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PRAGATI KUMAR
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Volume 45 All articles Published: 12 May 2022 Article ID 0081
Quantum dots-sensitized solar cells: a review on strategic developments
SUNDAR SINGH ZISHAN H KHAN MOHD BILAL KHAN PRAMOD KUMAR PRAGATI KUMAR
Quantum dots (QDs), the zero-dimensional semiconductor nanocrystals, due to their distinctive optoelectronic properties like size-tunable bandgap, broad absorption spectrum, size-dependent narrow emission profile, and better transport properties with the possibility of multiple exciton generation, have attracted wide attention as photosensitizers for developing QDs-sensitized solar cells (QDSSCs). Among all types of QDs, metal chalcogenide (MCh) QDs especially lead (Pb) and cadmium (Cd)-based chalcogenide QDs have been proven to be most suitable for the application as sensitizers in QDSSCs. This review paper presents a general overview of the QDSSC technology followed by the role of MCh QDs as the sensitizers in DSSCs. Despite their better sensitizing properties, lead (Pb)-based QDs have some serious issues such as lower stability and high toxicity associated with them. Therefore, this review is focused on Cd-based QDs (CdSe and CdTe) and presents a detailed prospective of recent trends in CdSe- and CdTe-based QDSSCs research. It tries to suggest the prospects of improvement strategies like co-sensitization of photoanode; deposition mechanisms, post-synthesis chemical treatments and doping/co-doping of sensitizers; optimization of synthesis parameters and interface modifications, etc. adopted for tailoring the bandgap of CdSe and CdTe QDs.
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Bulletin of Materials Science
Volume 46, 2023
All articles
Continuous Article Publishing mode
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Dr Shanti Swarup Bhatnagar for Science and Technology
Posted on October 12, 2020Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
Chemical Sciences 2020Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
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