Integrating Electrochemically Grown Nano‐Oxide and Polymer Films for Electrochromic Device: Achieving NIR Shielding & Four‐Digit Efficiency

Electrochemically deposited thin films yield high uniformity, a property which is quite vital to in the context of electrochromic coatings and devices. Tungsten oxide and polyaniline are two such materials that show superior electrochromic properties individually. However, when combined into a solid‐state device structure, they yield a device where the efficiency increases multi‐folds. This device combination, being thoroughly characterized in the domain of electrochromic parameters such as high switching speeds, rich color contrast and stability, was found to be an excellent complimentary electrochromic pair. The unique property of the said device is that it can reduce the transmission of wavelengths in the near infrared region of the electromagnetic spectrum, providing an edge over other such combinations. Besides, a four‐digit value of coloration efficiency makes this device stand out in the family of its contemporaries. Overall, the hybrid nature of the device prompts it to be an excellent combination indicating its high performance in terms of increased endurance and heat isolation capacity.This article is protected by copyright. All rights reserved.