| Full text | |
| Author(s): |
Costa, Magno Barcelos
;
de Souza Lucas, Francisco Willian
;
Mascaro, Lucia Helena
Total Authors: 3
|
| Document type: | Journal article |
| Source: | Journal of Solid State Electrochemistry; v. 22, n. 5, p. 6-pg., 2018-05-01. |
| Abstract | |
Sb2Se3 (SSe) has been highlight as a low-cost, less complex, low toxicity, and earth-abundant photovoltaic (PV) absorber not only because of its excellent properties but also because of its demonstrated 5.6% certified efficiency and decent device stability. An understanding of the effects of intentional dopants on the properties of this material would help to further improve SSe PV devices. In this work, Fe-doped SSe thin film was obtained by electrodeposition at different levels of doping, which is an easy, cheap, and scalable technique. At the studied levels, this dopant caused low influence in band gap and morphologic-structural properties of the films; however, it did impact their electronic properties and photoactivity toward hydrogen gas evolution. The film obtained from a deposition bath composed of 5% of Fe presented a photocurrent similar to that shown by the undoped film, despite showing a carrier density that was three orders of magnitude higher. This behavior makes us believe that, compared to the undoped film, a photovoltaic device made with this 5% Fe-doped film would have a higher fill factor and efficiency. (AU) | |
| FAPESP's process: | 13/07296-2 - CDMF - Center for the Development of Functional Materials |
| Grantee: | Elson Longo da Silva |
| Support Opportunities: | Research Grants - Research, Innovation and Dissemination Centers - RIDC |
| FAPESP's process: | 16/10513-3 - Synthesis and Application of Functional Nanostructured Materials in Electro/photoelectrocatalysis under Continuous Flow Conditions: A New Perspective for Synthesis and Functionalization of Heterocyclic System. |
| Grantee: | Francisco Willian de Souza Lucas |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |