Carolina Villamil Franco

Alumni and Former Staff

Postdoctoral Fellow in Laquai Group

Research Interests

I am interested in the study of ultrafast processes as charge carrier relaxation, exciton cooling, Auger recombination and multiple exciton generation in perovskites materials (colloidal 2D nanostructures and thin films) using femto-second Transient Absorption Spectroscopy (fs-TA) and Time-resolved Photoluminescence (TR-PL). 

Selected Publications

  • “Exciton Cooling in 2D Perovskite Nanoplatelets: Rationalized Carrier-Induced Stark and Phonon Bottleneck Effects.” The Journal of Physical Chemistry Letters, 2022, 393–99.
    Villamil Franco, Carolina, Gaëlle Trippé-Allard, Benoît Mahler, Christian Cornaggia, Jean-Sébastien Lauret, Thomas Gustavsson, and Elsa Cassette.
  • “Auger Recombination and Multiple Exciton Generation in Colloidal Two-Dimensional Perovskite Nanoplatelets: Implications for Light-Emitting Devices.” ACS Applied Nano Materials 4, no. 1 (2021): 558–67.
    Villamil Franco, Carolina, Benoît Mahler, Christian Cornaggia, Thomas Gustavsson, and Elsa Cassette.
  • “Charge Carrier Relaxation in Colloidal FAPbI3 Nanostructures Using Global Analysis.” Nanomaterials 10, 2020, 1–15.
    Villamil Franco, Carolina, Benoît Mahler, Christian Cornaggia, Thomas Gustavsson, and Elsa Cassette.


  • Ph.D., Physical Chemistry, Université Paris-Saclay, Gif-sur-Yvette, France, 2021.
  • MSc., Physics, ENS Paris-Saclay, Gif-sur-Yvette, France, 2017.
  • BSc., Chemistry, Universidad del Valle, Cali, Colombia, 2016.

Professional Profile

  • 2022-current: Postdoctoral fellow, KAUST Solar Center, Thuwal, Saudi Arabia.
  • 2017-2021: PhD. student, CEA - Université Paris-Saclay, Gif-sur-Yvette, France.
  • 2017: MSc. student, LOB - Ecole Polytechnique, Palaiseau, France.
  • 2015-1016: Physics and Maths high school teacher, Colegio San Fernando Rey, Cali, Colombia.
  • 2013-2014: BSc research student, GICH - Universidad del Valle, Cali-Colombia.


  • 2019: Best oral presentation: 5ème édition des Journées des Pérovskites Halogénées (JPH2019).
  • 2017: Ecole doctorale 2MIB Scholarship - Université Paris-Saclay.
  • 2016: International master ENS Scholarship - ENS Paris-Saclay.
  • 2015: Academic incentives on financial tuition fees - Universidad del Valle. 

KAUST Affiliations

  • KAUST Solar Center (KSC)
  • Division of Physical Science and Engineering (PSE)

Research Interests Keywords

hybrid perovskites materials charge carrier dynamics excitonics Time-resolved photoluminescence