Asymmetric TMO-Metal-TMO Structure for Enhanced Efficiency and Long-Term Stability of Si-Based Heterojunction Solar Cells.

ABSTRACT: In this study, we fabricated Si-based heterojunction solar cells (HSCs) with an asymmetric TMO-metal-TMO (TMT) structure using both MoO₃ and V₂O₅ as the hole-selective contacts. Our HSCs offer enhanced long-term stability and effective passivation for crystal defects on the Si sur-face. We analyzed the oxygen vacancy state and surface morphology of the MoO₃- and V₂O₅-TMO thin films using X-ray photoelectron spectroscopy and atomic force microscopy to investigate their passivation characteristics for Si surface defects. From the measured minority carrier lifetime, V₂O₅ revealed a highly improved lifetime (590 μs) compared to that of MoO₃ (122.3 μs). In addition, we evaluated the long-term stab

SUBMITTER: Jung YC 

PROVIDER: S-EPMC10456859 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature