Manh Trung, Tran, Nguyen Tu, Nguyen Van Quang, Do Quang Trung, & Pham Thanh Huy. " Photoluminescent Properties of Red-emitting AlPO4:Cr3+ Phosphor for Plant Growth LEDs." VNU Journal of Science: Mathematics - Physics [Online], 37.3 (2021): n. pag. Web. 22 Dec. 2024