Abstract:
양자점-무기입자 응집체 및 이를 구비하는 광학요소를 제공한다. 양자점-무기입자 응집체는 양자점을 구비한다. 다수 개의 무기입자들이 상기 양자점을 둘러싼다. 무기입자들이 양자점을 둘러싼 형태의 양자점-무기입자 응집체에서, 무기입자들에 의해 양자점이 안정화되면서 고온의 환경에서도 내부 양자효율을 유지할 수 있는 등, 내열성이 향상될 수 있다. 또한, 양자점을 무기입자들이 부분부분 둘러싸게 되므로, 양자점을 무기층이 완전히 감싸는 경우에 비해 양자점으로의 광유입 및 광방출 효율이 향상 즉, 양자효율이 향상될 수 있다.
Abstract:
PURPOSE: A manufacturing method of a micro capsule type quantum dot-polymer is provided to provide a quantum dot-polymer composite having excellent quantum dot dispersity and capable of stably maintaining quantum efficiency for long term. CONSTITUTION: A manufacturing method of a micro capsule type quantum dot-polymer comprises a step of forming a polymer solution by heating a first polymer having a polar functional group in a side chain and a second polymer with a higher molecular weight than that of the first polymer, in a first solvent (S13); a step of forming a mixture by adding a quantum dot dispersion in which quantum dots capped by a capping layer in a second solvent into the polymer solution(S17); and a step of forming a quantum dot-polymer composite in which the quantum dots are dispersed in a polymer matrix by cooling the mixture (S19). [Reference numerals] (S11) Preparing a polymer having a polar functional group in a side chain and a polymer with a higher molecular weight; (S13) Forming a polymer solution by heating the polymer having a polar functional group in a side chain and the polymer with a higher molecular weight than that of the first polymer, in a first solvent; (S15) Preparing a quantum dot dispersion in which quantum dots capped by a capping layer in a second solvent in a second solvent; (S17) Forming a mixture by adding a quantum dot dispersion in the polymer solution; (S19) Forming a quantum dot-polymer composite by cooling the mixture