405 nm ultraviolet photodetector based on tungsten disulphide thin film grown by drop casting method

• Main Authors: Ahmad, Harith, Rashid, Haroon
• Format: Article
• Published: Taylor & Francis 2019
• Subjects: QC Physics
• Online Access: http://eprints.um.edu.my/24324/; https://doi.org/10.1080/09500340.2019.1682207

In this work, a tungsten disulphide or WS2 based heterojunction photodetector device is fabricated on top of Si substrate by simple drop casting. Raman shifts are observed at 350.16 and 419.36 cm−1, confirming the successful growth of the WS2 and the non-stoichiometric WS2 layers which are verified...