Advanced Optoelectronics Materials Lab

Many congratulations to Sajid Saikia Ghosh and Angshuman Nag for publishing 's recent work based on visible and near infrared emission of double perovskite in Angewandte Chemie International Edition. An interesting application like non invasive food inspection using pcLED made out of it, has been demonstrated.

https://doi.org/10.1002/anie.202307689

The article had been highlighted in the article mentioned below.

https://onlinelibrary.wiley.com/page/journal/15213773/homepage/press/202331press.html

Broad Dual Emission by Codoping Cr3+ and Bi3+ in Cs2Ag0.6Na0.4InCl6 Double Perovskite Codoping Cr3+ and Bi3+ in Cs2Ag0.6Na0.4InCl6 double perovskite combines and electronic transitions to develop a single material showing broad near infrared (NIR) and white light emission. The bro...

Had a great evening all together at 🌹🌸.. Congrats to Aparna and Srijita for joining the group,
Congrats Angshuman for being selected as a silver medalist,
Congrats to whole group for getting an "Our lab" finally.
Last but not the least, the celebration included a small tribute to all the men around us on International Men's Day!

Many congratulations to Dr. Tariq Sheikh, Shabnum Maqbool, Pariksh*t Rajput, Dr. Pankaj Mondal and Dr. Angshuman Nag for very recent publication in Chem comm. The work describes temperature controlled unusual optical behaviour of organic-inorganic hybrid halide chiral perovskite.
The link is as below,

Effect of Chirality on the Optical Properties of Layered Hybrid Perovskite R- and S-α-Methylbenzylammonium Lead Iodide The introduction of chirality in layered hybrid perovskites breaks the symmetry of their inorganic sub-lattices. Consequently, they show intriguing linear and non-linear optical properties. Here we explore the effect of chirality on the excitonic photoluminescence of chiral (R- and S-α-MBA)2PbI4 (M...

Here goes an insightful review article by Karamjyoti Panigrahi and Angshuman Nag, published in Journal of Physical Chemistry C. This article highlights why phosphors struggle to become potential candidate in phosphor converted white light emitting diodes even though they have high photoluminescence quantum yield. Many congraulations to both of the authors. The link is as below:

Challenges and Strategies to Design Phosphors for Future White Light Emitting Diodes Phosphor-converted white-light-emitting diodes (pc-WLEDs) are a commercially successful product for energy-efficient illumination. A large number of reported phosphors exhibit high photoluminescence efficiency but struggle in pc-WLED applications. So what kind of phosphors are required to upgrade th...