Transparent and Low-Loss Luminescent Solar Concentrators Based on Self-Trapped Exciton Emission in Lead-Free Double Perovskite Nanocrystals

Zdražil L, Kalytchuk S, Langer M, Ahmad R, Pospíšil J, Zmeškal O, Altomare M, Osvet A, Zboril R, Schmuki P, Brabec C, Otyepka M, Kment S (2021)

Publication Type: Journal article, Original article

Publication year: 2021

Journal

ACS Applied Energy Materials American Chemical Society

Original Authors: Lukáš Zdražil, Sergii Kalytchuk, Michal Langer, Razi Ahmad, Jan Pospíšil, Oldřich Zmeškal, Marco Altomare, Andres Osvet, Radek Zbořil, Patrik Schmuki, Christoph J. Brabec, Michal Otyepka, Štěpán Kment

Book Volume: 4

Pages Range: 6445-6453

Issue: 7

DOI: 10.1021/acsaem.1c00360

Abstract

Luminescent solar concentrators (LSCs) are light-harvesting devices that redirect solar light to an edge-attached photovoltaic cell, and thus, they have high potential to be incorporated directly into buildings’ windows to allow for generating electricity. Perovskite nanocrystals (PNCs) are promising materials for LSCs because their enticing optical properties can be engineered to provide a high photoluminescence (PL) quantum yield (QY) and low overlap between absorption and emission spectra. Replacement of toxic, lead-containing perovskites in LSCs by lead-free PNCs, while retaining high optical efficiency of the device, remains the key challenge, which needs to be overcome to build environmentally friendly solar-harvesting platforms. In this work, we use nanocrystals of Bi-doped Cs2Ag0.4Na0.6InCl6 double perovskites with a self-trapped exciton emission to realize for the first time a transparent, low-reabsorption, lead-free perovskite-based LSC. Fabricated 100 cm2 LSCs show an internal optical quantum efficiency of 21.2% with the corresponding internal concentration factor of 2.7. Monte Carlo (MC) ray-tracing simulations identified the loss caused by nonunity PL QY to be the most significant contribution to the overall efficiency loss. The MC simulations also allowed us to estimate the efficiency of 39.4% for 2,500 cm2 LSCs with hypothetical unity PL. These results demonstrate a significant promise held by Bi-doped lead-free PNCs for LSCs.

Authors with CRIS profile

Marco Altomare Lehrstuhl für Werkstoffwissenschaften (Korrosion und Oberflächentechnik) Andres Osvet Institute Materials for Electronics and Energy Technology (i-MEET) Christoph Brabec Institute Materials for Electronics and Energy Technology (i-MEET)

Additional Organisation(s)

Graduiertenkolleg 2495 Energiekonvertierungssysteme: von Materialien zu Bauteilen (Energy Conversion Systems: From Materials to Devices)

Involved external institutions

Palacky University Olomouc / Univerzita Palackého v Olomouci CZ Czech Republic (CZ) Brno University of Technology (BUT) / Vysoké učení technické v Brně (VUT) CZ Czech Republic (CZ)

How to cite

APA:

Zdražil, L., Kalytchuk, S., Langer, M., Ahmad, R., Pospíšil, J., Zmeškal, O.,... Kment, S. (2021). Transparent and Low-Loss Luminescent Solar Concentrators Based on Self-Trapped Exciton Emission in Lead-Free Double Perovskite Nanocrystals. ACS Applied Energy Materials, 4, 6445-6453. https://dx.doi.org/10.1021/acsaem.1c00360

MLA:

Zdražil, Lukáš, et al. "Transparent and Low-Loss Luminescent Solar Concentrators Based on Self-Trapped Exciton Emission in Lead-Free Double Perovskite Nanocrystals." ACS Applied Energy Materials 4 (2021): 6445-6453.

BibTeX: Download