Fig. 3: Device structure and photovoltaic performance.
From: Revealing composition and structure dependent deep-level defect in antimony trisulfide photovoltaics

a, b Cross-sectional SEM image and corresponding device configuration of Sb2S3 solar cells. c J–V characteristics of the optimal Sb-rich and S-rich Sb2S3 devices under standard one Sun illumination. d EQE spectra of the optimized Sb-rich and S-rich Sb2S3-based devices.