Patent ID: 8878196

Claim:
A light-emitting device, comprising: a first electrode; a second electrode arranged opposite to the first electrode; and a semiconductor nanocrystal layer positioned between the first and second electrodes, wherein the semiconductor nanocrystal layer includes a monolayer structure in which semiconductor nanocrystal particles are arranged in a single layer, and voids formed between semiconductor nanocrystal particles of the semiconductor nanocrystal layer, the voids are filled with a filling material to a height equal to or lower than that of the semiconductor nanocrystal particles; the filling material being electrically insulating; where the electrically insulating material is selected from the group consisting of ZrO 2 , HfO 2 , Ta 2 O 5 , BaTiO 3 , BaZrO 3 , Y 2 O 3 , ZrSiO 4 , Si 3 N 4 , TiN, and a combination comprising at least one of the foregoing insulating materials.