Login / Signup

Green-to-UV photon upconversion enabled by new perovskite nanocrystal-transmitter-emitter combination.

Mio KoharagiNaoyuki HaradaKeisuke OkumuraJunji MiyanoShota HisamitsuNobuo KimizukaNobuhiro Yanai
Published in: Nanoscale (2021)
The first example of triplet-triplet annihilation-based photon upconversion (TTA-UC) from green light to ultraviolet (UV) light sensitized by lead halide perovskite nanocrystals is demonstrated. The combination of a new transmitter that extracts triplet energy from perovskite and a UV emitter with a low triplet energy level lengthens the excitation wavelength of perovskite-sensitized upconverted UV emission.
Keyphrases
  • energy transfer
  • room temperature
  • solar cells
  • high efficiency
  • quantum dots
  • aqueous solution
  • light emitting
  • photodynamic therapy
  • monte carlo