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Lead sulfide colloidal quantum dot photovoltaic cell for energy harvesting from human body thermal radiation

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  • Ghomian, Taher
  • Kizilkaya, Orhan
  • Choi, Jin-Woo

Abstract

In this paper, we present the development of a solution-processed photovoltaic structure designed to convert human body thermal radiation into electricity. An active layer composed of a layer of isopropylamine-capped lead sulfide (PbS) quantum dots (QDs) covered with a layer of lithium chloride (LiCl) on top is sandwiched between a substrate and an aluminum contact. Experimental measurements reveal that the device was sensitive to infrared radiation with energies lower than the optical bandgap energy of the incorporated nanocrystals (Eg = 1.26 eV), allowing one to harvest thermal radiation from a human body. We used a conceptually different approach to harvest this radiation by intentionally introducing mid-gap states to the lead sulfide quantum dots through passivation with isopropylamine and likely enabling a multi-step photon absorption mechanism.

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  • Ghomian, Taher & Kizilkaya, Orhan & Choi, Jin-Woo, 2018. "Lead sulfide colloidal quantum dot photovoltaic cell for energy harvesting from human body thermal radiation," Applied Energy, Elsevier, vol. 230(C), pages 761-768.
    • Handle: RePEc:eee:appene:v:230:y:2018:i:c:p:761-768
    DOI: 10.1016/j.apenergy.2018.09.004
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    References listed on IDEAS

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    Cited by:

    1. Vasileios Kapsalis & Grigorios Kyriakopoulos & Miltiadis Zamparas & Athanasios Tolis, 2021. "Investigation of the Photon to Charge Conversion and Its Implication on Photovoltaic Cell Efficient Operation," Energies, MDPI, vol. 14(11), pages 1-16, May.
    2. Park, Gimin & Kim, Jiyong & Woo, Seungjai & Yu, Jinwoo & Khan, Salman & Kim, Sang Kyu & Lee, Hotaik & Lee, Soyoung & Kwon, Boksoon & Kim, Woochul, 2022. "Modeling heat transfer in humans for body heat harvesting and personal thermal management," Applied Energy, Elsevier, vol. 323(C).
    3. Md Maruf Hossain Shuvo & Twisha Titirsha & Nazmul Amin & Syed Kamrul Islam, 2022. "Energy Harvesting in Implantable and Wearable Medical Devices for Enduring Precision Healthcare," Energies, MDPI, vol. 15(20), pages 1-50, October.
    4. Ghomian, Taher & Mehraeen, Shahab, 2019. "Survey of energy scavenging for wearable and implantable devices," Energy, Elsevier, vol. 178(C), pages 33-49.
    5. Tholl, M.V. & Akarçay, H.G. & Tanner, H. & Niederhauser, T. & Zurbuchen, A. & Frenz, M. & Haeberlin, A., 2020. "Subdermal solar energy harvesting – A new way to power autonomous electric implants," Applied Energy, Elsevier, vol. 269(C).

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