Effect of front surface light trapping structures on the PERC solar cell

Abstract

Properties of the front textured surface shape and anti-reflection coating have a great impact on the performance of solar cells. In this paper, the simulation model of the minimum unit cell structure is established and validated, which is based on the framework of Silvaco software and basic parameters of the standard pyramid textures single crystalline silicon PERC solar cell. The effect of the front surface light trapping structures on cell performance is discussed. It is found that the slightly concave pyramid-like textures can improve the response for short wavelengths and the short-circuit current density of the cell is increased by 0.3 mA/cm 2 , which is improved by 0.80%. In addition, by properly controlling the preparation process of the anti-reflection coating, a gradient-index SiO x N y /Si 3 N 4 double-layer anti-reflection coating (DLARC) can be formed, which can significantly reduce the reflectivity for short wavelengths. And the short-circuit current density of the cell can be increased by 0.32 mA/cm 2 , which is improved by 0.86%. Finally, the optimized slightly concave pyramid-like textures and the SiO x N y /Si 3 N 4 DLARC can improve the photoelectric conversion efficiency of the PERC solar cell by 0.18% and 0.20%, respectively.

A Tunable Electrochemical Strategy toward an All-Inorganic CsPbBr3 Perovskite

“…57−60 Finally, the versality of the whole method has also been tested for different substrates, especially textured substrates that are often used as the upper antireflex layer in solar cells. 61,62 We initially tried to conformally deposit a layer of the perovskite film on a textured crystalline silicon cell by the electrochemical strategy, which illustrates the versatility of the strategy and provides a new idea for the simple preparation of two-terminal perovskite solar cells (as shown in Figure S7).…”

“…In general, this work has shown a strategy to synthesize CsPbBr 3 with an electrochemical substrate (PbO 2 ) that has fewer problems that those of conventional chemical–mechanical methods. Hopefully, it can facilitate relevant research on CsPbBr 3 , a widely applied perovskite due to its own advantages in various fields (solar cells, photodetectors, photocatalysis, lasers, light-emitting diodes, and resistive switching memories). − More importantly, it has shown a high tunability to synthesize perovskites of different contents with different optoelectronic properties, with even wider prospects in different types of applications, such as in two-terminal tandem solar cells, photodetectors in the fields of imaging and optical communication (such as MAPbI 2.55 Br 0.45 ), memories (such as CsPbBrI 2 ), lasers (such as MAPbBr 3 ), etc. − Finally, the versality of the whole method has also been tested for different substrates, especially textured substrates that are often used as the upper antireflex layer in solar cells. , We initially tried to conformally deposit a layer of the perovskite film on a textured crystalline silicon cell by the electrochemical strategy, which illustrates the versatility of the strategy and provides a new idea for the simple preparation of two-terminal perovskite solar cells (as shown in Figure S7).…”

Improved PERC Solar Cell Design by TCAD Simulation

“…(ARC) [7], passivation, degradation, electrical characteristics, recombination and optical losses etc. However, there is still room for improvement in the design of standard PERC cells.…”

Design and parametric optimization of ion-implanted PERC solar cells to achieve 22.8% efficiency: a process and device simulation study

“…Furthermore, n-type PERC solar cells employing an Al front contact with 24.82% efficiency and a nickel front contact with 24.44% efficiency were simulated by Boukortt et al 31,32 Zidi et al 33 reported a 21.47% efficient front surface textured based p-type PERC solar device. Zhou et al 34 examined a 20.9% efficient PERC device using a double layer of antireflection coating (ARC) of the material SiO x N y /Si 3 N 4 .…”

“…Comparison of PV parameters of simulated PERC devices with theoretical PERC performances[31][32][33][34]54,74,75 …”