Author: LetianDou

The group warmly welcomes a new postdoc fellow Dr. Pengfei Wu joining us. Pengfei received his PhD in Polymer Chemistry from Hokkaido University in Japan with Prof. Tamaki Nakano. Pengfei will work on synthesis of novel chemically recyclable polymers and polymer single crystals. Welcome to the group. Look forward to working together!

Dr. Dou was selected to receive 2023 College of Engineering Faculty Excellence Award for Early Career Research. Big thank to all students, mentors, and collaborators! Read ChE news release here.

Sheng-Ning Hsu successfully defended his thesis today! — Forth PhD in our group. Big congratulations! Sheng-Ning is heading to First Solar in Ohio as a process engineer. Thank you for your hard work over the years with Boudouris and Dou groups. Best of luck in your future endeavors!

Jiaonan and Ke’s work entitled “Tailoring Molecular‐Scale Contact at Perovskite/Polymeric Hole Transporting Material Interface for Efficient Solar Cells” has been published in Advanced Materials. Congratulations!

Poly(triaryl amine) (PTAA) is a promising HTL for perovskite solar cells; however, the hydrophobicity of PTAA causes problematic interfacial contact with perovskite, limiting the device performance to less than 22%. In this work, we successfully constructed a uniform two-dimensional (2D) perovskite interlayer with conjugated ligands 4Te, between three-dimensional (3D) perovskites and PTAA. Perovskite/PTAA interfacial adhesion was significantly improved and a PCE of 23.7% was achieved. Unencapsulated devices exhibited both superior thermal and moisture stability. Read the story here.

High school student Raunak Dani is selected to represent Indiana as a state at the International Science and Engineering Fair (ISEF) in Dallas, Texas this May. Congratulations!

We welcome a new visiting postdoc Dr. Limei Wang from Shenzhen University to join us. Dr. Wang recived her PhD in Chemical Engineering and Technology from Xiamen and Yanshan University and she is an expert on nanomaterials and photocatalysts. Welcome to the group and look forward to working together!

Wenhao’s invited perspective article entitled “Light-Emitting Organic Semiconductor-Incorporated Perovskites: Fundamental Properties and Device Applications” has been published in J. Phys. Chem. Lett. Congratulations! Read the story here.

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 and Purdue News Release 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!