This paper presents a method for creating radiative and stable perovskite photovoltaic devices by designing a multiple quantum well structure with long organic spacers. The researchers achieved high photovoltaic efficiency (26.0% in-lab, 25.2% certified) and electroluminescence quantum efficiency (19.7% at peak, 17.8% at 1-sun equivalent condition). The devices maintained high efficiency for over 1000 hours of operation and >2 years of storage due to stable crystallinity of the oleylammonium-based quantum wells. This approach enhances the photon recycling process, leading to improved performance.
Publisher
Nature Communications
Published On
May 28, 2024
Authors
Kyung Mun Yeom, Changsoon Cho, Eui Hyuk Jung, Geunjin Kim, Chan Su Moon, So Yeon Park, Su Hyun Kim, Mun Young Woo, Mohammed Nabaz Taher Khayyat, Wanhee Lee, Nam Joong Jeon, Miguel Anaya, Samuel D. Stranks, Richard H. Friend, Neil C. Greenham, Jun Hong Noh
Tags
perovskite photovoltaics
quantum well structure
photovoltaic efficiency
electroluminescence
photon recycling
stability
oleylammonium
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