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      Emerging fields of colloidal nanophotonics for quality lighting to versatile lasing

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      Author(s)
      Demir, Hilmi Volkan
      Date
      2018
      Source Title
      NATO Science for Peace and Security Series B: Physics and Biophysics
      Print ISSN
      1874-6500
      Electronic ISSN
      1874-6535
      Publisher
      Springer Verlag
      Issue
      Chapter 11
      Pages
      221 - 233
      Language
      English
      Type
      Book Chapter
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      Abstract
      Solution-processed semiconductor nanocrystals have attracted increasingly greater interest in optoelectronics including color conversion and enrichment in quality lighting and display backlighting. Optical properties of these colloidal nanocrystals can be conveniently controlled by tailoring their shape, composition, and size in an effort to realize high-performance light generation and lasing. We now witness the expanding deployment of semiconductor nanocrystals in consumer products being adapted by giant electronics companies. Based on the rational design and control of excitonic processes in these nanocrystals, it is possible to achieve highly efficient light-emitting diodes and optically pumped lasers. In this chapter, we introduce an emerging field of nanocrystal optoelectronics with applications from quality lighting to versatile lasing. We look into the performance limits of color conversion using colloidal nanocrystals. Here we introduce a new concept of all-colloidal lasers developed by incorporating nanocrystal emitters as the optical gain media intimately into fully colloidal cavities. As an extreme case of solution-processed tightly-confined quasi-2D colloids, we also show that the atomically flat nanoplatelets uniquely offer record high optical gain coefficients and ultralow threshold stimulated emission. Given the recent accelerating progress in colloidal nanophotonics, solution-processed quantum materials now hold great promise to challenge their conventional epitaxial counterparts in the near future.
      Keywords
      All-colloidal lasers
      Colloidal nanophotonics
      Colloidal quantum dots
      Colloidal quantum wells
      Nanoplatelets
      Semiconductor nanocrystals
      Permalink
      http://hdl.handle.net/11693/50184
      Published Version (Please cite this version)
      https://doi.org/10.1007/978-94-024-1544-5_11
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      • Institute of Materials Science and Nanotechnology (UNAM) 2098
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