Tổng hợp và khảo sát tính chất của vật liệu Nano SnO₂ pha tạp Eu và Mn : Luận văn tốt nghiệp thạc sĩ ngành. Hóa lý thuyết và Hóa Lý

Tổng hợp thành công vật liệu nano SnO₂ pha tạp Eu³⁺ và Mn²⁺ bằng phương pháp thủy nhiệt. Vật liệu được đem đo nhiễu xạ tia X (XRD), ảnh hiển vi điện tử quét (FESEM), phổ huỳnh quang (PL) để xác định cấu trúc mạng, kích thước tinh thể, hình thá...

সম্পূর্ণ বিবরণ

সংরক্ষণ করুন:

গ্রন্থ-পঞ্জীর বিবরন
প্রধান লেখক:	Nguyễn, Thanh Lam
বিন্যাস:	গ্রন্থ
ভাষা:	Undetermined
প্রকাশিত:	Cần Thơ Trường Đại học Cần Thơ 2019
বিষয়গুলি:	Tin compounds,Hợp chất thiếc
ট্যাগগুলো:	ট্যাগ যুক্ত করুন কোনো ট্যাগ নেই, প্রথমজন হিসাবে ট্যাগ করুন!

Thư viện lưu trữ:	Trung tâm Học liệu Trường Đại học Cần Thơ

বিবরন
সংক্ষিপ্ত:	Tổng hợp thành công vật liệu nano SnO₂ pha tạp Eu³⁺ và Mn²⁺ bằng phương pháp thủy nhiệt. Vật liệu được đem đo nhiễu xạ tia X (XRD), ảnh hiển vi điện tử quét (FESEM), phổ huỳnh quang (PL) để xác định cấu trúc mạng, kích thước tinh thể, hình thái và tính chất quang. Nhiệt độ ủ và nồng độ pha tạp có ảnh hưởng đáng kể đến tính chất, cấu trúc vật liệu nano. Vật liệu SnO₂:Eu³⁺có kích thước tinh thể tăng từ 8 nm lên 39 nm khi tăng nhiệt độ ủ từ 200 ºC – 1000 ºC, phổ huỳnh quang cho thấy các đỉnh phát xạ lưỡng cực từ ở 586 nm, 591nm, 597 nm (⁵D₀7F1) và lưỡng cực điện ở 607 nm (⁵D₀→⁷F₂) đặc trưng của ion Eu³⁺. Vật liệu SnO₂:Mn²⁺có kích thước tinh thể tăng từ 8 nm lên 35 nm khi tăng nhiệt độ ủ từ 200 ºC – 1000 ºC, phổ huỳnh quang cho thấy phát xạ trong vùng khả kiến 470 – 625 nm do những sai hỏng, khuyết tật oxi.

Tổng hợp và khảo sát tính chất của vật liệu Nano SnO₂ pha tạp Eu và Mn : Luận văn tốt nghiệp thạc sĩ ngành. Hóa lý thuyết và Hóa Lý

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