Current Challenges in the Development of Quantum Dot Sensitized Solar Cells

• Published in: Advanced energy materials Vol. 10; no. 33
• Main Author: Mora‐Seró, Iván
• Format: Journal Article
• Language: English
• Published: Weinheim Wiley Subscription Services, Inc 01-09-2020
• Subjects: Cadmium; Configurations; Electrolytes; Electrolytic cells; Lead; Molten salt electrolytes; perovskites; photoconversion efficiency; Photovoltaic cells; Quantum dots; Quantum efficiency; solar cell stability; Solar cells; Solid electrolytes
• ISSN: 1614-6832; 1614-6840
• DOI: 10.1002/aenm.202001774

Quantum dot sensitized solar cells (QDSSCs) have experienced a continuous performance growth in the past years presenting a photoconversion efficiency >13%. QDSSCs constitute a smart approach to take advantage of the properties of semiconductor quantum dots (QDs), mitigating the transport constrains. In contrast with other QD solar cell configurations, for QDSSCs, the record efficiencies have been reported with Pb and Cd‐free based sensitizers. The development of techniques in order to provide photoanodes with very high QD loading and the discovery of new electrolytes, including all solid configurations, are the most important future challenges that this technology must address to further increase cell performance and stability.
Quantum dot (QDs) sensitized solar cells have experienced a continuous performance increase in recent years. In order to take further advantage of the use of green QDs and trapped carried recycling, this technology has to face two main challenges, the increase of QD loading and the electrolyte compatibility to increase both efficiency and stability.