Solution processed glass/fluorine-doped tin oxide/aluminum-doped zinc oxide double layer thin films for transparent heater and near-infrared reflecting applications

Tonbul B., CAN H., ÖZTÜRK T., AKYILDIZ H.

JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY, cilt.99, sa.3, ss.482-496, 2021 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 99 Sayı: 3
  • Basım Tarihi: 2021
  • Doi Numarası: 10.1007/s10971-021-05591-1
  • Dergi Adı: JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, PASCAL, Aerospace Database, Applied Science & Technology Source, Biotechnology Research Abstracts, Chemical Abstracts Core, Chimica, Communication Abstracts, Compendex, Computer & Applied Sciences, Metadex, Civil Engineering Abstracts
  • Sayfa Sayıları: ss.482-496
  • Anahtar Kelimeler: Transparent heaters, Heat mirrors, Ultrasonic spray pyrolysis, Multilayer, AZO, FTO, ULTRASONIC SPRAY-PYROLYSIS, LOW-TEMPERATURE GROWTH, HIGHLY TRANSPARENT, OPTICAL-PROPERTIES, PHYSICAL-PROPERTIES, ZNO, AL, RF, AZO, DEPOSITION
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

Double layer glass/fluorine-doped tin oxide (FTO)/aluminum-doped zinc oxide (AZO) multifunctional thin films were achieved via ultrasonic spray pyrolysis (USP) method without employing a post-deposition annealing. Transparent heater and near-infrared heat reflection behaviors were investigated. The samples were characterized in terms of their structural, morphological, optical, and electrical properties. The top AZO layer exhibited a polycrystalline structure without any preferred orientation. The double layer structure showed very high average transmittance (87%, 400-700 nm) in the visible and reflectance (55%, 2500 nm) in the near-infrared, regions. In addition, the sheet resistance and resistivity of the film were measured as 14.85 (Omega sq(-1)) and 1.78 x 10(-3) (Omega cm), respectively. The saturation temperature, response time, surface temperature uniformity, areal power density, and thermal resistance values were found to be 111 degrees C, 174 s, 11.42%, 0.299 W/cm(2), and 282.8 degrees C cm(2) W-1 for a sample with an active area of 31.5 cm(2) and input voltage of 9 V. In addition, dry-ice cooled samples (-25 degrees C) showed impressive deicing performance depending on the input power. In case of 12 V, all ice was defrosted, and water droplets were evaporated within 2 min and 10 s. During this process, a heating rate of similar to 43 degrees C/min was achieved.