Solution-processed TiO2 as a hole blocking layer in PEDOT:PSS/n-Si heterojunction solar cells

Disordered Semiconductors and Photovoltaic Applications

Open Access

Fig. 4

(a) J–V curve of PEDOT:PSS/n-Si solar cells TiO₂ HBLs with different layer thicknesses. (b) EQE for devices with and without a 2-nm-thick TiO₂ HBLs. The inset shows EQE_TiO2/EQE_pristine. (c) 2D map of EQE at 1000 nm and (d) far-infrared EL emission images for devices with and without a 2-nm-thick TiO₂ HBL.

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