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Low Temperature Processing Transparent Electrode

Technology Overview

Transparent conductive film is mostly used in flat panel displays, followed by touch screen displays and OLED lightings. ITO substitutes have been actively researched and expected to increase market share gradually. However, ITO is burdened by rising prices of raw material prices due to limitations of raw material reserves. Because ITO has a crystal structure, ITO lacks flexibility and requires high temperature process to form crystal structure.

This technology offers a flexible transparent electrode, produced via a room temperature process, using Zinc-doped Tin Oxide (Zn-doped SnO2). This technology satisfies the requirements of low resistance, high light transmittance and cost-effectiveness, making it a potential replacement for ITO.

Technology Features & Specifications

This technology carries the following properties:

  • Zn-doped SnO2 layer can be formed by sputtering, using Zn-doped SnO2 as a target
  • Multilayered structure of Zn-doped SnO2/Ag/Zn-doped SnO2 is attainable
  • Manufactured using low-cost raw materials
  • High light transmittance of >80% (@ 550nm) due to stacking of low/high/low refractive index materials
  • Low sheet resistance of <10Ω/sq
  • Room temperature process enables the formation of the structure onto a polymer substrate with improved flexibility

Potential Applications

This technology is applicable (but not limited) to the following:

  • Electrode for flat panel display
  • Electrode for touch screen display
  • Electrode for lighting

Market Trends and Opportunities

Market size of transparent conductive film is projected to exceed USD 9Bn in 2019. ITO substitutes have been actively researched and expected to increase market share gradually. Transparent conductive film is mostly used in flat panel displays, followed by touch screen displays and OLED lightings.

Customer Benefits

This technology has the following advantages:

  • Cost effective raw materials
  • High quality flexible electrode
  • Low sheet resistance
  • Suitable for various types of display, e.g. flat panel and touch screen, for handheld devices and lighting
  • Energy efficient through the use of room temperature process

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