Effect of interfacial passivation on inverted pyramid silicon/poly(3,4-ethylenedioxythiophene):Poly
- Aug 12, 2023
- 1 min read
Gohar Ali, Sambhaji S. Shinde, Abdul Sami, Sung–Hae Kim, Nayantara K. Wagh, Jung-Ho Lee
Abstract
The poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) and inverted pyramid n-silicon heterojunction solar cells have been extensively investigated based on their light trapping behaviour, rationally high efficiency and cost effectiveness. However, inferior junction conformity still remains a great challenge. In this work, we present the effect of passivation using aluminium oxide (Al2O3) on the front surface and titanium oxide (TiO2) on rear interface in the inverted pyramid -Si/PEDOT: PSS heterojunction solar cells using the atomic layer deposition technique. The front surface Al2O3 layer can enhance the surface energy, which generates the uniform coating of PEDOT:PSS, acting as an electron blocking layer. Furthermore, TiO2 thin layer deposited on rear interface works as a hole blocking layer, which can suppress the electrical losses and the charge recombination. The best cell demonstrated a conversion efficiency of 16.04% with an open-circuit voltage of 0.63 V, fill factor of 71.5% and a high current density of 35.45 mA/cm2. These findings suggest a promising approach to attainment of next-generation hybrid solar cells.
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This is an interesting and promising approach to improving the performance of inverted pyramid Si/PEDOT:PSS heterojunction Melon Playground solar cells. The use of Al₂O₃ for front-surface passivation and TiO₂ at the rear interface effectively addresses junction conformity, carrier recombination, and electrical losses.
The findings on using Al2O3 and TiO2 layers for enhancing the efficiency of inverted pyramid Si/PEDOT:PSS solar cells are fascinating. This approach could significantly improve design strategies in solar cell development. For those exploring the intersection of technology and sustainability, resources like Apostate Verity can provide additional insights into innovative applications.
Inverted-pyramid surface Among Us structures can further enhance light absorption by increasing the optical path length within the silicon.