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Tuning the Interfacial Electronic Structure of All-Inorganic Perovskites: Device and Surface Science Approaches
Arramel1, Biplab Ghosh2, Wang Dingguan1, Muhammad Fauzi Sahdan1, Muhammad D. Birowosuto3, Andrivo Rusydi1,4 and Andrew T. S. Wee1,5

1Surface Science Laboratory, Department of Physics, National University of Singapore, 2 Science Drive 3, Singapore 117542

2 Energy Research Institute [at] Nanyang Technological University (ERI[at]N) 50, Nanyang Drive, Singapore 637553

3CINTRA UMI CNRS/NTU/THALES 3288, Research Techno Plaza, 50 Nanyang Drive, Level 6, Border X Block, Singapore 637553

4 Singapore Synchrotron Light Source, National University of Singapore, 5 Research Link, Singapore 1176033

5Centre for Advanced 2D Materials (CA2DM) and
Graphene Research Centre (GRC), National University of Singapore, Singapore 117546, Singapore


Abstract

In this talk we will highlights our recent findings that essentially to achieve a superior physical performance of all-inorganic perovskites. Namely, two representative novel material such as bismuth-based ternary halide and cesium lead bromide have recently gained a lot of attention for an enhanced solar cell applications. However, photovoltaic performances of these devices remain poor, mostly due to their low-dimensional crystal structure and large bandgap. Here, a dynamic hot casting technique to fabricate silver bismuth iodide-based perovskite solar cells under an ambient atmosphere with promising power conversion efficiencies above 2.5% is demonstrated. In addition, Second part of the talk to investigate the interfacial nature across such heterostructures, high-resolution photoemission technique were employed. This work provides a new direction for fabrication of solution-processed lead-free perovskite solar cells with a rapid fabrication strategy irrespective of the processing environment.

Keywords: Perovskites, photovoltaics, x-ray photoemission spectroscopy, power conversion efficiency.

Topic: Smart materials

Link: https://ifory.id/abstract/9QfXWYCrtJ2V

Conference: International Conference on Renewable Energy (ICORE 2019)

Plain Format | Corresponding Author (Arramel Arramel)

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