Concentrated perovskite photovoltaics enable minimization of energy loss below 0.5 eV under artificial light-emitting diode illumination
Ji Hyeon Lee
Department of Energy and Materials Engineering and Research Center for Photoenergy Harvesting & Conversion Technology (phct), Dongguk University, Seoul, Republic of Korea
Search for more papers by this authorHyeong Cheol Kang
Department of Energy and Materials Engineering and Research Center for Photoenergy Harvesting & Conversion Technology (phct), Dongguk University, Seoul, Republic of Korea
Search for more papers by this authorCorresponding Author
Jae-Joon Lee
Department of Energy and Materials Engineering and Research Center for Photoenergy Harvesting & Conversion Technology (phct), Dongguk University, Seoul, Republic of Korea
Correspondence
Jae-Joon Lee and Jea Woong Jo, Department of Energy and Materials Engineering and Research Center for Photoenergy Harvesting & Conversion Technology (phct), Dongguk University, 30 Pildong-ro, 1-gil, Jung-gu, Seoul 04620, Republic of Korea.
Email: [email protected] (J.-J. L.) and [email protected] (J. W. J.)
Search for more papers by this authorCorresponding Author
Jea Woong Jo
Department of Energy and Materials Engineering and Research Center for Photoenergy Harvesting & Conversion Technology (phct), Dongguk University, Seoul, Republic of Korea
Correspondence
Jae-Joon Lee and Jea Woong Jo, Department of Energy and Materials Engineering and Research Center for Photoenergy Harvesting & Conversion Technology (phct), Dongguk University, 30 Pildong-ro, 1-gil, Jung-gu, Seoul 04620, Republic of Korea.
Email: [email protected] (J.-J. L.) and [email protected] (J. W. J.)
Search for more papers by this authorJi Hyeon Lee
Department of Energy and Materials Engineering and Research Center for Photoenergy Harvesting & Conversion Technology (phct), Dongguk University, Seoul, Republic of Korea
Search for more papers by this authorHyeong Cheol Kang
Department of Energy and Materials Engineering and Research Center for Photoenergy Harvesting & Conversion Technology (phct), Dongguk University, Seoul, Republic of Korea
Search for more papers by this authorCorresponding Author
Jae-Joon Lee
Department of Energy and Materials Engineering and Research Center for Photoenergy Harvesting & Conversion Technology (phct), Dongguk University, Seoul, Republic of Korea
Correspondence
Jae-Joon Lee and Jea Woong Jo, Department of Energy and Materials Engineering and Research Center for Photoenergy Harvesting & Conversion Technology (phct), Dongguk University, 30 Pildong-ro, 1-gil, Jung-gu, Seoul 04620, Republic of Korea.
Email: [email protected] (J.-J. L.) and [email protected] (J. W. J.)
Search for more papers by this authorCorresponding Author
Jea Woong Jo
Department of Energy and Materials Engineering and Research Center for Photoenergy Harvesting & Conversion Technology (phct), Dongguk University, Seoul, Republic of Korea
Correspondence
Jae-Joon Lee and Jea Woong Jo, Department of Energy and Materials Engineering and Research Center for Photoenergy Harvesting & Conversion Technology (phct), Dongguk University, 30 Pildong-ro, 1-gil, Jung-gu, Seoul 04620, Republic of Korea.
Email: [email protected] (J.-J. L.) and [email protected] (J. W. J.)
Search for more papers by this authorFunding information: Ministry of Science, ICT & Future Planning; Korea government (Ministry of Science and ICT, MSIT); National Research Foundation of Korea (NRF), Grant/Award Numbers: NRF-2016M1A2A2940912, NRF-2019R1F1A1059791
Summary
Artificial light cells (ALCs) are potential energy suppliers for self-powered internet-of-things. Recently, perovskite semiconductors have emerged as promising harvesters for recycling the energy from artificial lights; however, its corresponding ALCs have suffered from high energy loss (Eloss) over 0.6 eV caused by the insufficient trap passivation and the limited splitting of the quasi-Fermi levels under dim light conditions. Here, we achieved highly efficient perovskite ALCs up to 42.1% power conversion efficiency by optimizing the photo-active layer and concentrating light from artificial light-emitting diodes (LEDs). In this work, we modified the perovskite ALCs by composition engineering, interfacial treatment, and thickness control, resulting in the reduced trap density and enhanced light collection. We found that perovskite ALCs under the ×32 concentrated 1000 lx LED afford an improved VOC of 1.10 V with a reduced Eloss of 0.48 eV compared to the devices under nonconcentrated light (VOC = 0.96 V and Eloss = 0.62 eV). More importantly, due to the absences of ultraviolet and infrared wavelengths in artificial LED light sources, the perovskite ALCs have higher stability under concentrated LED illumination than devices under outdoor sunlight.
Open Research
DATA AVAILABILITY STATEMENT
The data that support the findings of this study are available from the corresponding author upon reasonable request.
Supporting Information
| Filename | Description |
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| er7449-sup-0001-Supinfo.docxWord 2007 document , 1.4 MB | Appendix S1. Supporting information. |
Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.
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