Precise Surface State Control of Carbon Quantum Dots to Enhance Charge Extraction for Solar Cells.

ABSTRACT: Dye-sensitized solar cells are regarded as promising candidates to resolve the energy and environmental issues in recent years, arising from their solution-processable fabrication technology and high power conversion efficiency. However, there are still several problems regarding how to accelerate the development of this type of photovoltaics, including the limited light-harvesting ability and high-production cost of molecular dye. In the current work, we have systematically studied the role of nitrogen-doped carbon quantum dots (N-CQDs) as co-sensitizers in traditional dye sensitized solar cells. A series of N-CQDs have been prepared by employing chitosan as a precursor via one-pot hydrothermal technology for various times, demonstrating a maximized efficiency as high as 0.089% for an onl

SUBMITTER: Yang Q 

PROVIDER: S-EPMC7153469 | biostudies-literature | 2020 Mar

REPOSITORIES: biostudies-literature