What question did this study set out to answer?

To develop a scalable, large-area hybrid smart window combining electrochromic and thermochromic functions using a bidirectional dual-chromic polymer electrolyte.

August 20, 2026Advanced Functional MaterialsOpen Access

Roll‐to‐Roll Processable EC/TC Hybrid Smart Windows Driven by a Bidirectional Dual‐Chromic Polymer Electrolyte

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Authors

SKSoyeon Kim EJEuiseok Jeong MJMuhammad Jahandar

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Overview

Materials study demonstrates roll-to-roll hybrid electrochromic and thermochromic smart windows, indicating a scalable pathway for energy-efficient building temperature control.

Key Points

To develop a scalable, large-area hybrid smart window combining electrochromic and thermochromic functions using a bidirectional dual-chromic polymer electrolyte.
Synthesized a dual-chromic polymer electrolyte (DCPE) blended with hydroxypropyl methylcellulose (HPMC) to suppress water loss and stabilize thermal cycling.
Optimized the ion storage layer to enhance electrochromic charge capacity and coloration efficiency.
Fabricated large-scale (up to 750 × 600 mm) PEDOT:PSS and WO3 films using continuous roll-to-roll (R2R) coating and evaluated thermal performance under simulated IR and outdoor conditions.
The hybrid system achieved a coloration efficiency of 308.65 cm² C⁻¹ and expanded solar modulation (ΔT_sol) from 15.18% under electrochromic-only mode to 43.09% under dual electrochromic/thermochromic activation.
The films demonstrated operational durability exceeding 200 thermochromic cycles and 10,000 electrochromic cycles with switching times under 90 seconds.
Large-area (750 × 600 mm) devices lowered indoor temperatures by 10–14°C with a thermal shielding efficiency (η_thermal) of 50–80%.

Cite This Study

Kim et al. (2026) studied this question.

synapsesocial.com/papers/6a86b5ff8a91293e6a1cd945 https://doi.org/10.1002/adfm.77765

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August 20, 2026Advanced Functional MaterialsOpen Access

Roll‐to‐Roll Processable EC/TC Hybrid Smart Windows Driven by a Bidirectional Dual‐Chromic Polymer Electrolyte

View Full Paper

Ask AI

Bookmark

Authors

SKSoyeon Kim EJEuiseok Jeong MJMuhammad Jahandar

Discussion

Member takes

Overview

Materials study demonstrates roll-to-roll hybrid electrochromic and thermochromic smart windows, indicating a scalable pathway for energy-efficient building temperature control.

Key Points

To develop a scalable, large-area hybrid smart window combining electrochromic and thermochromic functions using a bidirectional dual-chromic polymer electrolyte.
Synthesized a dual-chromic polymer electrolyte (DCPE) blended with hydroxypropyl methylcellulose (HPMC) to suppress water loss and stabilize thermal cycling.
Optimized the ion storage layer to enhance electrochromic charge capacity and coloration efficiency.
Fabricated large-scale (up to 750 × 600 mm) PEDOT:PSS and WO3 films using continuous roll-to-roll (R2R) coating and evaluated thermal performance under simulated IR and outdoor conditions.
The hybrid system achieved a coloration efficiency of 308.65 cm² C⁻¹ and expanded solar modulation (ΔT_sol) from 15.18% under electrochromic-only mode to 43.09% under dual electrochromic/thermochromic activation.
The films demonstrated operational durability exceeding 200 thermochromic cycles and 10,000 electrochromic cycles with switching times under 90 seconds.
Large-area (750 × 600 mm) devices lowered indoor temperatures by 10–14°C with a thermal shielding efficiency (η_thermal) of 50–80%.

Cite This Study

Kim et al. (2026) studied this question.

synapsesocial.com/papers/6a86b5ff8a91293e6a1cd945 https://doi.org/10.1002/adfm.77765

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