Aliphatic mixed ligands Sn(II) complexes as photon absorbers in quantum dots sensitized solar cell
| dc.contributor.author | Agoro, Mojeed A. 0000-0002-0434-9635 | |
| dc.contributor.author | Meyer, Edson L. 0000-0002-9912-311X | |
| dc.contributor.author | Mbese, Johannes Z. 0000-0001-9136-9302 | |
| dc.contributor.author | Fuku, Xolile 0000-0001-8247-109X | |
| dc.contributor.author | Ahia, Chinedu C. 0000-0002-5666-1823 | |
| dc.date.accessioned | 2026-01-22T14:21:13Z | |
| dc.date.available | 2026-01-22T14:21:13Z | |
| dc.date.issued | 2022-04 | |
| dc.description.abstract | Dye-sensitized solar cells have attracted a lot of research interest due to the quest for an alternative energy supply given that it is cost-effective and its materials are easily available. However, the need to improve the conversion efficiency of these solar cell devices has necessitated the search for new materials that will lead to more energy conversion. One of such material of interest is tin (II) sulfide (SnS). In present study, we report results from the synthesis of hexadecylamine (HDA)-capped SnS and uncapped SnS photosensitizer using a molecular precursor. The efficiency of the photon absorbers, their morphological, structural and electrochemical properties were examined using different techniques. Both photosensitizers displayed X-ray diffraction (XRD) peaks within the range 26.03 –66.05 , which corresponds to orthorhombic structure. Field Emission Scanning Electron Microscope (FE-SEM) and High-Resolution Transmission Electron Microscope (HRTEM) further revealed that HDA-capped SnS has a better morphology and size distribution. UV–Vis analysis shows that the HDA-capped SnS exhibits strong absorption in the entire visible region which is attributed to perfect orientation. The HDA-capped photosensitizer superiority was linked to well reduced electron recombination and electron lifetime. The addition of HDA capping agent improved the J-V performance with a new conversion efficiency of 8.20%. Results obtained from present work proselytize the concept of using capping agent as an approach for improving the quality of photon absorbers. | |
| dc.description.sponsorship | The authors wish to acknowledge the NRF Thuthuka Grant (GUN: 118139); National Department of Science and Innovation (DST/CON 0170/2019), Eskom TESP (P948); National Research Foundation (GUN: 93215). The authors are also grateful for the financial support by Govan Mbeki Research and Development Centre (GMRDC), University of Fort Hare South Africa. | |
| dc.identifier.citation | Agoro MA; Meyer EL; Mbese J; Ahia C; Fuku X (2022): Aliphatic mixed ligands Sn(II) complexes as photon absorbers in quantum dots sensitized solar cell: Journal of Solid State Chemistry, 308. hia). Contents lists available at ScienceDirect Journal of Solid State Chemistry journal homepage: www.elsevier.com/locate/jssc https://doi.org/10.1016/j.jssc.2022.122890 | |
| dc.identifier.issn | 1095-726X | |
| dc.identifier.uri | http://hdl.handle.net/20.500.11837/3496 | |
| dc.language.iso | en | |
| dc.publisher | Elsevier | |
| dc.subject | Dye solar cell | |
| dc.subject | Quantum dots | |
| dc.subject | Tin sulfide | |
| dc.subject | Thermal-decomposition | |
| dc.subject | Electrochemical | |
| dc.subject | Molecular precursor | |
| dc.title | Aliphatic mixed ligands Sn(II) complexes as photon absorbers in quantum dots sensitized solar cell | |
| dc.type | Article |