Dr. Mohite presented his work on “The Rise of 2D halide perovskites” in the Symposium X of Spring MRS 2022!

Dr. Mohite spoke about the work in the lab over the past five years on 2D-HaPs ranging from the fundamental light-induced structural behaviors, and solvation dynamics to control homogeneity of layer thickness, novel photo-physical behaviors, and charge transport and their role in the high-efficiency optoelectronic device, with technologically relevant durability. He also presented key challenges…

Congratulations!! First year PhD student Jessica Persaud is the latest recipient of NSF GRFP 2022!

Jessica is one of the 38 students from Rice who were awarded NSF GRFP 2022. She is a first-year Ph.D. student in the Chemical and Biomolecular Engineering department and will work on 3D and 3D-2D halide perovskite heterostructures for photovoltaic and other optoelectronic devices. https://news.rice.edu/news/2022/nsf-awards-38-graduate-research-fellowships-rice-students…

Graduate students Austin, Bin, and Hao present their work at the Spring MRS 2022 conference in Hawaii !!

4th-year Ph.D. student Austin presented his team’s work on unassisted water splitting using halide perovskite photoelectrochemical reactors. 4th year Ph.D. student Bin presented his paper’s work on Light-induced interlayer contraction in two-dimensional halide perovskites. 4th year Ph.D. student Hao presented his work on visualizing Light induced ultrafast lattice ordering using ultrafast electron diffraction….

Congratulations Andrew and Bin on their work on “Interstitial Nature of Mn2+ Doping in 2D Perovskites”

Andrew Torma and Wenbin Li, along with our collaborators at INSA Rennes, AFRL and ANL show that doping Mn2+ into the perovskite structure results in a lattice expansion which contrasts with the predicted contraction expected to arise from the B-site metal substitution, thus implying that Mn2+ does not replace the Pb2+ sites. This behavior was observed by performing…

Congratulations Bin and Siraj on their new publication “Light-activated interlayer contraction in two-dimensional perovskites for high-efficiency solar cells”

Bin and Siraj along with our collaborators Dr. Jacky Even, Dr. Mercouri G. Kanatzidis, Dr. Jean-Christophe Blancon report that continuous light illumination leads to >1% contraction in the out-of-plane direction in two-dimensional hybrid perovskites, which is reversible and strongly dependent on the specific superlattice packing.   The onset of the light-induced contraction is synchronized to…

Congratulations Siraj on his new publication “High-phase purity two-dimensional perovskites with 17.3% efficiency enabled by interface engineering of hole transport layer”

Siraj Sidhik and Yafei Wang have successfully achieved High-phase purity 2D perovskite films with near-perfect vertical orientation using Lithium doped nickel oxide as the hole transport layer. They demonstrate that 2D PSCs with Li-doped NiOX exhibit excellent photostability, with T99 = 400 h at 1 sun and T90 of 100 h at 5 suns measured at a relative humidity of…

Synthesis of a new stable low-D perovskitoid using zwitterion cysteamine linker

Dr. Aditya D. Mohite, Dr. Satishchandra Ogale, Dr. Mukherjee, and Dr. Chakraborty have published a collaborative work on the synthesis of a novel stable organic-inorganic perovskitoid material (a perovskite like hybrid-halide structure) using zwitterion cysteamine linker and demonstrated crystal-crystal transformation to Ruddlesden-Popper phase. They also demonstrate the application of the perovskitoid yellow phase by using…

A new phase-selective memory seeds method to fabricate high-efficiency phase pure 2D perovskite films!

Dr. Siraj Sidhik, Wenbin Li have developed a new “phase-selective” memory seeds method to fabricate 2D perovskite thin films with homogenous layer thickness (phase purity). The phase-selective method involves the dissolution of single-crystalline powders with a homogeneous perovskite layer thickness in desired solvents to fabricate thin films. The study is published in Advanced Materials. Photovoltaic devices…

A new application of halide perovskites: Understanding Photoelectric effects in Halide Perovskites

Dr. Mohite, Dr. Jean Christophe, Dr. Even, Dr. Kanatzidis, Dr. Ajayan, and Los Alamos National Lab, have published a new collaborative work on the producing highly efficient photoelectric effect in halide perovskites for regenerative electron sources.The article reports efficient, regenerative, and low-cost electron sources based on solution-processed halide perovskites thin films when they are excited…