Articles & Issues
- Language
- English
- Conflict of Interest
- In relation to this article, we declare that there is no conflict of interest.
- Publication history
-
Received June 9, 2025
Accepted July 30, 2025
Available online November 25, 2025
-
This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
All issues
Enhanced Photocurrent of Electrodeposited Copper Oxide Films Doped with Solution‑Processable Organic Cationic Dye as a Dopant
https://doi.org/10.1007/s11814-025-00533-x
Abstract
Copper oxide (
Cu2O) is a promising p-type semiconductor due to its low cost, environmental stability. However, increasing
the crystallinity of Cu2O
thin film has been a challenge. In this study, high-quality Cu2O
thin film is successfully fabricated
via electrodeposition method under ambient conditions, eliminating the need for vacuum environment. Finally, the organic
cationic dye, crystal violet (CV), is doped onto Cu2O
in two forms (thermal deposition and solution process). Both doping
methods involve converting the dopants from colored to leuco form. After doping, the contact between Cu2O
and the
electrode transitions from a Schottky contact to Ohmic-like and Ohmic contact. And it induces enhanced current in the
semiconductor Cu2O
under light stimulation for photosensor applications through light absorption and photon generation.
Through morphological analysis of different distribution patterns of dopants and optical characterization, solution reduced
CV-doped photosensor emerges as the photosensor exhibiting the highest optical performance. This technology suggests the
potential for cheap and effective photosensor fabrication and the device to be utilized in various optical applications with
good ohmic contact.
