Publication detail

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

ZDRAŽIL, L. SERGII, K. LANGER, M. AHMAD, R. POSPÍŠIL, J. ZMEŠKAL, O. ALTOMARE, M. OSVET, A. ZBOŘIL, R. SCHMUKI, P. BRABEC, C. OTYEPKA, M. KMENT, Š.

Original Title

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

Type

journal article in Web of Science

Language

English

Original 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 cm(2) 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 cm(2) LSCs with hypothetical unity PL. These results demonstrate a significant promise held by Bi-doped lead-free PNCs for LSCs.

Keywords

photovoltaics; lead-free perovskites; double perovskites; perovskite nanocrystals; luminescent solar concentrators; Monte Carlo simulations

Authors

ZDRAŽIL, L.; SERGII, K.; LANGER, M.; AHMAD, R.; POSPÍŠIL, J.; ZMEŠKAL, O.; ALTOMARE, M.; OSVET, A.; ZBOŘIL, R.; SCHMUKI, P.; BRABEC, C.; OTYEPKA, M.; KMENT, Š.

Released

26. 7. 2021

Publisher

AMER CHEMICAL SOC

Location

WASHINGTON

ISBN

2574-0962

Periodical

ACS APPLIED ENERGY MATERIALS

Year of study

4

Number

7

State

United States of America

Pages from

6445

Pages to

6453

Pages count

9

URL

https://pubs.acs.org/doi/abs/10.1021/acsaem.1c00360

BibTex

@article{BUT172261,
  author="Lukáš {Zdražil} and Kalytchuk {Sergii} and Michal {Langer} and Razi {Ahmad} and Jan {Pospíšil} and Oldřich {Zmeškal} and Marco {Altomare} and Andres {Osvet} and Radek {Zbořil} and Patrik {Schmuki} and Christoph J. {Brabec} and Michal {Otyepka} and Štěpán {Kment}",
  title="Transparent and Low-Loss Luminescent Solar Concentrators Based on Self-Trapped Exciton Emission in Lead-Free Double Perovskite Nanocrystals",
  journal="ACS APPLIED ENERGY MATERIALS",
  year="2021",
  volume="4",
  number="7",
  pages="6445--6453",
  doi="10.1021/acsaem.1c00360",
  issn="2574-0962",
  url="https://pubs.acs.org/doi/abs/10.1021/acsaem.1c00360"
}