Interface‐Driven Thermoelectric Switching Performance of VO+‐Diffused Soda‐Lime Glass
Interface‐Driven Thermoelectric Switching Performance of VO+‐Diffused Soda‐Lime Glass
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DOI：
10.1002/pssr.202100077
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发表时间：
2021-01
期刊：
影响因子：
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通讯作者：
C. Alphonse;Mohan Muralikrishna Garlapati;B. Tyler;H. Arlinghaus;S. Divinski;G. Wilde
中科院分区：
文献类型：
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作者：
C. Alphonse;Mohan Muralikrishna Garlapati;B. Tyler;H. Arlinghaus;S. Divinski;G. Wilde
用原位温控飞行时间二次离子质谱仪(ToF-SIMS)证实了简单溅射沉积的非晶态氧化钒薄膜与钠钙玻璃界面上的强限制NaVO+偏析及其热响应功能。获得的ToF-SIMS深度分布为可逆转变提供了明确的证据，该转变导致在25℃到340℃之间循环时Navo+/Na+和Na+/VO+强度的系统切换。随后，在钒氧化物扩散的玻璃中(在300℃)可逆地形成了Navo络合物，导致了薄膜玻璃系统的热敏电学行为。Navo+的这种新的偏析和扩散相关的多功能指向了作为热电/光开关、智能窗户或热传感器的先进材料的应用。
Strongly confined NaVO+ segregation and its thermoresponsive functionality at the interface between simple sputter‐deposited amorphous vanadium oxide thin films and soda‐lime glass is substantiated in this work by in situ temperature‐controlled time‐of‐flight secondary‐ion mass spectrometry (ToF‐SIMS). The obtained ToF‐SIMS depth profiles provide unambiguous evidence for a reversible transformation that causes systematic switching of the NaVO+/Na+ and Na+/VO+ intensities upon cycling the temperature between 25 and 340 °C. Subsequently, NaVO complexes are found to be reversibly formed (at 300 °C) in vanadium oxide‐diffused glass, leading to thermoresponsive electrical behavior of the thin‐film glass system. This new segregation and diffusion‐dependent multifunctionality of NaVO+ point toward applications as an advanced material for thermoelectrical/optical switches, in smart windows or in thermal sensors.