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Keyword: Cdsete Quantum Dots (1)	2 Apr 2025	Run
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articleNo Access
Enhanced Performance of Near-Infrared-Absorption CdSeTe Quantum Dot-Sensitized Solar Cells Via Octa-Aminopropyl Polyhedral Oligomeric Silsesquioxane Modification
- Zichao Feng,
- Ruina Ma,
- An Du,
- Yinan Zhang,
- Xue Zhao,
- Yongzhe Fan, and
- Xiaoming Cao
Nano01 Jul 2019
Preview Abstract
The charge recombination caused by surface defects limits photovoltaic properties of quantum dot-sensitized solar cells (QDSSCs), which can be suppressed by modifying organic or inorganic molecules and atomic ligands. In this paper, octa-aminopropyl polyhedral oligomeric silsesquioxane (OA-POSS) connected and modified near-infrared absorption CdSeTe quantum dots (QDs) through coupling agent (1-ethyl-3-3-dimethylaminopropyl carbodiimide hydrochloride). The results suggest that OA-POSS reduces the surface defects of CdSeTe QDs and suppresses charge recombination. Therefore, the power conversion efficiency improves nearly 41%, which increases from 2.00% to 2.82%.

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