Cs and Br tuning to achieve ultralow-hysteresis and high-performance indoor triple cation perovskite solar cell with low-cost carbon-based electrode

• DOI: 10.1016/j.isci.2024.109306
• Publication Date: 2024-02-22T08:46:37Z
• Authors: Ladda Srathongsian; Anusit Kaewprajak; Atittaya Naikaew; Chaowaphat Seriwa...; Napan Phuphathana...; Anuchytt Inna; Thana Chotchuangc...; Woraprom Passator...; Pisist Kumnorkaew; Somboon Sahasithiwat; Duangmanee Wongra...; Pipat Ruankham; Ratchadaporn Supr...; Hideki Nakajima; Pasit Pakawatpanurut; Pongsakorn Kanjan...
• Keywords: Hysteresis; Perovskite solar cell; Carbon fibers

With high efficacy for electron-photon conversion under low light, perovskite materials show great potential indoor solar cell applications to power small electronics internet of things (IoTs). To match the spectrum an LED light source, triple cation composition was varied adjust band gap values via Cs and Br tuning. However, increased gaps lead morphology, phase instability, defect issues. 10% 30% strike right balance, leading low-cost carbon-based devices with highest efficiency (PCE) 31.94% good stability cycles. further improvement in device stack size, functional cells ultralow hysteresis index (HI) 0.1 PCE 30.09% active area 1 cm2 can be achieved. A module from connecting two such series simultaneously humidity temperature sensors 1000 lux.