【作者】 郭伟； 果崇申；

【Author】 Wei Guo;Chongshen Guo;Micro/Nano Technology Research Center,Harbin Institute of Technology;

【机构】 哈尔滨工业大学； 哈尔滨工业大学微纳米技术研究中心；

【摘要】 开发高效近红外线吸收质具有很高的实际应用意义,这是由于其可以广泛地应用于诸多领域,如节能窗户,生物热疗消融癌细胞,军事隐形涂层以及光学防伪等。在我们前期研究中通过控制缓释水的方法所合成出来的钨青铜类纳米粒子展示出较强的近红外线吸收能力和强的光热转化效率。含有少量此类近红外线吸收质的薄膜可以在透过大部分可见光的同时吸收掉接近于全部的近红外线,这也使得其在热线控制功能窗户方面具有得天独厚的优势。我们还将此类化合物通过高聚物修饰的方式提高其生物兼容性并应用于多功能化肿瘤治疗与成像复合体系。1此外,此类材料还被应用到近红外光催化,全光谱响应电致变色材料等领域。更多还原

【Abstract】 Tungsten bronzes nanoparticles have been fabricated by a designed water controlled-releasing process in which well-known esterification reaction between ethanol and acetic acid was creatively employed to generate water gradually during the solvothermal process,and thereafter the slowly released water completed the hydrolysis of W resource gradually,producing the homogenous particles.The resulting nanocrystals exhibit strong light absorption in a wide range of 800~2500 nm,covering the whole waveband of near infrared(NIR) region.In addition,these nanocrystals can instantaneously convert the absorbed photo-energy into local heat with high conversion efficiency.On the basis of these interesting properties,the thin film consisting of nanoparticles shows a high transmittance in the visible light region and excellent shielding ability of NIR lights.Meanwhile,Tungsten bronze nanoparticle could also be employed as oncotherapy and tumor imaging agent.Finally,the tungsten bronzes nanoparticles have also been applied to the NIR-induced catalysis,full-spectra electrochromic material and so forth.更多还原