Highlights

Piezoelectric materials have long been investigated due to their unique characteristic of converting mechanical stress into electrical charges or vice versa.  However they are fragile, difficult to fabricate, and requires post processing. One way to alleviate the drawback is to use 3D prin

Despite rapid progress in the efficiency of organohalide perovskite based solar cells, physical mechanisms underlying their efficient charge separation and slow charge recombination still elude us.

Outcome: We have developed a novel method for the synthesis of graphene quantum dots (GQDs) by using two amino acids, which are non-toxic natural materials containing nitrogen groups for easy surface modification. The synthesis process was easy, efficient and no toxic chemicals were involv

[A] Developed a scalable method to produce graphene-fiber hybrid structures with seamless connections between graphene and fibers. These are produced in situ from aqueous polymer solutions. The surface area and pore diameter of the hybrid structures were measured to be 520 m2g–1 and 10 nm,

T1: Magnetic and Electric Properties with ApplicationsDesigning methods and devices for efficient mutual control of electricity and magnetismDeveloping low-power consumptionWe designed and fabricated Graphite-fiber reinforced copper composite wires to meet the requirements of wire strength

We have developed three-dimensional (3D) nanoachitecture based surface enhnaced Raman spectroscopy (SERS) technology and demonstrated that it can be used for the diagnosis of bacteria, virus, Alzheimer’s disease biomarkers, cancer, explosives and toxic chemicals.Our 3D technology has the c

Despite rapid progress in the efficiency of organohalide perovskite based solar cells, physical mechanisms underlying their efficient charge separation and slow charge recombination still elude us. In this work, we provide first direct evidence of spontaneous charge separation via first-pr

Outcome: In collaboration with experimental studies at Princeton University we have carried out ab initio calculations to examine the effect of pressure on the topological phase diagram of Pb1-xSnxTe. The calculations reveal that the ferroelectric polarization, which breaks crystal inversi

Perovskite solar cells (PSCs), have shown a remarkable increase in photoconversion efficiency (PCE), from 3.8%  in 2009, to 22.1% in 2016. The good electron transporting and solution processable properties of fullerene derivatives make them the most popular electron transporting materials

Outcome: We have developed a novel method for the synthesis of graphene quantum dots (GQDs) by using two amino acids, which are non-toxic natural materials containing nitrogen groups for easy surface modification. The synthesis process was easy, efficient and no toxic chemicals were involv