Patent ID: 7981710

Claim:
A method for manufacturing a light emitting device comprising: forming a first electron transporting layer on a substrate; forming a second electron transporting layer having fluidity on the first electron transporting layer; forming a single particle layer of n-type semiconductor fine particles on the second electron transporting layer by arranging by one semiconductor fine particle in depth direction; doping a p-type dopant on each n-type semiconductor fine particle to form a p-type part at an upper part while maintaining an n-type part at a lower part wherein each semiconductor fine particle has a p-type part at the upper part and n-type part at the lower part, and a pn-junction are formed between the p-type part and the n-type part in each semiconductor fine particle; forming a hole transporting layer on the p-type part of each semiconductor fine particle of the single particle layer, wherein the p-type part of each semiconductor fine particle is partially contacted with the hole transporting layer, while the n-type part of each semiconductor fine particle is partially contacted with the second electron transporting layer; and forming a second electrode on the hole transporting layer.