Dual-resonance nanostructures for color downconversion of colloidal quantum emitters

• Main Authors: Ha, Son Tung, Lassalle, Emmanuel, Liang, Xiao, Do, Thi Thu Ha, Foo, Ian, Shendre, Sushant, Durmusoglu, Emek Goksu, Valuckas, Vytautas, Adhikary, Sourav, Paniagua-Dominguez, Ramon, Demir, Hilmi Volkan, Kuznetsov, Arseniy I.
• Other Authors: School of Physical and Mathematical Sciences
• Format: Article
• Language: English
• Published: 2024
• Subjects: Engineering; Guided mode resonance; Titanium dioxide
• Online Access: https://hdl.handle.net/10356/174804
• Institution: Nanyang Technological University

We present a dual-resonance nanostructure made of a titanium dioxide (TiO2) subwavelength grating to enhance the color downconversion efficiency of CdxZn1-xSeyS1-y colloidal quantum dots (QDs) emitting at ∼530 nm when excited with a blue light at ∼460 nm. A large mode volume can be created within th...