA), TÜBA-Gedip; Science Academy of Turkey (BAGEP)
Databáze: OpenAIRE