Issue 10, 2011

6.5% efficient perovskite quantum-dot-sensitized solar cell

Abstract

Highly efficient quantum-dot-sensitized solar cell is fabricated using ca. 2–3 nm sized perovskite (CH3NH3)PbI3 nanocrystal. Spin-coating of the equimolar mixture of CH3NH3I and PbI2 in γ-butyrolactone solution (perovskite precursor solution) leads to (CH3NH3)PbI3 quantum dots (QDs) on nanocrystalline TiO2 surface. By electrochemical junction with iodide/iodine based redox electrolyte, perovskite QD-sensitized 3.6 μm-thick TiO2 film shows maximum external quantum efficiency (EQE) of 78.6% at 530 nm and solar-to-electrical conversion efficiency of 6.54% at AM 1.5G 1 sun intensity (100 mW cm−2), which is by far the highest efficiency among the reported inorganic quantum dot sensitizers.

Graphical abstract: 6.5% efficient perovskite quantum-dot-sensitized solar cell

Supplementary files

Article information

Article type
Communication
Submitted
19 Jul 2011
Accepted
15 Aug 2011
First published
07 Sep 2011

Nanoscale, 2011,3, 4088-4093

6.5% efficient perovskite quantum-dot-sensitized solar cell

J. Im, C. Lee, J. Lee, S. Park and N. Park, Nanoscale, 2011, 3, 4088 DOI: 10.1039/C1NR10867K

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements