Gammavoltaic Property of Perovskite Solar Cell Toward the Novel Nuclear Power Generation
Hiroshi Segawa a, Ludmila Cojocaru a, Satoshi Uchida a
Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics
Proceedings of International Conference Asia-Pacific Hybrid and Organic Photovoltaics (AP-HOPV17)
Yokohama-shi, Japan, 2017 February 2nd - 4th
Organizers: Tsutomu Miyasaka and Iván Mora-Seró
Oral, Satoshi Uchida, presentation 097
Publication date: 7th November 2016

Radiovoltaic devices can directly convert high-energy from radio-isotopes to electrical power through the generation and split the electron hole pairs in semiconductors.  Here, in this study, energy harvesting through the gammavoltaic effect of CH3NH3PbI3 perovskite solar cell was examined for aiming the novel nuclear power generation system.  Two radiation sources Co-57 (100kBq, 1.33MeV for Gamma) and Cs-137 (10kBq, 0.66MeV for Gamma) with φ25x4mm disc shape were used for our experiment.  They are commercially available from Japan Radioisotope Association (JRIA).  The working area size of perovskite solar cell was 3x10mm on top of FTO substrate.

The resulting current was monitored by MPPT machine (PV Power Analyzer KV-PA-Pico, SPD Laboratory Inc.) and showed almost double of background noise level, 100nA under the two-piled radiation sources.  Another type of solar cell such as c-Si and QD-PbS was examined but they could not show significant power generation.  The other system having perovskite solar cell and thallium doped CsI crystal scintillator as a light source under the gamma radiation was also examined.  Further detail will be discussed.

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