Letian Dou Group

Kang’s work entitled “Suppressing phase disproportionation in quasi-2D perovskite light-emitting diodes” has been published in Nature Communications. Congratulations!

We demonstrate that extending the π-conjugation length and increasing the cross-sectional area of the organic semiconducting ligand enables perovskite thin films with dramatically suppressed ion transport, narrowed phase distributions, reduced defect densities, and enhanced radiative recombination efficiencies. Consequently, we achieved efficient and stable deep-red light-emitting diodes with a peak EQE of 26.3% and a half-life of ~220 h under a constant current density of 0.1 mA/cm². Read the story here.

Blake’s work entitled “Amine-Thiol/Selenol Chemistry for Efficient and Stable Perovskite Solar Cells” has been published in J. Phys. Chem. C as part of The Journal of Physical Chemistry virtual special issue “Early-Career and Emerging Researchers in Physical Chemistry”. Congratulations! Read the story here.

The group warmly welcomes a new visiting undergrad student joining us. Devansh Drolia is a senior chemical engineering student in Birla Institute of Technology and Science (BITS) Pilani. Devansh will work on fabrication and characterization perovskite solar cells. Welcome to the group!

The group warmly welcomes a new postdoc fellow Dr. Chenjian Lin joining us. Chenjian received his PhD in Physical / Organic Chemistry from Northwestern University with Prof. Michael Wasielewski. Chenjian will work on synthesis of novel OSiPs and heterostructures. Welcome to the group. Look forward to working together!

Jee receives prestigious Bilsland Dissertation Fellowship from the Graduate School of Purdue University. Congratulations!

Dr. Dou is selected for the 2022 Waterloo Institute for Nanotechnology (WIN) Rising Star in Nanoscience and Nanotechnology award. The institute, located at the University of Waterloo, has recognized emerging leaders from around the globe whose research aligns with the institute’s thematic areas and the United Nation’s Sustainable Development Goals (UN SDGs) since 2018. Congratulations! Read Purdue news release here.

Dr. Dou is again recognized as a Highly Cited Researcher 2022 in Cross Field by Web of Science (Clarivate Analytics).

Jeonghui Kim joins our group as a first-year graduate student. Jeonghui receives her BS and MS in Chemical Engineering from Inha University. She is interested in both halide perovskite and polymer materials. Welcome to the group!

Yuanhao passes his PhD qualifier exam. Congratulations!

Zitang (Tim)’s work entitled “Side-Chain Control of Topochemical Polymer Single Crystals with Tunable Elastic Modulus” has been published in Angew. Chem. Int. Ed. Congratulations!

In this work, we report a systematic study on the side chain functionalization of the bis(indandione) derivative system that can be polymerized under visible light. Precisely engineered side chains help organize the monomer crystals in a one-dimensional fashion to facilitate polymerization and improve mechanical properties. Read the story here.