Enhancing Solid State Carbon Quantum Dot Solar Cells by Manipulating the TiO2 Electron Transport Layer
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open in viewerSolar energy is a growing source of sustainable energy. However, some of the main components of solar cells are made up of inorganic, toxic, and expensive materials.[1, 2] In this study, carbon quantum dots (CQDs) were used as the photo-absorber in solar cells. CQDs are made from common organic carbon sources such as glucose, citric acid, and ethanediamine, and act as the semiconductor in a solar cell.[3, 4] The downside of CQDs in solar cells is their low efficiencies (<1%), whereas most modern solar cells produce efficiencies of around 20%. This study used the in-situ growth of CQDs onto the electron transport layer (ETL) of a solid state solar cell through hydrothermal carbonization. By testing cells with varying ETLs, it was found that decreasing the ETL thickness increased efficiency.
- This report represents the work of one or more WPI undergraduate students submitted to the faculty as evidence of completion of a degree requirement. WPI routinely publishes these reports on its website without editorial or peer review.
- Creator
- Publisher
- Identifier
- E-project-042419-092138
- Advisor
- Year
- 2019
- Date created
- 2019-04-24
- Resource type
- Major
- Rights statement
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