Microwave assisted synthesis of SnS nanosheets for fabrication of large area SnS/Si heterojunction. (June 2021)

• Record Type: Journal Article
• Authors: Modi, Krishna H.; Pataniya, Pratik M.; Patel, Vikas; Sumesh, C.K.
• Is Part Of: Solar energy. Volume 221(2021)
• Page Start: 412
• Page End: 417
• Publication Date: 2021-06
• Subjects: SnS nanosheets -- Microwave assisted technique -- SnS/Si heterojunction -- Photodetector; Solar energy -- Periodicals; Solar engines -- Periodicals; 621.47
• DOI: 10.1016/j.solener.2021.04.061
• Languages: English
• ISSNs: 0038-092X

Abstract

Highlights: We reported the green synthesis of 2D-SnS nanosheets by microwave assisted technique. SnS/Si heterojunction shows current rectification with ideality factor of 1.4. Photoresponsivity of 86.2 mA/W, detectivity of 10 10 Jones and EQE of 16% are realised. Photodetector shows reproducible and stable photoresponse for prolonged time interval of 3600 s. Abstract: Graphene like 2D-semiconductors of IV-VI group have captivated widespread attention in the field of opto-electronics due to their high earth abundant and distinct physical properties. Herein, we report the green synthesis of approach for 2D-SnS nanosheets by microwave assisted solvothermal process. Easy, rapid and high-yield synthesis process produced phase pure and crystalline graphene like SnS nanosheets. Subsequently, highly stable and large area photodetector based on 2D-SnS/3D-Si has been fabricated. Photodetector has shown obvious current rectifying behaviour with ideality factor of 1.4. Owing strong light matter interaction in 2D-SnS, photodetector has demonstrated highly reproducible photoresponse in broad spectral range and fast photoswitching action with response time of 150 ms. Encouragingly, photodetector has shown excellent opto-electronic stability for prolonged illumination for more than 3500 s and reproducible photoswitching for 200 cycles of periodic illumination. Overall, present finding advocates potential in fabrication of high-performance opto-electronics through green synthesis approach.