Volume 27, Issue 1 p. 116-121
Communication

Efficient Spray-Coated Colloidal Quantum Dot Solar Cells

Illan J. Kramer,

Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4 Canada

IBM Canada Research & Development Centre, 120 Bloor Street East, Toronto, Ontario, M4W 1B7 Canada

These authors contributed equally to this work.

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James C. Minor,

Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4 Canada

These authors contributed equally to this work.

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Gabriel Moreno-Bautista,

Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4 Canada

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Lisa Rollny,

Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4 Canada

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Pongsakorn Kanjanaboos,

Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4 Canada

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Damir Kopilovic,

Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4 Canada

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Susanna M. Thon,

Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4 Canada

Department of Electrical and Computer Engineering, Johns Hopkins University, 3400 North Charles Street, Baltimore, Maryland, 21218 USA

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Graham H. Carey,

Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4 Canada

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Kang Wei Chou,

Physical Sciences and Engineering Division, Solar and Photovoltaic Engineering Research Center (SPERC), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955–6900 Saudi Arabia

CELLS-ALBA Synchrotron, Carretera BP 1413, Km. 3.3, 08290 Cerdanyola del Vallès, Barcelona, Spain

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David Zhitomirsky,

Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4 Canada

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Aram Amassian,

Physical Sciences and Engineering Division, Solar and Photovoltaic Engineering Research Center (SPERC), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955–6900 Saudi Arabia

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Edward H. Sargent,

Corresponding Author

Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4 Canada

E-mail: ted.sargent@utoronto.caSearch for more papers by this author
First published: 10 November 2014
Citations: 110

Abstract

A colloidal quantum dot solar cell is fabricated by spray-coating under ambient conditions. By developing a room-temperature spray-coating technique and implementing a fully automated process with near monolayer control—an approach termed as sprayLD—an electronic defect is eliminated resulting in solar cell performance and statistical distribution superior to prior batch-processed methods along with a hero performance of 8.1%.

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