| Full text | |
| Author(s): |
Resende, Andressa L. S.
[1]
;
Costa, Antonio G. R.
[1]
;
Lima, Aline E. B.
[2]
;
Costa, Maria J. S.
[2]
;
Longo, Elson
[3]
;
Cavalcante, Laecio S.
[1]
;
Santos, Reginaldo S.
[1]
Total Authors: 7
|
| Affiliation: | [1] Univ Estadual Piaui, Dept Chem, PPGQ GERATEC, Joao Cabral 2231, POB 381, BR-64002150 Teresina, Piaui - Brazil
[2] Univ Fed Piaui UFPI, Dept Chem, Teresina, Piaui - Brazil
[3] Univ Fed Sao Carlos, CDMF UFSCAR, Sao Carlos, SP - Brazil
Total Affiliations: 3
|
| Document type: | Journal article |
| Source: | INTERNATIONAL JOURNAL OF ENERGY RESEARCH; v. 45, n. 2, p. 2797-2809, FEB 2021. |
| Web of Science Citations: | 0 |
| Abstract | |
In this article, we report a solar cell prepared withp-type cuprous oxide (Cu2O) andn-type gamma-tungsten oxide (gamma-WO3) films combined by an redox electrolyte in a configuration similar to that used in dye-sensitized solar cells. Cu2O films were prepared by the electrochemical method in three different pH conditions. X-ray diffraction patterns revealed that the Cu2O films presented a crystalline phase with cubic structure after deposition, whereas then-type gamma-WO(3)film was prepared by the drop-casting method. Optical analyses showed that both oxide films absorb visible light. After the photoelectrochemical characterization of the films, solar cells configured like a ``sandwich{''} (Cu2O/electrolyte/gamma-WO3) were assembled and investigated under irradiation of 100 mW cm(-2). The solar cell with I-/I3-redox pair showed better results than that prepared with polysulfide K2S/Sn2-electrolyte. For each solar cell, the investigated parameters were short-circuit current density, open-circuit voltage, fill factor, maximum power, and cell efficiency. The method proposed here can be considered new, promising, and simple for the preparation of solar cells with ap-njunction. (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 |