【摘 要】
:
Fluorescent carbon dots (CDs) are admirable nanomaterials due to their superior optical properties and low cost.However,regulation of the emission colors in CDs
【机 构】
:
School of Chemistry and Chemical Engineering,Anhui University of Technology,Ma’anshan,243032,China;D
论文部分内容阅读
Fluorescent carbon dots (CDs) are admirable nanomaterials due to their superior optical properties and low cost.However,regulation of the emission colors in CDs for lighting device still remains a challenge.In this work,we developed a green hydrothermal method to obtain three emission colors of CDs using L-tyrosine (for blue CDs),o-phenylendiamine (for green CDs) and L-tyrosine/o-phenylendiamine mixture(for orange-red CDs).These CDs possess good water dispersibility,strong emission with high quantum yields,and excellent photostability.Furthermore,the resulting CDs were dispersed in polyvinyl alcohol(PVA) matrix to yield solid state films,where the self-quenching effect in solid state was effectively avoided.A full-color light-emitting diode was fabricated by packing the CDs-PVA composites on the top of a UV-chip,which have superior potential applications in CDs-based solid-state lighting system.
其他文献
We developed flexible and transparent thin film heaters (TFHs) with a structure of AZO/Ag-SnOx/AZO/Polyimide (PI) which exhibited superior stability under opera
Two tetrazole compounds (BTA,BTTA) self-assembled on copper substrate and their inhibition effect toward copper corrosion in 0.5 M H2SO4 was evaluated through a
We herein report the room temperature synthesis of colloidal SnO2 quantum dots and their applica-tion in non-fullerene organic solar cells as an excellent elect
Ti-15Zr-xCu (3 ≤ x ≤ 7,wt.%) novel antibacterial and antibiofilm alloys with competitive mechanical properties,biological responses and corrosion resistance we
Interactions between light and magnetic matter attracted great attention lately due to their potential applications in nanophotonics,spintronics,and high-accura
Powder bed fusion with electron beam (PBF-EB),allows Co-Cr-Mo (CCM) implants with patient-customization to be fabricated with high quality and complex geometry.
A data-driven approach combining together the experimental laser soldering,finite element analysis and machine learning,has been utilized to predict the morphol
Magnesium (Mg) is a promising biomedical metal because of its biodegradability.The crevice between tissue and Mg implant can not be neglected in some implantati
Implant-related infection and early bone integration are the main risk factors of implants for long-term service,to overcome these difficulties,SLA-TiCu surface