1-xSmxO2（x=0%，8%，16%，24%，質(zhì)量分?jǐn)?shù)，下同）微納米纖維，表征了產(chǎn)物的物相、形貌、激光吸收性能和紅外發(fā)射率，同時(shí)基于密度泛函理論的第一性原理對(duì)比分析了Sn1-xSmxO2（x=0%， 16%）的相關(guān)光電性質(zhì)，進(jìn)一步從電子結(jié)構(gòu)角度解釋了Sm3+摻雜對(duì)SnO2紅外發(fā)射率和激光吸收的作用機(jī)理。結(jié)果表明：經(jīng)600 ℃煅燒后，Sn1-xSmxO2均為單一金紅石型結(jié)構(gòu)，呈現(xiàn)出良好的纖維形貌，纖維相互交錯(cuò)，形成無規(guī)則三維網(wǎng)狀結(jié)構(gòu)，且各元素在纖維上分布均勻。隨著Sm3+摻雜量的增大，產(chǎn)物在1064和1550 nm處的反射率逐漸降低，紅外發(fā)射率先減小后增大。當(dāng)x=16%時(shí)，在1064 nm處的反射率為53.9%，在1550 nm處的反射率為38.5%，在8?14 μm波段的紅外發(fā)射率為0.749，為“薄輕寬強(qiáng)”的新型激光與紅外兼容隱身材料提供了一定的理論與實(shí)踐依據(jù)。;Sn1-xSmxO2 (x=0wt%, 8wt%, 16wt%, 24wt%) micro/nano-fibers were prepared by electrospinning combined with heat treatment. The phase, morphology, infrared emissivity, and laser absorption properties of the products were characterized. The first principles simulation based on density functional theory was used to compare and analyze the photoelectric properties of Sn1-xSmxO2 (x=0wt%, 16wt%) material, and the effect mechanism of Sm3+ doping on the infrared emissivity and laser absorption of SnO2 from the perspective of electronic structure was further clarified. Results show that after calcination at 600 °C, the calcined Sn1-xSmxO2 micro/nano-fibers all present the single rutile structure and show good fiber morphology. The fibers interlace with each other, forming irregular three-dimensional network structure, and the elements are evenly distributed on the fiber. With increasing the Sm3+ doping amount, the reflectivity of Sn1-xSmxO2 micro/nano-fibers is decreased gradually at wavelength of 1.06 and 1.55 μm, and the infrared emission is decreased firstly and then increased. When x=16wt%, the reflectivity at wavelength of 1064 nm is 53.9%, the reflectivity at wavelength of 1550 nm is 38.5%, and the infrared emissivity at wave band of 8?14 μm is 0.749, which provides a theoretical and practical basis for the thin, light, wide-band, and high-performance laser-infrared compatible stealth materials."/>