Sustainable leveraging of natural resources is imperative to move toward next-generation electronics, balancing functionality, affordability, and sustainability. In this perspective, the use of sustainable materials is an effective way to combine electronics development and low carbon footprint. Here, we successfully introduced thin-film resistance temperature detectors (RTDs) and thin-film thermistor sensors on a triacetyl cellulose (TAC) film derived from sustainable plant-based cellulose. These devices are tested in a temperature range of 25° C to 75° C, demonstrating average sensitivity of 0.21 %° C-1 for the RTDs, and 0.26 %° C-1 for the thermistors. Device performances are demonstrated while mechanical strain is applied, with reliable functionality down to 8 mm bending radii. Finally, device dissolution in deionized water revealed the transient nature of the thermistor sensor after 10 days. These results demonstrate the potential of a cellulose based substrate and its integration with thin-film devices for the realization of green and yet sustainable electronics.
Thermal Sensors on Cellulose Based Substrate for Green Thin-Film Electronics / Maqsood, H.F., Rasheed, A., Krik, S., Masoumi, F., Cacialli, F., Lugli, P., Petti, L., Munzenrieder, N., Cantarella, G.. - (2025), pp. 1-4. (7th IEEE International Conference on Flexible and Printable Sensors and Systems, FLEPS 2025 sgp 2025) [10.1109/FLEPS65444.2025.11105679].
Thermal Sensors on Cellulose Based Substrate for Green Thin-Film Electronics
Cantarella G.
2025
Abstract
Sustainable leveraging of natural resources is imperative to move toward next-generation electronics, balancing functionality, affordability, and sustainability. In this perspective, the use of sustainable materials is an effective way to combine electronics development and low carbon footprint. Here, we successfully introduced thin-film resistance temperature detectors (RTDs) and thin-film thermistor sensors on a triacetyl cellulose (TAC) film derived from sustainable plant-based cellulose. These devices are tested in a temperature range of 25° C to 75° C, demonstrating average sensitivity of 0.21 %° C-1 for the RTDs, and 0.26 %° C-1 for the thermistors. Device performances are demonstrated while mechanical strain is applied, with reliable functionality down to 8 mm bending radii. Finally, device dissolution in deionized water revealed the transient nature of the thermistor sensor after 10 days. These results demonstrate the potential of a cellulose based substrate and its integration with thin-film devices for the realization of green and yet sustainable electronics.
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