Wavelength converting material and light emitting device

• Main Authors: ZHONG CHANGZHI, LI YUQUN, CAI ZONGLIANG, WANG HONGJIA, TONG HONGJUN
• Format: Patent
• Language: Chinese; English
• Published: 04.05.2021
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; SEMICONDUCTOR DEVICES

A wavelength converting substance includes a light emitting core and a first protective layer. The first protective layer covers the light-emitting core, and the first protective layer contains aluminum silicate. Each of the plurality of silicones of the aluminum silicate is one of a zeroth configuration Q4 (0Al), a first configuration Q4 (1Al), a second configuration Q4 (2Al), a third configuration Q4 (3Al), and a fourth configuration Q4 (4Al). The silicon of the zeroth configuration Q4 (0Al) is not connected to the aluminoxy group, the silicon of the first configuration Q4 (1Al) is connected to one aluminoxy group, the silicon of the second configuration Q4 (2Al) is connected to two aluminoxy groups, the silicon of the third configuration Q4 (3Al) is connected to three aluminoxy groups, and the silicon of the fourth configuration Q4 (4Al) is connected to four aluminoxy groups. The total silicon content in the third configuration Q4 (3Al) and the fourth configuration Q4 (4Al) is greater than the total silico