| Citation: | Xiuling Yang, Jingjiang Yang, Gaigai Duan, Xiaoshuai Han, Hui Fu, Yong Huang, Chunmei Zhang, Shuijian He, Shaohua Jiang. Sustainable dual-response optical modulation: WO3-based transparent cellulose composite membrane for photo- and electro-responsive chromatic devices[J]. Journal of Bioresources and Bioproducts, 2026, 11(3): 100229. doi: 10.1016/j.jobab.2026.100229 |
Photo- and electro-chromic devices can facilitate the realization of a wide set of future applications, ranging from transparent displays, dynamic windows, optical switches, and variable optical attenuators. Tungsten oxide (WO3) has always been the most studied material in the field of photo- and electro-chromic, although it has some bottlenecks. Here, we report a flexible transparent wood membrane for photo- and electro-chromic applications. The photochromic membrane (PCM) shows excellent photochromic properties, including high optical modulation (ΔT1030 nm = 68.8%), ultraviolet (UV) shielding (>92%) and dynamic light regulation. Meanwhile, the electrochromic membrane (ECM, active area: 1 cm × 2.5 cm) and assembled complementary devices (active area: 3.4 cm × 3.4 cm) produce high optical modulation (ΔT1030 nm = 78.2%) at 1030 nm, and the transmittance in colored state of below 10%. Noteworthy, the ECM (active area: 3.4 cm × 3.4 cm) comprised of WO3/Ag nanowires (NWs)/flexible wood-derived transparent cellulose membranes, reveals enhanced optical modulation (60.7%) and rapid response time (coloring/bleaching time: 7.6 s/10.8 s). Moreover, the electrode also presents good cycling stability (96.2% after 120 cycles). The design of these chromic devices introduces an innovative strategy, which is expected to open up a new way for the development of photo- and electro-chromic devices. Crucially, the inherent flexibility and scalability of the transparent wooden substrate enable it to maintain relatively stable performance across different device dimensions, thereby resolving practical challenges in real-world applications.
| [1] |
Chen, F., Ritter, M., Xu, Y.F., Tu, K.K., Koch, S.M., Yan, W.Q., Bian, H.Y., Ding, Y., Sun, J.G., Burgert, I., 2024. Lightweight, strong, and transparent wood films produced by capillary driven self-densification. Small 20, e2311966.
|
| [2] |
Chen, T.D., Yang, Q.J., Fang, C.Q., Deng, S.Z., Xu, B.G., 2025. Advanced design for stimuli-reversible chromic wearables with customizable functionalities. Adv. Mater. 37, 2413665.
|
| [3] |
Deng, B., Zhu, Y.N., Wang, X.W., Zhu, J.L., Liu, M.Y., Liu, M.Q., He, Y.W., Zhu, C.Z., Zhang, C.H., Meng, H., 2023. An ultrafast, energy-efficient electrochromic and thermochromic device for smart windows. Adv. Mater. 35, e2302685.
|
| [4] |
Dreimol, C.H., Guo, H.Z., Ritter, M., Keplinger, T., Ding, Y., Günther, R., Poloni, E., Burgert, I., Panzarasa, G., 2022. Sustainable wood electronics by iron-catalyzed laser-induced graphitization for large-scale applications. Nat. Commun. 13, 3680.
|
| [5] |
Guo, J.K., Jia, H.X., Shao, Z.W., Jin, P., Cao, X., 2023. Fast-switching WO3-based electrochromic devices: design, fabrication, and applications. Acc. Mater. Res. 4, 438-447.
|
| [6] |
Hamedi, M.M., Sandberg, M., Olsson, R.T., Pedersen, J., Benselfelt, T., Wohlert, J., 2025. Wood and cellulose: the most sustainable advanced materials for past, present, and future civilizations. Adv. Mater. 37, 2415787.
|
| [7] |
Huang, B.K., Wang, B., Zhao, F.F., Li, H.Z., Yu, W.W., 2025a. A dual-mode anode-free zinc-prussian blue electrochromic device. Adv. Funct. Mater. 35, 2423532.
|
| [8] |
Huang, D.F., Li, J., Li, S.Y., Hu, J.B., Cao, Z.R., Guo, Y., Ding, Y., Zhu, M.W., Chen, Y.F., 2025b Self-densified super-strong wood. J. Bioresour. Bioprod. 10, 199-208.
|
| [9] |
Huang, L., Cao, S., Liu, Y.W., Chen, J.Y., Li, H.Y., Liang, Y., Yang, T., Zou, B.S., 2025c. Built-In electric field-assisted polyaniline for boosting dual-band electrochromic smart windows with multicolor displays and four-mode conversion. Adv. Funct. Mater. 35, 2500064.
|
| [10] |
Huang, Y., Wu, S.D., Zhao, S.M., Guo, Z.Y., Zhao, Z.J., Wu, X.K., Wang, B.S., Wang, F., Xi, A.K., Lan, F., Li, Y.R., Xu, J.Q., Li, R., Zhao, Y.L., Zhang, R.F., 2025d A novel liquid flow electrochromic smart window for all-year-round dynamic photothermal regulation. Energy Environ. Sci. 18, 1824-1834.
|
| [11] |
Ko, Y., Kwon, G., Choi, H., Lee, K.Y., Jeon, Y., Lee, S.J., Kim, J., You, J., 2023. Cutting edge use of conductive patterns in nanocellulose-based green electronics. Adv. Funct. Mater. 33, 2302785.
|
| [12] |
Kong, X.R., Wang, X.Q., He, Z.K., Zhao, H.B., Wang, Y., Yao, W.X., Fan, X.P., Hu, C.X., Gao, W.J., 2025. Chromogenic materials in building energy efficiency: application trends, suitability assessment and future prospects. Mater. Today 86, 482-521.
|
| [13] |
Li, H.Y., Abdelgaid, M., Paudel, J.R., Holzapfel, N.P., Augustyn, V., McKone, J.R., Mpourmpakis, G., Crumlin, E.J., 2025a. operando unveiling of hydrogen spillover mechanisms on tungsten oxide surfaces. J. Am. Chem. Soc. 147(8), 6472-6479.
|
| [14] |
Li, J., Wang, P.N., Zheng, S.Q., Cai, Y.Q., Sun, Y.M., Lin, B.P., 2025b High-stable and bifunctional cellulose nanofibers-silver nanowires/tungsten trioxide films for paper-based transparent electrochromic supercapacitor. J. Power Sources 655, 237934.
|
| [15] |
Li, Q.W., Li, J.C., Wang, W.Q., Ma, D.Y., Li, G.S., Wang, J.M., 2025c. A wide-temperature adaptive electrochromic device based on a poly(vinyl alcohol)/poly(acrylic acid) gel electrolyte. Adv. Funct. Mater. 35, 2415874.
|
| [16] |
Li, S.L., Chen, Y.Y., Wang, Z., Wang, M.M., Guo, X.L., Tang, X.Q., Wang, X.Y., Lai, W.D., Tong, M.Y., Wang, C.H., Cong, S., Geng, F.X., Chen, Y., Zhao, Z.G., 2025d Electrochromism via reversible electrodeposition of solid iodine. Nat. Commun. 16, 724.
|
| [17] |
Li, S.L., Lv, Z.P., He, J.L., Song, J.X., 2024. Ultrasonic-assisted electrochemical strategy for ITO scraps recovery through anodic dissolution. Chem. Eng. J. 499, 156247.
|
| [18] |
Ma, H.S., Liu, C.Z., Yang, Z., Wu, S., Jiao, Y., Feng, X.H., Xu, B., Ou, R.X., Mei, C.T., Xu, Z.Y., Lyu, J.X., Xie, Y.J., Fu, Q.L., 2024. Programmable and flexible wood-based origami electronics. Nat. Commun. 15, 9272.
|
| [19] |
Matsushita, S., Jeong, Y.S., Okada, Y., Hayasaka, H., Akagi, K., 2017. Electrochromically and photochromically controllable multifunctional OligoEDOT derivatives. Adv. Funct. Mater. 27, 1700929.
|
| [20] |
Michael, A., Chiang, L., 2024. Recent development and challenges in enhancing fire performance on wood and wood-based composites: a 10-year review from 2012 to 2021. J. Bioresour. Bioprod. 9, 27-42.
|
| [21] |
Mollick, S., Tan, J.C., 2025. Organic solid-state photochromism using porous scaffolds. Nat. Rev. Mater., 519-535.
|
| [22] |
Park, C.S., Park, S., Cheon, H., Kim, H.K., 2025. Enhanced flexibility of WO3-based flexible electrochromic devices for smart windows via ion beam treatment. Chem. Eng. J. 509, 161283.
|
| [23] |
Qin, Y.L., Ji, G.F., Zhang, Y., Yan, M., Dou, Y., Wang, W.S., 2025. Insight into the role of photochromic effect in photocatalytic oxidation of ethylbenzene over h-MoO3 hexagonal microprisms. Chem. Eng. J. 507, 160562.
|
| [24] |
Rahman, M.U., Yuan, Y.F., Yan, J.L., Xu, Y.Q., Cao, Z.Y., Xu, Y., Liu, J.X., Li, M.H., 2025. Series of viologen-based metal-oxalate frameworks showing ultrafast-response photo/electrochromic and UV detection behavior. J. Alloys Compd. 1013, 178621.
|
| [25] |
Roy, R., Greeshma, R., Basith, A., Banerjee, R., Singh, A.K., 2024. Self-rechargeable aqueous Zn2+/K+ electrochromic energy storage device via scalable spray-coating integrated with Marangoni flow. Energy Storage Mater. 71, 103680.
|
| [26] |
Shi, A.Y., Yang, G.J., Ghani, A., Lu, Q.Y., Ye, W.X., Mu, C.J., Jiang, T.Y., Pang, Z.Q., Lu, Y.H., Tan, G., 2025. Crystal adjustment-based neutral-tinted nickel-tungsten-oxygen for electrochromic energy-efficient windows with wide spectral regulation. Chem. Eng. J. 509, 161406.
|
| [27] |
Tian, M.F., Zheng, R.Z., Jia, C.Y., 2025. Bridging to commercialization: record-breaking of ultra-large and superior cyclic stability tungsten oxide electrochromic smart window. Adv. Mater. 37, 2409790.
|
| [28] |
Wang, B., Liu, P.C., Zhao, F.F., Huang, B.K., Zhang, W., Elezzabi, A.Y., Liu, L.H., Yu, W.W., Li, H.Z., 2025. Electro- and photo- dual responsive chromatic devices for high-contrast dimmers. Adv. Mater. 37, 2410703.
|
| [29] |
Wen, R.T., Granqvist, C.G., Niklasson, G.A., 2015. Eliminating degradation and uncovering ion-trapping dynamics in electrochromic WO3 thin films. Nat. Mater. 14, 996-1001.
|
| [30] |
Xie, Y.F., Li, M.N., Huang, R.N., Cao, N.Z., Chao, D.M., 2024. How much of the energy in the electrochromic energy storage window can be reused? Energy Storage Mater. 67, 103321.
|
| [31] |
Xing, W.S., Luo, Y.X., Si, L.M., Liang, X., Li, Y.J., Song, J.W., Shen, S.P., 2025. High-strength, high-conductivity, and crack-resistant ionic conductors with aligned cellulose fibers. Adv. Funct. Mater. 35, 2416701.
|
| [32] |
Yue, H.G., Ju, X.P., Ming, S.L., Zhang, Y., Zhao, J.S., Du, Y.C., Zhang, J.H., 2024. Molecular design of multifunctional integrated conjugated polymers with photoluminescence and electrochromic properties and constructing the electrochromic devices. Chem. Eng. J. 502, 157931.
|
| [33] |
Yun, T.G., Park, M., Kim, D.H., Kim, D., Cheong, J.Y., Bae, J.G., Han, S.M., Kim, I.D., 2019. All-transparent stretchable electrochromic supercapacitor wearable patch device. ACS Nano 13(3), 3141-3150.
|
| [34] |
Zhang, S.L., Cao, S., Zhang, T.R., Fisher, A., Lee, J.Y., 2018. Al3+ intercalation/de-intercalation-enabled dual-band electrochromic smart windows with a high optical modulation, quick response and long cycle life. Energy Environ. Sci. 11, 2884-2892.
|
| [35] |
Zhang, S.M., Hao, P.F., Zhang, Y.F., Li, G.P., Shen, J.J., Fu, Y.L., 2024a. The simultaneous modulation effect of N-substituents on the photochromic and electrochromic properties of naphthalenediimide-based coordination polymers. Inorg. Chem. Front. 11, 1226-1237.
|
| [36] |
Zhang, Y.Q., Ding, Y.L., Lan, F., Zhang, W.J., Li, J.F., Zhang, R.F., 2024b Recent advances in tungsten oxide-based chromogenic materials: photochromism, electrochromism, and gasochromism. Nanoscale 16, 21279-21293.
|
| [37] |
Zhang, Y.X., Xu, B., Zhao, F.F., Li, H.Z., Chen, J.W., Wang, H.L., Yu, W.W., 2024c. Inkjet printing for smart electrochromic devices. FlexMat 1, 23-45.
|
| [38] |
Zhao, F.F., Wang, B., Zhang, W., Cao, S., Liu, L.H., Elezzabi, A.Y., Li, H.Z., Yu, W.W., 2023. Counterbalancing the interplay between electrochromism and energy storage for efficient electrochromic devices. Mater. Today 66, 431-447.
|
| [39] |
Zheng, X.J., Wang, Y.M., Chen, T.Y., Kong, Y.B., Wu, X.L., Zhou, C., Luo, Q., Ma, C.Q., Zuo, L.J., Shi, M.M., Chen, H.Z., 2024. Realizing record efficiencies for ultra-thin organic photovoltaics through step-by-step optimizations of silver nanowire transparent electrodes. FlexMat 1, 221-233.
|