Novel Transparent Insulator Material Could Boost Building Energy Efficiency

MOCHI, a new aerogel-like material from University of Colorado Boulder, aims to dramatically improve window insulation while maintaining transparency.

Feb. 1, 2026 at 12:15am

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Researchers at the University of Colorado Boulder have developed a novel transparent insulating material called MOCHI (Mesoporous Optically Clear Heat Insulator) that could significantly improve the energy efficiency of buildings. Unlike traditional insulating materials that sacrifice transparency, MOCHI features a precisely engineered structure of nanoscale air pockets that allow visible light to pass through while dramatically reducing heat transfer.

Why it matters

Buildings account for around 40% of total energy consumption in the U.S., with a significant portion of heating and cooling being lost through windows. MOCHI's ability to provide high insulation while remaining transparent could lead to widespread adoption, dramatically reducing energy demands for heating and cooling in both new and existing buildings.

The details

MOCHI is a relative of aerogels, but its structure is engineered to have precisely controlled, nanoscale air pockets that allow visible light to pass through. The creation process involves a solution-based approach using methyl trimethoxy silane (MTMS) and carefully selected surfactant molecules, resulting in a network of polysiloxane hydrogel with 90% air volume. The size of these air pockets (60-70 nanometers) is smaller than the mean free path of air molecules, inhibiting heat transfer through gas conduction.

  • The MOCHI material was developed by researchers at the University of Colorado Boulder in 2025.

The players

University of Colorado Boulder

A public research university located in Boulder, Colorado that has developed the novel MOCHI insulating material.

Ivan Smalyukh

A professor at the University of Colorado Boulder who has contributed to the development of the MOCHI material.

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What they’re saying

“The material's geometric complexity and poor thermal contacts further contribute to its insulating prowess.”

— Ivan Smalyukh, Professor (newsy-today.com)

What’s next

Researchers are working to streamline the manufacturing process for MOCHI, with potential commercial availability within the next 5-10 years. They are also exploring integrating MOCHI with smart window technologies that can dynamically adjust insulation levels.

The takeaway

The development of MOCHI represents a significant breakthrough in window technology, offering the potential to dramatically improve the energy efficiency of buildings while maintaining transparency. As the demand for sustainable building solutions grows, materials like MOCHI could play a pivotal role in shaping the future of energy-efficient architecture.