Organic sensitization of graphene oxide and reduced graphene oxide thin films for photovoltaic applications
- 18 January 2021
- journal article
- research article
- Published by Hindawi Limited in International Journal of Energy Research
- Vol. 45 (6), 9657-9666
- https://doi.org/10.1002/er.6414
Abstract
In this work, a new organic compound (K‐Azo) was introduced to enhance the electrical and optical performance of graphene oxide (GO) and reduced GO (rGO) nanostructured films. The improved and modified chemical vapour method was employed for the synthesis of GO and rGO. The photophysical characterization of thin films was performed by applying analytical techniques including X‐ray diffraction, Fourier‐transform infrared spectroscopy, scanning electron microscopy, ultraviolet‐visible, and Raman spectroscopy. The electrical properties (I‐V characteristic) of GO and rGO thin films displayed higher conductivity which was 4.07 × 10−7 and 1.10 × 10−3 S/cm, respectively in the presence of organic sensitizer. However, GO and rGO thin films showed 9.91 × 10−7 and 6.17 × 10−4 S/cm, respectively in the absence of K‐Azo sensitizer. Optical and electrical investigations indicated that the characteristics of GO and rGO were improved due to the presence of organic sensitizer. The long‐range π‐electron delocalization in organic sensitizer contributed to higher conductivity for potential photovoltaic solar cell applications.Funding Information
- Tianjin University
This publication has 66 references indexed in Scilit:
- Use of Congo red dye-formaldehyde as a new sensitizer-reductant couple for enhanced simultaneous solar energy conversion and storage by photogalvanic cells at the low and artificial sun intensityScientific Reports, 2020
- Nonfullerene Acceptors: A Renaissance in Organic Photovoltaics?Advanced Energy Materials, 2020
- Highly efficient white-LED-light-driven photocatalytic hydrogen production using highly crystalline ZnFe2O4/MoS2 nanocompositesInternational Journal of Hydrogen Energy, 2020
- Rhodanine-based nonfullerene acceptors for organic solar cellsScience China Materials, 2019
- Silver Bismuth Sulfoiodide Solar Cells: Tuning Optoelectronic Properties by Sulfide Modification for Enhanced Photovoltaic PerformanceAdvanced Energy Materials, 2018
- Review of recent trends in photoelectrocatalytic conversion of solar energy to electricity and hydrogenApplied Catalysis B: Environment and Energy, 2017
- Incorporation of rubidium cations into perovskite solar cells improves photovoltaic performanceScience, 2016
- Characterization of some metal-free organic dyes as photosensitizer for nanocrystalline ZnO-based dye sensitized solar cellsInternational Journal of Hydrogen Energy, 2011
- Solar photovoltaic electricity: Current status and future prospectsSolar Energy, 2011
- The analysis on photovoltaic electricity generation status, potential and policies of the leading countries in solar energyRenewable and Sustainable Energy Reviews, 2011