The Japan Society of Applied Physics

2023 International Conference on Solid State Devices and Materials

2023 International Conference on Solid State Devices and Materials

Sep 5, 2023 - Oct 31, 2023
Nagoya Congress Center

11:30 AM - 11:45 AM

[C-4-03] Improvement of PbS quantum dot superlattice solar cells by using iodide ligands

○Seiya Ikeda1, Ibuki Masuda1, Hayato Sato1, Kohki Mukai1 (1. Yokohama National Univ. (Japan))

https://doi.org/10.7567/SSDM.2023.C-4-03

We confirmed that the performance of solar cells was improved by forming a light-absorbing layer of PbS quantum dot (QD) superlattice substituted with iodide ligands for oleic acid ligands. QD superlattices were formed by the sedimentation method in a solvent with high dispersibility for the iodide-ligand QDs. More efficient QD superlattice solar cells will be realized by developping carrier transport layers to extract carriers directly from higher energy bands in the superlattice.