Colloidal Photonics of Atomically Flat 2D Nanocrystals
Hilmi Volkan Demir a b
a Nanyang Technological University (NTU), Singapore, Singapore
b Bilkent University, Turkey, Ankara, Turkey
Materials for Sustainable Development Conference (MATSUS)
Proceedings of nanoGe Fall Meeting 2018 (NFM18)
S6 Solution-based Two-dimensional Nanomaterials Sol2D
Torremolinos, Spain, 2018 October 22nd - 26th
Organizers: Christophe Delerue, Sandrine Ithurria and Christian Klinke
Invited Speaker, Hilmi Volkan Demir, presentation 264
DOI: https://doi.org/10.29363/nanoge.nfm.2018.264
Publication date: 6th July 2018

 

Solution-processed semiconductor nanocrystals have attracted great interest in photonics including high-purity color conversion and enrichment in quality lighting and display backlighting. These nanocrystals span different types and heterostructures of semiconductors in the forms of colloidal quantum dots and rods to a more recently emerging class of colloidal quantum wells. Here we will talk about colloidal photonics using the family of quasi-2D, tightly-confined, atomically flat nanocrystals. Here we will show that custom-design 2D heteronanoplatelets uniquely offer record high optical gain coefficients and ultra-low threshold stimulated emission. In addition, we will show that controlled stacking of these nanoplatelets provides us with the ability to further tune and master their excitonic properties. Also, we will discuss doping of these nanoplatelets with Cu for high-flux solar concentration properties and with Mn for precise wavefunction-engineered magnetic properties. Given their most recent accelerating progress, these solution-processed quantum materials hold great promise to challenge their epitaxial counterparts in semiconductor optoelectronics in the near future.

  

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