調光鏡之電化學特性研究

The Electrochemical Study of Switchable Mirror

莊育偉(Yu-Wei Chuang)

指導教授 ： 陳念波

元智大學/電機通訊學院/光電工程學系/碩士(2012年)

https://doi.org/10.6838/YZU.2012.00157

摘要

本論文利用電化學沉積法製作氧化亞銅薄膜，該薄膜在鹼性溶液中，可以透過改變薄膜與對極之間的壓差進而改變其光學特性，成為透明態 Cu2O 或反射態 Cu，結合適當對極及電解質可形成調光鏡。在此次研究中，利用循環伏安法-電化學石英微天平法 cyclic voltammetry - electrochemical quartz crystal microbalance (CV-EQCM) 偵測不同電解質 LiOH、NaOH、KOH、KCl、KNO3 對於氧化亞銅狀態改變過程中質量變化的影響。分別為陽離子 Li+、Na+、K+ 及陰離子 OH-、Cl-、NO3-，在電致變色反應過程中對於薄膜造成的的影響，由結果找出最適合的電解質，進而提升其開關次數，增加變色薄膜的生命週期。本實驗的氧化亞銅薄膜是由低成本的電化學沉積法所製作，可以透過電鍍製程條件及電鍍液的配製來改變其光學特性。

關鍵字

電致變色 ； 調光鏡 ； 氧化亞銅

並列摘要

Cuprous oxide Cu2O thin films in this thesis are prepared by electrochemical deposition method.The Cu2O thin films undergo electrochromic color change between transparent Cu2O state and reflective Cu state. An in-situ cyclic voltammetry - electrochemical quartz crystal microbalance (CV-EQCM) method is used to monitor the effect of different electrolytes: LiOH, NaOH, KOH, KCl and KNO3 on the copper/cuprous oxide redox change and mass change. The influences of Li+, Na+, K+ cations and OH-, Cl-, NO3- anions on the electrochromism in the copper system are inspected. Since the cuprous oxide thin films are made with low-cost electrodeposition method and have the desired optical modulation characteristics. This copper based reflective type electrochromic thin films might find application in dynamic solar control window and optical modulation.

並列關鍵字

electrochromic ； switchable Mirror ； cuprous oxide

參考文獻

[34] 鄭宗記，李昆峰，張憲彰, “電化學石英晶體微天平之原理及應用,” Chinese Chem. Soc., vol. 59, pp. 219-233, 2001. [Online]. Available: http://proj3.sinica.edu.tw/~chem/servxx6/files/

[3]J. L. Slack and J. C. W. Locke and S. W. Song and J. Ona and T. J. Richardson, “Metal hydride switchable mirrors: Factors influencing dynamic range and stability,” Sol. Energy Mater. Sol. Cells, vol.90, pp. 485-490, 2006. [Online]. Available: http://www.lbl.gov/tt/publications/1817SEMSC90(2006)485.pdf

[14] Y. Tang and Z. Chen and Z. Jia and L. Zhang and J. Li, “Electrodeposition and characterization of nanocrystalline cuprous oxide thin films on TiO2 films,” Mater. Lett., vol. 59, pp. 434-438, 2005. [Online]. Available: http://www.sciencedirect.com/science/article/pii/S0167577X04007463

[16] J. Lee and Y. Tak, “Electrochemical Deposition of a Single Phase of Pure Cu2O Films by Current Modulation Methods,” Electrochem. Solid-State Lett., vol. 3, pp. 69-72, 2000. [Online]. Available: http://dspace.inha.ac.kr/bitstream/10505/20287/1/cu.pdf

[17] T. R. L. C. Paixao and E. A. Ponzio and R. M. Torresi and M. Bertotti, “EQCM Behavior of Copper Anodes in Alkaline Medium and Characterization of the Electrocatalysis of Ethanol Oxidation by Cu(III),” J. Braz. Chem. Soc., vol. 17, pp. 374-381, 2006. [Online]. Available: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532006000200023