Neutral-Colored Semitransparent Perovskite Solar Cells with Aperture Ratios Controlled via Laser Patterning

Abstract

Aesthetics is just as important as efficiency when it comes to designing solar cells for building-integrated photovoltaic applications such as solar windows, thus recently instigating a great interest in the development of neutral-colored semitransparent solar cells. Organic–inorganic halide perovskites (OIHPs) are of particular interest due to their unique properties as solar cell materials. Here, we demonstrate a laser patterning process of the OIHP film to control aperture ratios, which in turn can produce a neutral color for view. Through careful aperture control and by using indium tin oxide as the top electrode, we are able to fabricate neutral-colored semitransparent OIHP solar cells with high efficiency. Furthermore, we show that the involvement of a LiF interlayer at the OIHP and electron transporting layer interface is necessary, since the LiF interlayer plays a bifunctional role of interface passivation and current flow rectification, in order to more closely simulate an ideal diode. As a result, we successfully demonstrate a high efficiency of 12.83% for a 2.00 cm2 area and 9.30% for a 36.00 cm2 area, while achieving an average visible range transmittance of 21.74%.

High-Performance Semi-Transparent Perovskite Solar Cells with over 22% Visible Transparency: Pushing the Limit through MXene Interface Engineering

“…Figure c summarizes the PCE and AVT of full semi-transparent perovskite devices reported so far (more details are provided in Table S6). ,,,− In the past decade, great progress has been achieved on the development of ST-PSCs, owing to the better understanding of perovskite and deployment of novel transparent electrodes. Early-stage ST-PSCs are mainly composed of MA-based or single halide perovskites, ,, while recent formulations of semi-transparent perovskites have been updated to mixed cation and mixed halide hybrid perovskites to improve the structural stability. ,,, New transparent electrodes, such as SnO 2 and NiO x for the ETL, ,,, and dielectric–metal–dielectric (DMD) electrodes for the HTL, ,, are introduced.…”

“… ,,,− In the past decade, great progress has been achieved on the development of ST-PSCs, owing to the better understanding of perovskite and deployment of novel transparent electrodes. Early-stage ST-PSCs are mainly composed of MA-based or single halide perovskites, ,, while recent formulations of semi-transparent perovskites have been updated to mixed cation and mixed halide hybrid perovskites to improve the structural stability. ,,, New transparent electrodes, such as SnO 2 and NiO x for the ETL, ,,, and dielectric–metal–dielectric (DMD) electrodes for the HTL, ,, are introduced. Our champion device (marked by a star) stands out with a PCE of 14.78% and AVT 22.68% (AVT 800 26.7%), which is among those with the highest efficiencies.…”

Synergy of the transmittance fluctuation factor and absorption selectivity for efficient semitransparent perovskite/organic tandem solar cells with high color-fidelity

“…22–24 Table S1† demonstrates the comprehensive investigations on performances of state-of-the-art single-junction ST-SCs. 17,25–34 These attempts open a path to develop single-junction ST-SCs with balanced photovoltaic performances and optical transmittance. However, single-junction solar cells still suffer from the Shockley–Queisser (S–Q) limitation and color-fidelity, and consequently, it is difficult to further improve their device efficiency at a relatively high AVT.…”