Semiconductor nanoparticles, method for producing same, and color conversion member
A nanoparticle and color conversion technology, which is applied in semiconductor/solid-state device manufacturing, semiconductor devices, chemical instruments and methods, etc., can solve problems such as low optical efficiency
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example 1
[0124] Example 1: InP / GaP / ZnSe 0.5 S 0.5 Synthesis of / ZnS Semiconductor Nanoparticles
[0125] The amount of InCl was 1.0 mmol 3 and 5 g of oleylamine were mixed in a three-necked flask, and then degassed at 100° C. and stirred for 120 minutes while removing oxygen and moisture therein to form a reaction solution. Then, the reaction solution was heated to 290°C in an argon atmosphere for a certain period of time, cooled to 220°C, and then 0.25 mmol P(N(CH) was rapidly supplied thereto. 3 ) 2 ), and react for a certain period of time to grow InP quantum dot cores.
[0126] Next, the vacuum was released and the flask was filled with inert gas, and then the temperature was raised to 230°C. At 230°C, 1.0 mmol of zinc oleate, 1.0 mmol of trioctylphosphine selenide, 0.05 mmol of GaI were added thereto 3 and 10 mL of trioctylphosphine, and reacted for 1 hour to form a GaP inner shell and a zinc selenide middle shell.
[0127] Then, 2 mmol of zinc oleate and 2 mmol of trioctyl...
example 2
[0131] Except for GaI 3 The semiconductor nanoparticles of Example 2 were obtained in the same manner as in Example 1, except that the amount was 0.10 mmol.
example 3
[0133] Except for GaI 3 The semiconductor nanoparticles of Example 3 were obtained in the same manner as in Example 1, except that the amount was 0.15 mmol.
[0134] Evaluation example 1
[0135] Regarding the semiconductor nanoparticles manufactured according to Example 1 and Comparative Example 1, the maximum emission wavelength, FWHM, and emission quantum yield were evaluated. The results are shown in Table 1 and Figure 7 middle.
[0136] The measurement method is as follows: Regarding a solution (solvent: hexane or chloroform) in which the optical density of the semiconductor nanoparticles was adjusted to 0.01 to 0.05, the maximum emission wavelength and FWHM were evaluated from the PL spectrum measured using a photoluminescence (PL) spectrometer. Emission quantum yields were evaluated using an absolute quantum efficiency meter.
[0137] Table 1
[0138]
[0139] Figure 7 is a graphical depiction of the photoluminescence spectra of Example 1 and Comparative Exam...
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