• Anomalous Current Steps in 3D Graphene Electrochemical Systems at Room Temperature

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06/12/2024 by   

Metadata

Document Title

Anomalous Current Steps in 3D Graphene Electrochemical Systems at Room Temperature

Author

Srichan C., Danvirutai P., Tuantranont A.

Affiliations

School of Materials Science and Innovation, Faculty of Science, Mahidol University, Nakhon Pathom, 73170, Thailand; National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency, Pathum Thani, 12120, Thailand; 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; Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand; National Metal and Materials Technology Center (MTEC), National Science and Technology Development Agency, Pathum Thani, 12120, Thailand; Synchrotron Light Research Institute (Public Organization), Nakhon Ratchasima, 30000, Thailand; 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

Type

Article

Source Title

iScience

ISSN

25890042

Year

2024

Volume

27

Issue

4

Open Access

All Open Access, Gold

Publisher

Elsevier Inc.

DOI

10.1016/j.isci.2024.109306

Abstract

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. ? 2024 The Authors

License

CC BY

Rights

Authors

Publication Source

WoS

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