Colloidal Quantum Dots

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Colloidal semiconductor quantum dots (QDs) have been widely used as sensitizers for photovoltaics and solar-driven wtare splitting thanks to their unique optoelectronic properties, such as a size tunable band gap, wide absorption, high absorption coefficients and multiple exciton generation.

With their nanometric size, such nanosctructures exhibit superior luminescent and absorption properties. Pi-SOL Technologies commercialize wide range of QDs including PbS, CdSe and CdS in different forms:
 

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• Colloidal quantum dots

• Colloidal core/shell quantum dots

• Colloidal heterostructured quantum dots

Selected references:

H Zhao, J Liu, F Vidal, A Vomiero, F Rosei, Tailoring the interfacial structure of colloidal “giant” quantum dots for optoelectronic applications, Nanoscale 10, 17189-17197 (2018).

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K. Wang, X. Tong, Y. Zhou, H. Zhang, et al., Efficient Solar-driven Hydrogen Generation Using Colloidal Heterostructured Quantum Dots, J. Mater. Chem. A, 7, 14079 (2019).

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G. S. Selopala, H. Zhao, G. Liu, et al., Interfacial engineering in colloidal “giant” quantum dots for highperformance photovoltaics, Nano Energy 55, 377–388 (2019).