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Peer-reviewedCC BY 4.0ACS Omega

Photoconversion Behavior of a ZnO/Graphite Solar Cell

  • Vanja Fontenele Nunes1
  • Francisco Marcone Lima2
  • Francisco Nivaldo Aguiar Freire2
  • Carla Freitas de Andrade2
  • Antonio Sérgio Bezerra Sombra3
  1. 1Instituto Tecnológico de Aeronáutica , , ,
  2. 2Universidade Federal do Ceará , , , ,
  3. 3Universidade Federal do Ceará , , ,
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Abstract

This work assembled dye solar cells by replacing platinum with graphite on indium tin oxide (ITO). First, the device was tested only on the ITO; afterward, graphite was placed on the ITO and evaluated as a counter electrode in the cell. The results showed that the presence of graphite increased the incident photocurrent conversion (IPCE) of the cell. The electrode used was a combination of zinc oxide with 4% bismuth, and characterization of the film had high reflectance in the visible region, a thickness of around 1.47 μm, and a crystallite size of around 38.5 nm. The addition of graphite as a counter electrode increased the cell efficiency by 10 times, driven by an increase in current density from 0.02 to 1.2 mA/cm and in IPCE from 0.04 to 2.26%.

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Cite

BibTeXRIS
BibTeX
@article{nunes2026photoconversion,
  title = {{Photoconversion Behavior of a ZnO/Graphite Solar Cell}},
  author = {Vanja Fontenele Nunes and Francisco Marcone Lima and Francisco Nivaldo Aguiar Freire and Carla Freitas de Andrade and Antonio Sérgio Bezerra Sombra},
  journal = {ACS Omega},
  year = {2026},
  month = nov,
  doi = {10.1021/acsomega.6c06228},
  url = {https://pubs.acs.org/acsodf/article/doi/10.1021/acsomega.6c06228/5466006/Photoconversion-Behavior-of-a-ZnO-Graphite-Solar},
  note = {CC BY 4.0},
}
RIS
TY  - JOUR
TI  - Photoconversion Behavior of a ZnO/Graphite Solar Cell
AU  - Vanja Fontenele Nunes
AU  - Francisco Marcone Lima
AU  - Francisco Nivaldo Aguiar Freire
AU  - Carla Freitas de Andrade
AU  - Antonio Sérgio Bezerra Sombra
PY  - 2026
DA  - 2026/11/06
JO  - ACS Omega
DO  - 10.1021/acsomega.6c06228
UR  - https://pubs.acs.org/acsodf/article/doi/10.1021/acsomega.6c06228/5466006/Photoconversion-Behavior-of-a-ZnO-Graphite-Solar
AB  - This work assembled dye solar cells by replacing platinum with graphite on indium tin oxide (ITO). First, the device was tested only on the ITO; afterward, graphite was placed on the ITO and evaluated as a counter electrode in the cell. The results showed that the presence of graphite increased the incident photocurrent conversion (IPCE) of the cell. The electrode used was a combination of zinc oxide with 4% bismuth, and characterization of the film had high reflectance in the visible region, a thickness of around 1.47 μm, and a crystallite size of around 38.5 nm. The addition of graphite as a counter electrode increased the cell efficiency by 10 times, driven by an increase in current density from 0.02 to 1.2 mA/cm and in IPCE from 0.04 to 2.26%.
SN  - 2470-1343
ER  -