US 12,442,103 B2
Nano and quantum sized particles from atomically thin transition metal dichalcogenides and related methods
Deep Jariwala, Philadelphia, PA (US); Eric Andrew Stach, Swarthmore, PA (US); and Pawan Kumar, Philadelphia, PA (US)
Assigned to The Trustees of the University of Pennsylvania, Philadelphia, PA (US)
Filed by The Trustees of the University of Pennsylvania, Philadelphia, PA (US)
Filed on Feb. 18, 2022, as Appl. No. 17/674,964.
Claims priority of provisional application 63/151,353, filed on Feb. 19, 2021.
Prior Publication US 2022/0325432 A1, Oct. 13, 2022
Int. Cl. C30B 29/32 (2006.01); C01G 39/00 (2006.01); C30B 1/02 (2006.01)
CPC C30B 1/023 (2013.01) [C01G 39/00 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A composition, comprising:
a population of crystalline transition metal dichalcogenide platelets having the empirical formula MC2, wherein M is a transition metal and C is a chalcogenide,
each of the platelets comprising a region of 3R phase and a region of 2H phase,
each of the platelets being characterized as comprising a single atomic layer to a few atomic layers, and
wherein a majority of the platelets in the population have shapes that are circular, ovoid, American football-shaped, triangular, a 4-sided polygon, a 5-sided polygon, or a 6-sided polygon.