Research & Development

Korean researchers propose new material for stable, lead free perovskite

A team of scientists from the Korea Advanced Institute of Science and Technology (KAIST) has proposed a gold-based halide perovskite as a material for high efficiency solar cells, which it says could be both more stable and more environmentally friendly to produce than many existing perovskites which scientists are investigating to boost solar efficiency.
Mark Hutchins
By
Mark Hutchins
KAIST’s main campus in Daejeon, South Korea. | Image: Yoo Chung

Scientists from Korea’s KAIST are proposing a new material, Cesium-gold-iodide, or Cs2Au2I6, as an active material in high efficiency thin film solar cells.

The team’s calculations, published in the paper ‘Mixed valence perovskite Cs2Au2I6: A potential material for thin film Pb-free photovoltaic cells with ultrahigh efficiency’ show that this material has a close to ideal band-gap for solar generation, and simulations have shown that a very thin polycrystalline layer would be sufficient to achieve high conversion efficiency.

Theoretical investigations also suggest that, as an entirely inorganic material, Cs2Au2I6 is also more stable than many other perovskites, and also it is lead free, could be said to be more environmentally friendly. The researchers used a multiscale, multiphysics simulation framework, and electromagnetic simulations.

Now, the team plans to move its investigation in two directions simultaneously – applying this material into real PV cells, and theoretical analysis focused on finding other optimal materials for highly efficient solar cells.

Written by

This content is protected by copyright and may not be reused. If you want to cooperate with us and would like to reuse some of our content, please contact: [email protected].

Comments

Liquid redox circulation battery based upon naphthalene diimide attains high capability retention – news
Apr 06, 2023

[…] a research study group from theKorea Advanced Institute of Science and Technology (KAIST) and Pohang University of Science and Technology (POSTECH) in South Korea has actually […]

Reply
Aqueous redox flow battery based on naphthalene diimide achieves high capacity retention | San Francisco Daily Journal
Apr 06, 2023

[…] a research team from the Korea Advanced Institute of Science and Technology (KAIST) and Pohang University of Science and Technology (POSTECH) in South Korea has developed a […]

Reply
‘Footstep tech’ for solar module cleaning – pv magazine International – pv magazine International – Residential Cleaners in London
Oct 15, 2022

[…] from movement.Image: Korea Advanced Institute of Science and Technology (KAIST)Scientists from the Korea Advanced Institute of Science and Technology (KAIST) have used a triboelectric generator (TENG) to develop a cleaning system for PV […]

Reply
‘Footstep tech’ for solar module cleaning – pv magazine International – Scoop Online
Oct 14, 2022

[…] from the Korea Advanced Institute of Science and Technology (KAIST) have used a triboelectric generator (TENG) to develop a cleaning system for PV […]

Reply
‘Footstep tech’ for solar module cleaning – pv magazine International – NewsLive81
Oct 14, 2022

[…] from the Korea Advanced Institute of Science and Technology (KAIST) have used a triboelectric generator (TENG) to develop a cleaning system for PV […]

Reply
The mobility rEVolution: Hybrid lithium-ion battery capable of recharging within a minute – pv magazine International – Two Biker
Aug 17, 2022

[…] diagram of hybrid lithium ion battery and photos of the device.Image: KAISTA research team at the Korea Advanced Institute of Science and Technology (KAIST) has developed a high-energy density, ultrafast rechargeable hybrid lithium-ion battery that […]

Reply
The mobility rEVolution: Hybrid lithium-ion battery capable of recharging within a minute – SOLARINERTIA
Apr 26, 2022

[…] research team at the Korea Advanced Institute of Science and Technology (KAIST) has developed a high-energy density, ultrafast rechargeable hybrid lithium-ion battery that […]

Reply