Layer-engineered I-V characteristics of p-Si/WS2 Van der Waals Heterostructure diodeSanni Kapatel, C. K. Sumesh, Pratik Pataniya, G. K. Solanki and K. D. PatelEur. Phys. J. Plus, 132 4 (2017) 191DOI: https://doi.org/10.1140/epjp/i2017-11480-2