VO $^+$扩散钠钙玻璃的界面驱动热电转换性能
Interface-Driven Thermo-Electric Switching Performance of VO$^+$ Diffused Soda-Lime Glass
摘要：
通过原位温度控制飞行时间二次离子质谱（ToF-SIMS）研究了NaVO $^+$在非晶钒氧化物薄膜和钠钙玻璃界面上的强烈偏析及其热响应功能。所获得的ToF-SIMS深度分布提供了可逆转化的明确证据，该可逆转化在25 $^\circ$ C和340 $^\circ$ C之间循环温度时引起NaVO $^+$/Na $^+$和Na $^+$ / VO $^+$强度的系统切换。随后，发现在钒氧化物扩散玻璃中可逆地形成NaVO络合物（在300 $^\circ$ C下），导致薄膜玻璃系统的热响应电行为。NaVO $^+$的这种新的分离-和扩散依赖的多功能性-指向作为热光开关的先进材料的应用，在智能窗或热传感器中。
英文摘要：
Strongly confined NaVO$^+$ segregation and its thermo-responsive functionality at the interface between simple sputter-deposited amorphous vanadium oxide thin films and soda-lime glass was substantiated in the present study by in-situ temperature-controlled Time of Flight Secondary Ion Mass Spectrometry (ToF-SIMS). The obtained ToF-SIMS depth profiles provided unambiguous evidence for a reversible transformation that caused systematic switching of the NaVO$^+$/ Na$^+$ and Na$^+$/ VO$^+$ intensities upon cycling the temperature between 25 $^\circ$C and 340 $^\circ$C. Subsequently, NaVO complexes were found to be reversibly formed (at 300 $^\circ$C) in vanadium oxide diffused glass, leading to thermo-responsive electrical behaviour of the thin film glass system. This new segregation -- and diffusion-dependent multifunctionality of NaVO$^+$ -- points towards applications as an advanced material for thermo-optical switches, in smart windows or in thermal sensors.
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