News

Predicted CaV2O4 as an oxide for electrodes in calcium batteries realized in practice!

28 Feb 2022 by Piero

The group of Prof. Palacín at the Institut de Ciència de Materials de Barcelona, Spain could reproduce our predictions in Lu W., Wang J., Gautam G. S., Canepa P.; Chem. Mater., 33, 5809-5821 (2021) on CaV2O4 as cathode material for Ca-ion batteries.

More information about the novel experimental findings by the Palacín’s group can be found in Energy Storage Materials, 47, 354-364 (2022).

Our Collaborative Work with UNSW (Australia) on the stability of Indium/Lithium and Indium/Tin Alloys with Solid Electrolytes Appears in Chem. Mater.

30 Jul 2021 by Piero

Today, July 30th, Baltej Singh published the exciting results of our research lead by our collaborator Dr. Dipan Kundu in the School of Chemical Engineering at UNSW, Australia.

The manuscript investigates the fundamental electro-chemo-mechanical stabilities of Lithium-Indium and Lithium-Tin alloys of varied Li stoichiometries with sulfide electrolyte based SSBs. The intermetallic electrodes developed through a controlled synthesis and fabrication technique display impressive (electro)chemical stability with Li6PS5Cl as the solid electrolyte and maintain nearly perfect interfacial contact during the electrochemical Li insertion/de-insertion under an optimal stack pressure.

The manuscript can be found here

Big congratulations to Baltej for his achievement!

Congratulations to Mr. Ziliang Wang, who has passed successfully his 2nd oral exam towards his degreeo of PhD!

15 Jul 2021 by Piero

On July 15th, Mr. Ziliang Wang has passed successfully the most important exam towards the fulfillment of his Phd in Materials Science and Engineeing at NUS. Big congratulations Ziliang towards your PhD achievements and success in science.

Most importantly, Ziliang salary now will be increased, which will allow him to pay your dinner.

Tara most recent manuscript gets some great press in a number of outlets!

12 Apr 2021 by Tara

On April 12th, 2021, the research work of Mr. Tara P. Mishra entitled Unlocking the Origin of Compositional Fluctuations in InGaN Light Emitting Diodes and developed by NUS and SMART was has received some press in a number of new outlets, which are:

  • The science behind varying performance of different colored LEDs on phys.org
  • New Method may Lead to More Efficient LEDs by AZO Optics
  • SMART discovers the science behind varying performance of different colored LEDs by ScienceDaily’s
  • Researchers discover the science behind varying performance of different colored LEDs published on www.nanowerk.com
  • New method observes compositional fluctuations in high-indium-content InGaN LEDs by Semiconductor Today

The full manuscript can be found here.

Congratulations to Mr. Tara P. Mishra, who has published his first paper in the Physical Review Materials!

5 Feb 2021 by Piero

On February 5th, the research work of Mr. Tara P. Mishra entitled Unlocking the Origin of Compositional Fluctuations in InGaN Light Emitting Diodes was published in Physical Review Materials. Tara developed a powerful methodology to detect the formation of In clusters in high Indium content InxGa1-xN LEDs quantum wells (QWs). His study showed a direct comparison between the computationally predicted and experimentally observed compositional fluctuations.

Autonomous detection of compositional fluctuations in InxGa1–xN samples.
Autonomous detection of compositional fluctuations in InxGa1-x samples.

He found that although a random alloy model captures the distribution of compositional fluctuations in relatively low In (~18%) content InxGa1-xN QWs, there exists a striking deviation from the model in higher In content (~24 %) QWs. The results highlight a distinct behaviour in carrier localization driven by compositional fluctuations in the low and high In-content InxGa1-xN QWs, which would ultimately affect the performance of LEDs.

The full manuscript can be found here.

Congratulations to Mr. Ziliang Wang, who has passed successfully his 1st oral qualifier exam!

10 Dec 2020 by Piero

On December 10th, Mr. Ziliang Wang has passed successfully his Comprehensive PhD Qualifying Examination (QE II). Big congratulations Ziliang towards your PhD achievements and success in science.

Dr. Zeyu (Jerry) Deng publishes his work on NaSICON electrolytes and electrodes in Chemsitry of Materials

14 Sep 2020 by Jerry

On August 27 2020 Dr. Zeyu (Jerry) Deng published his research work on NaSICON electrolytes and electrodes in Chemsitry of Materials. The title of the manuscript is Phase Behavior in Rhombohedral NaSiCON Electrolytes and Electrodes Check this out here!

Using a repertoire of techniques the care team analyzed the thermodynamic properties of the rhombohedral NaSiCON electrolyte by constructing the Na1+xZr2SixP3-xO12 phase diagram, based on density functional theory calculations, a cluster expansion framework, and Monte Carlo simulations.

Through the computed phase diagram, the care team identified the concentration domains providing the highest Na+-ion conductivity and previously unreported phase-separation behavior across three different single-phase regions. Furthermore, similarities in the phase behavior between Na1+xZr2SixP3-xO12 and other NaSiCON-based monotransition metal electrodes were noted. Our work is an important addition in understanding the thermodynamics of NaSiCON-based materials and in the development of inexpensive Na-ion batteries.

This research was funded by the Singapore National Research Foundation (NRF) under the NRF Fellowship Scheme and the ANR-NRF grant in colalboration with the LRCS Université de Picardie Jules Verne laboratory.

Piero nominated as NUS innovator

27 Jul 2020 by Piero

On July 28 2020 Piero was mentioned a NUS innovator on the NUS web-site as a result of his recently awarded NRF Fellowship together with three other colleagues from NUS. Check this out on NUS News!

The Singapore National Research Foundation (NRF) Fellowship Scheme is a competitive programme that seeks to attract and recruit outstanding young scientists from around the world to conduct independent research in Singapore.