NDLI: Novel Use of Semiconductive Conjugated Polymer With Optimized Scintillator for Betavoltaic Applications

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Sharma, Ashish Melancon, Justin Bailey, Sheila Zivanovic, Sandra
Copyright Year	2015
Abstract	The ongoing advanced space exploration requires the novel energy sources that can generate power for extreme duration without need of refill. The long duration betavoltaic devices are presented using conjugated polymer with scintillators. The Monte Carlo simulations are used to study the interaction of electron beam with two different scintillators, Cerium doped Yttrium Aluminum Garnet (Ce:YAG) and Thallium doped Cesium Iodide (CsI:Tl). The catholuminescence profiles from simulation showed that CsI:Tl is more-efficient to generate photons when hit by electron beam compared to Ce:YAG. The semiconductive conjugated polymer device stack of ITO/PEDOT:PSS/P3HT:ICBA/Al are then fabricated and tested with Ce:YAG and CsI:Tl scintillators under different electron beam energies. The electrical current is successfully extracted from these betavoltaic devices when illuminated with electron beams. As expected, the betavoltaic devices with CsI:Tl scintillator performed better compared with Ce:YAG. The maximum power conversion efficiency (PCE) of 0.24% is obtained at 10 kV electron beam with CsI:Tl, while PCE in device with Ce:YAG is 0.16%. The short circuit current in devices with CsI:Tl is about 57%, greater than in devices with Ce:YAG. The experimental result showed that output electrical power increased with increase in incident electron beam energy.
File Format	PDF
ISBN	9780791857441
DOI	10.1115/IMECE2015-50739
Volume Number	Volume 6B: Energy
Conference Proceedings	ASME 2015 International Mechanical Engineering Congress and Exposition
Language	English
Publisher Date	2015-11-13
Publisher Place	Houston, Texas, USA
Access Restriction	Subscribed
Subject Keyword	Electron beams Energy resources Simulation Aluminum Circuits Energy conversion Photons Polymers Yttrium Electric current Electricity (physics)
Content Type	Text
Resource Type	Article

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