鈣鈦礦系材料具有製程簡便、材料調控多樣性、吸收及激發光譜坐落在可見光波段…等特性，近年來被科學界廣泛的討論在太陽能電池、光致發光以及電致發光等領域應用之可能性。由於鈣鈦礦系量子點(PQDs)材料具有體積小、毒性低、效率高且其在可見光波段發光色純度高的優點，所以未來極有可能被應用在微型化發光二極體(Micro LEDs)以及量子點顯示器(QLED TV)的領域。因此在本研究計畫中我們提出利用材料表面改質技術以及具PMMA包覆PQDs奈米球兩項研究目標，來研發出可利用450-465波長藍光LEDs激發而分別生成綠光以及紅光之高效率、高穩定性新式量子點薄膜。 研究項目分為四個主題， (1) 高效率PQDs合成。(2) 高穩定性PQDs表面改質與包覆。(3) 多功能性PMMA包覆PQDs奈米球。(4) 實際應用性PQDs + PMMA新式薄膜製造。兩年時間完成研究目標：(1) 分別製造出可吸收450-465nm藍光而激發出520-540nm綠光以及620-640nm紅光PQDs，PLQY達95%以上。(2) 製造PQDs in MMA原料，該原料可藉由光聚合或是熱聚合生成PQDs+PMMA薄膜，薄膜經IEC標準測試後薄膜PLQY仍可達PQDs原效率80%以上。(3) 將表面改質技術PQDs以及具PMMA包覆PQDs 奈米球製造成新式量子點薄膜，應用在彩色濾光片，提高彩色濾光片效率30%以上。LEDs以及TFT-LCD顯示器為我國兩個極為重要的產業，為了因應日本以及韓國在此領域新產品以及新應用的威脅，研發高效能之新材料實為重要之議題，本研究如能執行，未來所得之成果可應用於micro LEDs以及QLEDs等領域，有助於提升我國相關產業的競爭力。 ;Inorganic–organic or all inorganic metal halide perovskite quantum dots (PQDs) with the advantages of inexpensive and solution-process, tunable wavelength over the whole visible spectral range, have received increasing attention in recent years. Given these advantages, the scientific community has extensively discussed the possibility of application in the fields of solar cells, photoluminescence and electroluminescence. In this research, we propose the use of material surface modification techniques and PMMA coated PQDs nanospheres to fabricate the high efficiency, high stability of the new PQDs thin film. This new PQDs thin film with the advantages of low toxicity, high efficiency and high purity of luminescent color, are very likely to be used in the field of micro LEDs and QLED TV in the future.The direction of project execution：(1) Synthesis of green- and red-emitting PQDs with the characteristics of high quantum yields, narrow emission line widths.(2) By the use of material surface modification techniques to improve the stability of PQDs.(3) Via the polymerization process to fabricate versatility PMMA coated PQDs nanospheres.(4) Manufacture new PQDs thin film to enhance the efficiency of commercial color filter.This project expects to achieve the following targets:(1) Synthesize the green and red light-emitting PQDs, respectively, with photoluminescence quantum yield (PLQY) more than 95%.(2) Fabricate PQDs + MMA raw material, which can generate PQDs + PMMA thin film by photopolymerization or thermal polymerization, and the PLQY of the thin film after IEC standard test can still reaches the original efficiency of PQDs of over 80%.(3) Manufacture new type of PQDs thin film to improve the efficiency of commercial color filter more than 30%.LEDs and TFT-LCD displays are two of the very important industries in Taiwan. In order to respond to the threats of new products and new applications in this field from Japan and South Korea, study and development of new materials with high performance are very important topics for us. The results of this study could be applied to micro LEDs and QLEDs and other fields, to enhance the competitiveness of Taiwan.
