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Perovskite Photovoltaics on Roll-to-Roll Coated Ultra-Thin Glass as Exceptional Flexible Power-Generator for Indoors

36 Pages Posted: 13 Jan 2020 Sneak Peek Status: Under Review

See all articles by Sergio Castro-Hermosa

Sergio Castro-Hermosa

University of Rome Tor Vergata - Centre for Hybrid and Organic Solar Energy (C.H.O.S.E.)

Giulia Lucarelli

University of Rome Tor Vergata - Centre for Hybrid and Organic Solar Energy (C.H.O.S.E.)

Michiel Top

Fraunhofer Institute for Organic Electronics, Electron Beam and Plasma Technology FEP

Matthias Fahland

Fraunhofer Institute for Organic Electronics, Electron Beam and Plasma Technology FEP

John Fahlteich

Fraunhofer Institute for Organic Electronics, Electron Beam and Plasma Technology FEP

Thomas M. Brown

University of Rome Tor Vergata - Centre for Hybrid and Organic Solar Energy (C.H.O.S.E.)

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Abstract

We present a big leap in performance for indoor photovoltaics by developing flexible perovskite solar cells (PSCs) on ultra-thin flexible glass (FG). We manufactured roll-to-roll ITO-coated FG with excellent transmittance (> 80%) and sheet resistance (13 Ω/square ) and impressive bendability. Rather than resulting in planar structures which worked best for thick rigid glass-based cells, optimized PSCs on the ultrathin FG incorporate instead a mesoporous scaffold over thin SnO2 compact layers that significantly contributed to the achievement of breakthrough power conversion efficiencies (PCEs) of 20.6% (16.7 m W cm-2 power density), and 22.6% (35.0 m W cm-2) under 200 and 400 lx LED illumination respectively. These represent the highest reported for any existing flexible photovoltaic technology tested in indoors, surpassing by a huge 60-90% margin the prior best-performing flexible PSCs, as a result of significantly lower recombination currents and series resistances, higher fill factors and shunt resistances. Ultra-thin glass flexible PSCs can become the key enabling technology for the indoor electronics of the future, being lightweight, conformable and highly efficient.

Keywords: Ultra-thin flexible glass, perovskite solar cells, indoor photovoltaics, roll-to-roll sputtering, low temperature solution processing, LED illumination

Suggested Citation

Castro-Hermosa, Sergio and Lucarelli, Giulia and Top, Michiel and Fahland, Matthias and Fahlteich, John and Brown, Thomas M., Perovskite Photovoltaics on Roll-to-Roll Coated Ultra-Thin Glass as Exceptional Flexible Power-Generator for Indoors. CR-PHYS-SCI-D-19-00049. Available at SSRN: https://ssrn.com/abstract=3517536 or http://dx.doi.org/10.2139/ssrn.3517536
This is a paper under consideration at Cell Press and has not been peer-reviewed.

Sergio Castro-Hermosa

University of Rome Tor Vergata - Centre for Hybrid and Organic Solar Energy (C.H.O.S.E.) ( email )

Italy

Giulia Lucarelli

University of Rome Tor Vergata - Centre for Hybrid and Organic Solar Energy (C.H.O.S.E.) ( email )

Italy

Michiel Top

Fraunhofer Institute for Organic Electronics, Electron Beam and Plasma Technology FEP ( email )

Germany

Matthias Fahland

Fraunhofer Institute for Organic Electronics, Electron Beam and Plasma Technology FEP ( email )

Germany

John Fahlteich

Fraunhofer Institute for Organic Electronics, Electron Beam and Plasma Technology FEP ( email )

Germany

Thomas M. Brown (Contact Author)

University of Rome Tor Vergata - Centre for Hybrid and Organic Solar Energy (C.H.O.S.E.) ( email )

Italy

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