Sự phát quang từ các vật liệu khoảng băng rộng và các ứng dụng của nó

• Ngôn ngữ: vie
• Ký hiệu phân loại: 535.35 Luminescence
• Thông tin xuất bản: Nanoscience and nanotechnology, 2015
• Mô tả vật lý: 45297
• Bộ sưu tập: Metadata
• ID: 549267

Tóm tắt

The authors demonstrate ZnO and In2O3 microcrystals as an optical probe for wide range thermometry. Both ZnO and In2O3 microcrystals exhibit a monotonic decrease in luminescence intensities with increase in temperature. The variation has been explored to develop a thermometer in a wide temperature range. the authors also demonstrate enhanced brightness from broad-luminescent-wide band gap materials when sensitized with low band gap CdTe quantum dots. Wide band gap materials act as acceptors, while CdTe act as donors. One of the major implications is the designing of weak-luminescent-wide-band gap materials as bright white light emitting phosphors that can convert the ultraviolet into visible light.