Detail publikace

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.

Originální název

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

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.

Klíčová slova

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

Autoři

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.

Vydáno

26. 7. 2021

Nakladatel

AMER CHEMICAL SOC

Místo

WASHINGTON

ISSN

2574-0962

Periodikum

ACS APPLIED ENERGY MATERIALS

Ročník

Číslo

Stát

Spojené státy americké

Strany od

6445

Strany do

6453

Strany počet

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"
}