Publication date: 2nd November 2020
Lateral two-terminal MSM (metal-semiconductor-metal) devices provide a model structure to probe and understand the interface and bulk semiconductor processes. These devices come under a category that is explored widely for back-contact solar cells and light-emitting transistors. We systematically probe pristine hybrid perovskite in lateral M1SM2 configuration where M1 and M2 are two different electrode-metals. Specifically, results for methylammonium lead iodide with Au and Al electrodes will be discussed. I(V) measurements, kelvin-probe microscopy, and spatially varying photocurrent were performed for different combinations of M1 and M2 and different inter-electrode distances spanning from (10 mm to 100 mm). A model to explain these observations and results are proposed. Future directions and implications of these studies will be highlighted.