silicon solar cells [3] for a high-efficiency tandem application. Therefore, numerous efforts have been made to improve CH 3 NH 3 (MA) or CH(NH 2 ) 2 (FA) based PSCs. For instance, the hole and electron transport layers (HTL and ETL) are modified, [4] an interface layer is inserted for favorable energy level alignment, [5] pre-or post-treatment of the active layer is tested, [6] and antisolvent and stabilizer are added into the perovskite layer. [7] Such optimizations are expected to enhance the light absorption and/or carrier dynamics of the devices. [8] Another relatively simple and versatile method that can enhance the light absorption and manage the carrier transport simultaneously is the utilization of metallic structures in the solar cells, which can confine the electromagnetic (EM) field via the localized surface plasmon resonance (LSPR). When inserted, plasmonic particles can act as effective light-matter interaction centers inside the solar cells and the optical and electric properties of the solar cells can be engineered to increase the PCE. [8c] Tunable metal plasmonic particles have also been applied into PSCs of different device configurations. [9] The contribution of LSPR to the improved PCE is explained primarily using the aspects of the far field or near field, [8a,b,10] wherein the plasmonic particles are considered a second light source or an amplifier of the local electric field. For example, Huang et al. have demonstrated that the Au@Ag nano-cuboids in the different layers of PSCs can increase PCE via LSPR through enhanced light absorption and optimized scattering management. [11] The near-field EM enhancement in the semiconductor near the plasmonic particles has generally been proved theoretically by the Mie theory calculation and finite-difference time-domain (FDTD) simulations. [12] Moreover, the incorporation of plasmonic particles is also claimed to change the carrier dynamics by reducing exciton binding energy, [13] suppressing the electron-hole recombination, [10a,14] and increasing the carrier collection efficiency at the interface. [8c] Nevertheless, the potential adverse effects of integrating plasmonic particles are non-negligible, posing challenges against the plasmonic enhancement. For instance, a high particle density in the active layer can reduce perovskite loading, and the metallic surface may degrade under a high process temperature or corrosive solvent, which causes a detrimental impact on charge transport. [11] Due to this complex effect on the light absorption and charge Plasmonic perovskite solar cells (PSCs) using core−shell type plasmonic particles are designed, which possess the plasmon resonance in the near-infrared range. This can selectively strengthen the interaction of the perovskite layer with low-energy photons. The mesoporous PSCs employing the plasmonic particles have delivered a 10%-15% enhancement of external quantum efficiency in the plasmonic resonance range. This surface-plasmonic effect has been analyzed using complementary techniques, including...
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.