Influence of Different Bifunctional Linkers Modified TiO2 in Quantum Dot Sensitized Solar Cell
In this work, we report the quantum dot sensitized solar cells (QDSSCs) by loading CdSe QDs on TiO2 films via different bifunctional linkers. Three different linker molecules as ligands were employed to anchor QDs to TiO2 film: 4-mercaptobutyric acid (MBA), mercaptosuccinic
acid (MSA) and sodium 3-mercapto-1-propanesulfonate (MPS). Electrochemical impedance spectroscopy (EIS) demonstrated that the electron lifetime for QDSSC based on MPS-modified TiO2 was longer than those for QDSSCs based on MBA- and MSA-modified TiO2, which indicated that
interface charge recombination was reduced by MPS linker. The power conversion efficiency (PCE) of ∼1% was achieved for MPS-modified QDSSC.
Keywords: BIFUNCTIONAL LINKER; CDSE; QUANTUM DOT; SOLAR CELL
Document Type: Short Communication
Publication date: 01 February 2013
- Nanoscience and Nanotechnology Letters (NNL) is a multidisciplinary peer-reviewed journal consolidating nanoscale research activities in all disciplines of science, engineering and medicine into a single and unique reference source. NNL provides the means for scientists, engineers, medical experts and technocrats to publish original short research articles as communications/letters of important new scientific and technological findings, encompassing the fundamental and applied research in all disciplines of the physical sciences, engineering and medicine.
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