Doping Colloidal Quantum Dot Materials and Devices for Photovoltaics

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openAccess

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Volume Title

A2 Katsausartikkeli tieteellisessä aikakauslehdessä

Date

2022-04-01

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en

Pages

29

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Energies, Volume 15, issue 7

Abstract

Colloidal semiconductor nanocrystals have generated tremendous interest because of their solution processability and robust tunability. Among such nanocrystals, the colloidal quantum dot (CQD) draws the most attention for its well-known quantum size effects. In the last decade, applications of CQDs have been booming in electronics and optoelectronics, especially in photo-voltaics. Electronically doped semiconductors are critical in the fabrication of solar cells, because carefully designed band structures are able to promote efficient charge extraction. Unlike conventional semiconductors, diffusion and ion implantation technologies are not suitable for doping CQDs. Therefore, researchers have creatively developed alternative doping methods for CQD materials and devices. In order to provide a state-of-the-art summary and comprehensive understanding to this research community, we focused on various doping techniques and their applications for photovoltaics and demystify them from different perspectives. By analyzing two classes of CQDs, lead chalcogenide CQDs and perovskite CQDs, we compared different working scenarios of each technique, summarized the development in this field, and raised our own future perspectives.

Description

Funding Information: Funding: This article was funded by Natural Sciences and Engineering Research Council of Canada (NSERC Discovery Grant program; RGPIN-2019-04664). Funding Information: Acknowledgments: X.W. would like to thank Natural Sciences and Engineering Research Council of Canada for funding support. Publisher Copyright: © 2022 by the authors. Licensee MDPI, Basel, Switzerland.

Keywords

doping, lead chalcogenide, perovskite, photovoltaics, quantum dot

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Citation

Meng, L & Wang, X 2022, ' Doping Colloidal Quantum Dot Materials and Devices for Photovoltaics ', Energies, vol. 15, no. 7, 2458 . https://doi.org/10.3390/en15072458