For heterojunction solar cells with a spike in one of the bands at the junction, intra-band tunneling will enhance the current through the interface. We have incorporated this phenomenon in SCAPS, a publicly available one-dimensional solar cell device simulator. The thermionic-field emission boundary conditions at the interfaces are formulated based on the WKB approximation and we discuss the c...

We investigated photoelectrochemical water splitting properties of Pt-In2S3/CuInS2 photocathodes from near neutral toward basic condition (pH 6, 9, and 13). Half-cell solar-to-hydrogen (HC-STH) of Pt-In2S3/CuInS2 measured under 0.2 M NaH2PO4 was the highest when the pH of the solution was 13 (4.7% at 0.42 V vs. RHE) with a maximum photocurrent density of 16.3 mA cm-2 (at 0 V vs. RHE) and onset ...

Solar-to-Hydrogen Conversion In article number 2202109, Chao Gu, Shi-Kui Han, and co-workers demonstrate an all-in-one strategy for the selective-epitaxial hybridization of unique tripartite semiconducting sulfides, denoted as CuInS2–Cd(In) S–MoS2. The integrated architectures exhibit superior solar-to-hydrogen conversion performance due to their enhanced capabilities solar absorption charge se...