Cs and Br tuning to achieve ultralow-hysteresis and high-performance indoor triple cation perovskite solar cell with low-cost carbon-based electrode
Ladda Srathongsian,
Anusit Kaewprajak,
Atittaya Naikaew,
Chaowaphat Seriwattanachai,
Napan Phuphathanaphong,
Anuchytt Inna,
Thana Chotchuangchutchaval,
Woraprom Passatorntaschakorn,
Pisist Kumnorkaew,
Somboon Sahasithiwat,
Duangmanee Wongratanaphisan,
Pipat Ruankham,
Ratchadaporn Supruangnet,
Hideki Nakajima,
Pasit Pakawatpanurut,
Pongsakorn Kanjanaboos
Affiliations
Ladda Srathongsian
School of Materials Science and Innovation, Faculty of Science, Mahidol University, Nakhon Pathom 73170, Thailand
Anusit Kaewprajak
National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency, Pathum Thani 12120, Thailand
Atittaya Naikaew
School of Materials Science and Innovation, Faculty of Science, Mahidol University, Nakhon Pathom 73170, Thailand
Chaowaphat Seriwattanachai
School of Materials Science and Innovation, Faculty of Science, Mahidol University, Nakhon Pathom 73170, Thailand
Napan Phuphathanaphong
School of Materials Science and Innovation, Faculty of Science, Mahidol University, Nakhon Pathom 73170, Thailand
Anuchytt Inna
School of Materials Science and Innovation, Faculty of Science, Mahidol University, Nakhon Pathom 73170, Thailand
Thana Chotchuangchutchaval
Center of Sustainable Energy and Engineering Materials (SEEM), College of Industrial Technology, King Mongkut’s University of Technology North Bangkok, Bangkok 10800, Thailand; Department of Mechanical Engineering Technology, College of Industrial Technology, King Mongkut’s University of Technology North Bangkok, Bangkok 10800, Thailand
Woraprom Passatorntaschakorn
Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
Pisist Kumnorkaew
National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency, Pathum Thani 12120, Thailand
Somboon Sahasithiwat
National Metal and Materials Technology Center (MTEC), National Science and Technology Development Agency, Pathum Thani 12120, Thailand
Duangmanee Wongratanaphisan
Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
Pipat Ruankham
Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
Ratchadaporn Supruangnet
Synchrotron Light Research Institute (Public Organization), Nakhon Ratchasima 30000, Thailand
Hideki Nakajima
Synchrotron Light Research Institute (Public Organization), Nakhon Ratchasima 30000, Thailand
Pasit Pakawatpanurut
Department of Chemistry and Center of Sustainable Energy and Green Materials, Faculty of Science, Mahidol University, Bangkok 10400, Thailand; Center of Excellence for Innovation in Chemistry (PERCH CIC), Ministry of Higher Education, Science, Research and Innovation, Bangkok 10400, Thailand
Pongsakorn Kanjanaboos
School of Materials Science and Innovation, Faculty of Science, Mahidol University, Nakhon Pathom 73170, Thailand; Center of Excellence for Innovation in Chemistry (PERCH CIC), Ministry of Higher Education, Science, Research and Innovation, Bangkok 10400, Thailand; Corresponding author
Summary: With high efficacy for electron-photon conversion under low light, perovskite materials show great potential for indoor solar cell applications to power small electronics for internet of things (IoTs). To match the spectrum of an indoor LED light source, triple cation perovskite composition was varied to adjust band gap values via Cs and Br tuning. However, increased band gaps lead to morphology, phase instability, and defect issues. 10% Cs and 30% Br strike the right balance, leading to low-cost carbon-based devices with the highest power conversion efficiency (PCE) of 31.94% and good stability under low light cycles. With further improvement in device stack and size, functional solar cells with the ultralow hysteresis index (HI) of 0.1 and the highest PCE of 30.09% with an active area of 1 cm2 can be achieved. A module from connecting two such cells in series can simultaneously power humidity and temperature sensors under 1000 lux.
