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Dr. Mohamed Nabil Abd Elmonaem Mohamed Diab :: Publications: |
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| Title: | Surface modification of CdSe nanocrystals: Application to polymer solar cell |
| Authors: | M. Nabila, Shaimaa A. Mohamedb,c,d,∗, K. Easawia, Salah S.A. Obayyac, S. Negm,M.K. El-Mansyfa, H. TalaatM. Nabil, Shaimaa A. Mohamed, K. Easawi, Salah S.A. Obayya, S. NegmM.K. El-Mansy, H. Talaat |
| Year: | 2020 |
| Keywords: | Photovoltaic CdSe nanocrystal Surface passivation Iodide ligand |
| Journal: | current applied physics |
| Volume: | 20 |
| Issue: | 3 |
| Pages: | 470-476 |
| Publisher: | Elsevier |
| Local/International: | International |
| Paper Link: | |
| Full paper | Mohamed Nabil Abd Elmonaem Mohamed Diab_1-s2.0-S1567173920300018-main.pdf |
| 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. |
