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<p>Antireflection coating plays a crucial role in many optical devices by minimising the reflection. Along with the antireflection property, a coating must possess self-cleaning property to maintain the efficiency of a solar cell for long-term application. In this work, SnO<sub>2</sub>/TiO<sub>2</sub> thin film with TEOS and iTES was deposited on glass substrates at room temperature. The prepared coatings were characterized by different techniques such as XRD, UV-visible spectrophotometer, Ellipsometry, FESEM, EDX, Laser Profilometry, and Water contact angle. The prepared SnO<sub>2</sub>/TiO<sub>2</sub>/TEOS and SnO<sub>2</sub>/TiO<sub>2</sub>/TEOS/iTES films showed a maximum transmittance of 92.93% and 93.06% with an average refractive index of 1.42 and 1.39 respectively. The transmittance of the antireflective films was increased by 2.6% compared to the bare glass substrate. Wettability studies reveal that SnO<sub>2</sub>/TiO<sub>2</sub>/TEOS film is superhydrophilic with water contact angle of 6.8º. Also, the antifogging performance of SnO<sub>2</sub>/TiO<sub>2</sub>/TEOS film was investigated. The photovoltaic performance of the AR coating as a cover glass of a photovoltaic module was evaluated by using commercially available polycrystalline silicon solar cells. Furthermore, the coating maintains the solar cell’s performance even during dust exposure, because of its self-cleaning ability.</p>

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Synergistic effect of TEOS and iTES on SnO2/TiO2 antireflective thin films for solar cell efficiency and antifogging

  • 期刊论文

  • 发表日期：

    2026年5月30日

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  • N. R. Chandralekha,
  • J. Shanthi,
  • K. K. Anoop

摘要

Antireflection coating plays a crucial role in many optical devices by minimising the reflection. Along with the antireflection property, a coating must possess self-cleaning property to maintain the efficiency of a solar cell for long-term application. In this work, SnO2/TiO2 thin film with TEOS and iTES was deposited on glass substrates at room temperature. The prepared coatings were characterized by different techniques such as XRD, UV-visible spectrophotometer, Ellipsometry, FESEM, EDX, Laser Profilometry, and Water contact angle. The prepared SnO2/TiO2/TEOS and SnO2/TiO2/TEOS/iTES films showed a maximum transmittance of 92.93% and 93.06% with an average refractive index of 1.42 and 1.39 respectively. The transmittance of the antireflective films was increased by 2.6% compared to the bare glass substrate. Wettability studies reveal that SnO2/TiO2/TEOS film is superhydrophilic with water contact angle of 6.8º. Also, the antifogging performance of SnO2/TiO2/TEOS film was investigated. The photovoltaic performance of the AR coating as a cover glass of a photovoltaic module was evaluated by using commercially available polycrystalline silicon solar cells. Furthermore, the coating maintains the solar cell’s performance even during dust exposure, because of its self-cleaning ability.