Lead Iodide Microcrystals in Carbon Composite Matrix for Low Power Photodetectors
2017; Wiley; Volume: 2; Issue: 34 Linguagem: Inglês
10.1002/slct.201701813
ISSN2365-6549
AutoresSreejith P. Madhusudanan, Orsu Vamsi Krishna, Kallol Mohanta, Sudip K. Batabyal,
Tópico(s)Quantum Dots Synthesis And Properties
ResumoAbstract Lead iodide (PbI 2 ) microcrystals based photodetector were developed by a simple printing method. Carbon composite paste was fabricated by homogeneous mixing of PbI 2 microcrystals, commercial graphite powder, and activated carbon. Composite carbon paste was printed on top of thermally deposited Al electrodes on the glass substrates to fabricate the photodetector. Controlled variation of PbI 2 loading established that 10% PbI 2 in carbon composite is the best candidate for the highest On/Off ratio. The photo generated current was manifested by the defect present in the graphite and the PbI 2 microcrystals interfaces. The effect enables us to develop cost effective printing based photodetector which can work in very low voltage region for low‐power printed electronics.
Referência(s)