Issue 8, 2024

Highly stable semitransparent solar cell employing graphene/WS2/LaVO3 vertical-heterostructure

Abstract

Semi-transparent (ST) solar cells are attracting a lot of attention among researchers as they can effectively utilize solar energy in various fields such as building-integrated solar power generation and portable solar chargers. Here, we introduce an ST solar cell composed of triethylenetetramine (TETA)-doped graphene (Gr), WS2, and LaVO3. The device not only harvests solar energy thanks to its high light absorption in the ultraviolet-visible range but is also translucent due to its thin film composition. The photovoltaic parameters and average visible transmittance (AVT) of TETA-Gr/WS2/LaVO3 solar cells are highly dependent on the LaVO3 film thickness (t). Considering the correlation between efficiency and visual effects, the device has power conversion efficiency (PCE) of 5.07% and 35% AVT at t = 200 nm, suggesting that it is suitable for ST solar cells. To maximize the translucent properties of the device, the PCE of the device was further improved to 5.64% by using an Al reflective mirror. The durability of the cell was confirmed to maintain 91 and 84% of the original PCE even under continuous illumination of 1 Sun at 60 °C temperature (Ta) and 30% relative humidity (RH) and 80 °C Ta/50% RH for 1000 h.

Graphical abstract: Highly stable semitransparent solar cell employing graphene/WS2/LaVO3 vertical-heterostructure

Supplementary files

Article information

Article type
Paper
Submitted
19 Sep 2023
Accepted
19 Jan 2024
First published
23 Jan 2024
This article is Open Access
Creative Commons BY license

J. Mater. Chem. C, 2024,12, 2843-2848

Highly stable semitransparent solar cell employing graphene/WS2/LaVO3 vertical-heterostructure

D. H. Kim, D. H. Shin, D. H. Jung, S. D. Oh, E. J. Kim and H. Lee, J. Mater. Chem. C, 2024, 12, 2843 DOI: 10.1039/D3TC03411A

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