Patent ID: 9496434
Filing Date: 2016-11-15
CPC Classification: H01L,Y02E

Claim Text:
1. A solar cell comprising: a substrate; a negative electrode on the substrate; an electron transport layer, a quantum dot layer made of an assembly of quantum dots and constructed to absorb solar light, a positive hole transport layer, and a positive electrode made of a light-transmitting material sequentially arranged on a principal surface of the negative electrode; and an output electrode on the positive electrode so that at least a part of a surface of the positive electrode is exposed, wherein the quantum dot layer is constructed in such a manner that the quantum dots are three-dimensionally periodically arranged silicon cluster particles, the silicon cluster particles have an average particle size of 3 nm or less, and an interparticle distance between the silicon cluster particles is 1 nm or less, and the silicon cluster particles have a core-shell structure comprising a core part having an sp