Self-assembly of perovskite nanocrystals

Progress in Materials Science Elsevier 129 (2022) 100975

Authors:

Atanu Jana, Abhishek Meena, Supriya A Patil, Yongcheol Jo, Sangeun Cho, Youngsin Park, Vijaya Gopalan Sree, Hyungsang Kim, Hyunsik Im, Robert A Taylor

Abstract:

The self-assembly phenomenon plays a significant role in atomic, molecular, and biological self-assemblies. This phenomenon has also been found in colloidal nanocrystals (NCs). Self-assembly of colloidal NCs into superstructures is a flexible and promising approach for manipulating nanometre-sized particles and exploiting physical and chemical properties that are distinct from both individual nanoparticles and bulk assemblies. The development of superlattices (SLs) of colloidal perovskite NCs through self-assembly has recently attracted remarkable attention; it is quickly developing as a new frontier in nanotechnology. This review presents the different driving forces, crucial factors for self-assembly of perovskite NCs, recent developments in the synthesis, and properties of self-assembled colloidal perovskite NCs. We also discuss the formation of various SLs from perovskite NCs with different morphologies. Finally, we shed light on multiple challenges in developing numerous perovskite SLs for optoelectronic devices.

Perovskite: Scintillators, direct detectors, and X-ray imagers

Materials Today Elsevier 55 (2022) 110-136

Authors:

Atanu Jana, Sangeun Cho, Supriya A Patil, Abhishek Meena, Yongcheol Jo, Vijaya Gopalan Sree, Youngsin Park, Hyungsang Kim, Hyunsik Im, Robert A Taylor

Abstract:

Halide perovskites (HPs) are used in various applications, including solar cells, light-emitting diodes, lasers, and photodetectors. These materials have recently received a great deal of attention as high-energy radiation detectors and scintillators due to their excellent light yield, mobility-lifetime product (µτ), and X-ray sensitivity. In addition, due to their solution-processability and low cost, perovskite materials could be used to produce thick perovskite films across wide areas, allowing for low-dose X-ray imaging. Perovskite-based scintillators and detectors could eventually replace commercialized products like thallium‐doped cesium iodide (CsI:Tl) and amorphous silicon (Si). Here, we review all of the key properties of HPs, the relevant terminology necessary for radiation detection and scintillation, the physical mechanisms underlying their operation, the fabrication process, and perovskite crystals and thin-films of varying dimensionality used for high-energy radiation detection. We also cover the critical issues and solutions that HPs as detectors, scintillators, and imagers face.

1-nm linewidth room temperature single-photon source from optical microcavity-embedded CsPbI3 perovskite quantum dots

(2022)

Authors:

Tristan Farrow, Amit Dhawan, Ashley Marshall, Alexander Ghorbal, Wonmin Son, Henry Snaith, Jason Smith, Robert Taylor

A precision method for integrating shock sensors in the lining of sports helmets by additive manufacturing

IEEE Sensors Letters, DOI: 10.1109/LSENS.2022.3205249

Authors:

A. Xhameni, R. Cheng, T. Farrow*

Abstract:

An optimized method for reproducible doping of DBT molecules in anthracene crystal for spectroscopic applications

In Preparation

Authors:

S. Jia, G. Ying, V. Osokin, R.A. Taylor and Tristan Farrow*

Abstract: