Khalid Hasan Easawi Elsayed
Professor
Surface modification of CdSe nanocrystals: Application to polymer solar cell.
Current Applied Physics • 2020
Publication Information
Authors
M. Nabil, Shaimaa A. Mohamed, K. Easawi, Salah S.A. Obayya, S. Negm, H. Talaat, M.K. El-Mansy
Keywords
Not Available
Journal
Current Applied Physics
Publisher
Elsevier
Volume
20
Issue
Not Available
Pages
470-476
publication.type
International
Paper Link
Open Link
Supplementary Materials
Not Available
Abstract
The optimum choice of the ligand that stabilizes the colloidal quantum dots and passivate the surface is crucial
for tuning the energy level and remain elusive. The atomic ligand passivation with iodide remains superior over
other surface treatments. Herein, we applied the iodide ligand to passivate the CdSe nanocrystals with an excitonic
absorption at 2.1 eV by a liquid-liquid extraction process. We took the view of the change in the optical
and structural properties upon ligand exchange. Finally, we tested the performance of the iodide treated dots by
employing it in an inverted structure polymer solar cell based on P3HT: PCBM.
for tuning the energy level and remain elusive. The atomic ligand passivation with iodide remains superior over
other surface treatments. Herein, we applied the iodide ligand to passivate the CdSe nanocrystals with an excitonic
absorption at 2.1 eV by a liquid-liquid extraction process. We took the view of the change in the optical
and structural properties upon ligand exchange. Finally, we tested the performance of the iodide treated dots by
employing it in an inverted structure polymer solar cell based on P3HT: PCBM.