Enhanced mobility CsPbI  3  quantum dot arrays for record-efficiency, high-voltage photovoltaic cells

Sanehira, Erin M.; Marshall, Ashley R.; Christians, Jeffrey A.; Harvey, Steven P.; Ciesielski, Peter N.; Wheeler, Lance M.; Schulz, Philip; Lin, Lih Y.; Beard, Matthew C.; Luther, Joseph M.

doi:10.1126/sciadv.aao4204

articleScience AdvancesOct 6, 2017GOLD OA

Enhanced mobility CsPbI 3 quantum dot arrays for record-efficiency, high-voltage photovoltaic cells

EMErin M. Sanehira ARAshley R. Marshall JAJeffrey A. Christians SPSteven P. Harvey PNPeter N. Ciesielski

National Laboratory of the Rockies · University of Washington · +1 more institution

PubMed

Indexed incrossrefdoajpubmed

Abstract

Deficit. We show that charge carrier mobility within perovskite QD films is dictated by the chemical conditions at the QD-QD junctions. The AX treatments provide a method for tuning the coupling between perovskite QDs, which is exploited for improved charge transport for fabricating high-quality QD films and devices. The AX treatments presented here double the film mobility, enabling increased photocurrent, and lead to a record certified QD solar cell efficiency of 13.43%.

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955

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Topics & keywords

Topics

Keywords

Photovoltaic system
Quantum dot
Optoelectronics
Voltage
Materials science
Nanotechnology
Computer science
Physics

UN Sustainable Development Goals

Affordable and clean energy

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