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6.5% efficient perovskite quantum-dot-sensitized solar cell

Jeong‐Hyeok Im, Chang-Ryul Lee, Jin‐Wook Lee, Sang‐Won Park, Nam‐Gyu Park

Nanoscale · 2011 · 3,180 citations

doi.org/10.1039/c1nr10867k

Abstract

Highly efficient quantum-dot-sensitized solar cell is fabricated using ca. 2-3 nm sized perovskite (CH(3)NH(3))PbI(3) nanocrystal. Spin-coating of the equimolar mixture of CH(3)NH(3)I and PbI(2) in γ-butyrolactone solution (perovskite precursor solution) leads to (CH(3)NH(3))PbI(3) quantum dots (QDs) on nanocrystalline TiO(2) surface. By electrochemical junction with iodide/iodine based redox electrolyte, perovskite QD-sensitized 3.6 μm-thick TiO(2) 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.

Cite this paper

Im, J., Lee, C.-R., Lee, J., Park, S., & Park, N. (2011). 6.5% efficient perovskite quantum-dot-sensitized solar cell. Nanoscale, 3(10), 4088. https://doi.org/10.1039/c1nr10867k

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