Perkel, J. M. The Internet of Things comes to the lab. Nature 542, 125–126 (2017). Article PubMed CAS Google Scholar Portilla, L. et al. Wirelessly powered large-area electronics for the Internet of Things. Nat. Electron. 6, 10–17 (2023). Article Google Scholar Sanchez, L. et al. SmartSantander: IoT experimentation over a smart city testbed. Comput. Netw.
Perkel, J. M. The Internet of Things comes to the lab. Nature 542, 125–126 (2017).
Google Scholar
Portilla, L. et al. Wirelessly powered large-area electronics for the Internet of Things. Nat. Electron. 6, 10–17 (2023).
Google Scholar
Sanchez, L. et al. SmartSantander: IoT experimentation over a smart city testbed. Comput. Netw. 61, 217–238 (2014).
Google Scholar
Sultania, A. K. & Famaey, J. Batteryless Bluetooth low energy prototype with energy-aware bidirectional communication powered by ambient light. IEEE Sens. J. 22, 6685–6697 (2022).
Google Scholar
Mathews, I., Kantareddy, S. N., Buonassisi, T. & Peters, I. M. Technology and market perspective for indoor photovoltaic cells. Joule 3, 1415–1426 (2019).
Google Scholar
Yan, B. et al. Indoor photovoltaics awaken the world’s first solar cells. Sci. Adv. 8, eadc9923 (2022).
Google Scholar
Cui, Y. et al. Wide-gap non-fullerene acceptor enabling high-performance organic photovoltaic cells for indoor applications. Nat. Energy 4, 768–775 (2019). This study established wide-bandgap non-fullerene acceptors as a key route to high-efficiency organic PVs under indoor illumination.
Google Scholar
Deng, H. et al. Novel symmetrical bifacial flexible CZTSSe thin film solar cells for indoor photovoltaic applications. Nat. Commun. 12, 3107 (2021).
Google Scholar
Tan, Y. K. & Panda, S. K. Energy harvesting from hybrid indoor ambient light and thermal energy sources for enhanced performance of wireless sensor nodes. IEEE Trans. Ind. Electron. 58, 4424–4435 (2011).
Google Scholar
Nasiri, A., Zabalawi, S. A. & Mandic, G. Indoor power harvesting using photovoltaic cells for low-power applications. IEEE Trans. Ind. Electron. 56, 4502–4509 (2009).
Google Scholar
Wang, K. L. et al. Ion–dipole interaction enabling highly efficient CsPbI3 perovskite indoor photovoltaics. Adv. Mater. 35, 2210106 (2023).
Google Scholar
Chen, C. H. et al. Full-dimensional grain boundary stress release for flexible perovskite indoor photovoltaics. Adv. Mater. 34, 2200320 (2022).
Google Scholar
Wang, W. X. et al. High-performance organic photovoltaic cells under indoor lighting enabled by suppressing energetic disorders. Joule 7, 1067–1079 (2023). This work showed that suppressing energetic disorder can substantially improve organic PV performance under indoor lighting.
Google Scholar
Kim, T. H. et al. Self-powering sensory device with multi-spectrum image realization for smart indoor environments. Adv. Mater. 36, 2307523 (2024).
Google Scholar
Chen, J. H., Chen, Y. S. & Jiang, Y. L. Energy-efficient scheduling for multiple latency-sensitive Bluetooth low energy nodes. IEEE Sens. J. 18, 849–859 (2018).
Google Scholar
Posadillo, R. & Luque, R. L. Approaches for developing a sizing method for stand-alone PV systems with variable demand. Renew. Energy 33, 1037–1048 (2008).
Google Scholar
Jagadamma, L. K. & Wang, S. Y. Wide-bandgap halide perovskites for indoor photovoltaics. Front. Chem. 9, 632021 (2021).
Google Scholar
Klitzke, M. et al. Optimization of GaInP absorber design for indoor photovoltaic conversion efficiency above 40%. Appl. Phys. Lett. 127, 023301 (2025).
Google Scholar
National Laboratory of the Rockies. Best Research-Cell Efficiency Chart. https://www.nlr.gov/pv/cell-efficiency (2026).
Philipps, S.& Warmuth, W. Photovoltaics Report. Fraunhofer ISE https://www.ise.fraunhofer.de/en/publications/studies/photovoltaics-report.html (2026).
Wang, T. et al. One-micron-thick organic indoor light harvesters with low photocurrent loss and fill factors over 67%. J. Mater. Chem. A 9, 13515–13521 (2021).
Google Scholar
Jiang, S. et al. Efficient perovskite indoor photovoltaics with open-circuit voltage of 1.15 V via collaborative optimization of CsPbI2Br layer and hole transport layer. Small Methods 6, 2200624 (2022).
Google Scholar
Casademont-Viñas, M. et al. Combinatorial screening of wide band-gap organic solar cell materials with open-circuit voltage between 1.1 and 1.4 V. J. Mater. Chem. A 12, 16716–16728 (2024).
Google Scholar
Heo, J. et al. High open-circuit voltage wide-bandgap perovskite solar cell with interface dipole layer. Small 20, 2404784 (2024).
Google Scholar
Hamadani, B. H. Understanding photovoltaic energy losses under indoor lighting conditions. Appl. Phys. Lett. 117, 043904 (2020). This study clarified the dominant PV energy-loss mechanisms under indoor illumination and the resulting low-light design priorities.
Google Scholar
Chen, C. H. et al. Reliable perovskite indoor photovoltaics for self-powered devices. Natl Sci. Rev. 12, nwaf242 (2025). This work demonstrated reliable perovskite indoor PVs capable of powering self-powered electronic devices.
Google Scholar
Hamadani, B. H. & Campanelli, M. B. Photovoltaic characterization under artificial low irradiance conditions using reference solar cells. IEEE J. Photovolt. 10, 1119–1125 (2020). This study provided a reference-cell-based framework for more reliable PV characterization under artificial low-irradiance conditions.
Google Scholar
Saito, H. et al. Performance evaluation method of organic photovoltaics under indoor light condition. Electrochemistry 86, 363–370 (2018).
Google Scholar
Parsons, D. E., Koutsourakis, G. & Blakesley, J. C. Performance measurements for indoor photovoltaic devices: classification of a novel light source. APL Energy 2, 016110 (2024).
Google Scholar
Staebler, D. L. & Wronski, C. R. Reversible conductivity changes in discharge-produced amorphous Si. Appl. Phys. Lett. 31, 292–294 (1977).
Google Scholar
Kao, M. H. et al. Low-temperature growth of hydrogenated amorphous silicon carbide solar cell by inductively coupled plasma deposition toward high conversion efficiency in indoor lighting. Sci. Rep. 7, 12706 (2017).
Google Scholar
Kim, G. et al. Transparent thin-film silicon solar cells for indoor light harvesting with conversion efficiencies of 36% without photodegradation. ACS Appl. Mater. Interfaces 12, 27122–27130 (2020).
Google Scholar
Klaver, A. & van Swaaij, R. A. C. M. M. Modeling of light-induced degradation of amorphous silicon solar cells. Sol. Energy Mater. Sol. Cells 92, 50–60 (2008).
Google Scholar
Li, J. et al. A brief review of high efficiency III-V solar cells for space application. Front. Phys. 8, 631925 (2021).
Google Scholar
Mokkapati, S. & Jagadish, C. III-V compound SC for optoelectronic devices. Mater. Today 12, 22–32 (2009).
Google Scholar
Shoji, Y. et al. Substrate reuse of hydride vapor phase epitaxy grown-GaAs solar cells for low-cost photovoltaics. In Proc. 2023 IEEE 50th Photovoltaic Specialists Conference (PVSC) (IEEE, 2023).
Horng, R. H. et al. Thin film solar cells fabricated using cross-shaped pattern epilayer lift-off technology for substrate recycling applications. IEEE Trans. Electron Devices 59, 666–672 (2012).
Google Scholar
Lu, X. et al. Increase in the efficiency and stability of large-area flexible organic photovoltaic modules via improved electrical contact. Nat. Energy 9, 793–802 (2024). This work demonstrated that improved electrical contacts can enhance both the efficiency and stability of large-area flexible organic PV modules.
Google Scholar
Kim, S. H. et al. Fine-tuning of the inner sidechain of donor polymers for efficient indoor organic photovoltaics. J. Mater. Chem. A 11, 12130–12139 (2023).
Google Scholar
Dayneko, S. V., Pahlevani, M. & Welch, G. C. Indoor photovoltaics: photoactive material selection, greener ink formulations, and slot-die coated active layers. ACS Appl. Mater. Interfaces 11, 46017–46025 (2019).
Google Scholar
Luo, S. W. et al. Optimizing spectral and morphological match of nonfullerene acceptors toward efficient indoor organic photovoltaics with enhanced light source adaptability. Nano Energy 98, 107281 (2022).
Google Scholar
Bi, P. et al. Achieving 31% efficiency in organic photovoltaic cells under indoor light using a low energetic disorder polymer donor. J. Mater. Chem. A 11, 983–991 (2023).
Google Scholar
Lee, M. J. et al. Tailoring hole-selective contacts via self-assembled monolayers for advancing indoor organic photovoltaic and capacitor devices. Chem. Eng. J. 481, 148481 (2024).
Google Scholar
Wang, W. et al. Indoor organic photovoltaic module with 30.6 % efficiency for efficient wireless power transfer. Nano Energy 128, 109893 (2024).
Google Scholar
Kim, T. H. et al. High-efficiency (over 33 %) indoor organic photovoltaics with band-aligned and defect-suppressed interlayers. Appl. Surf. Sci. 610, 155558 (2023).
Google Scholar
Saeed, M. A. et al. Bidentate mode coordinated Ti3CNTx MXene-controlled interfacial engineering enables high-performance indoor organic photovoltaic devices. Chem. Eng. J. 495, 153404 (2024).
Google Scholar
Zhang, T. et al. A medium-bandgap nonfullerene acceptor enabling organic photovoltaic cells with 30% efficiency under indoor artificial light. Adv. Mater. 34, 2207009 (2022).
Google Scholar
Kim, T. H. et al. Record indoor performance of organic photovoltaics with long-term stability enabled by self-assembled monolayer-based interface management. Nano Energy 112, 108429 (2023).
Google Scholar
Jošt, M., Ajdič, Z. & Topič, M. Performance of triple-cation perovskite solar cells under different indoor operating conditions. ACS Appl. Mater. Interfaces 16, 62195–62202 (2024).
Google Scholar
Albishi, M. S. et al. Bandgap engineering for efficient perovskite solar cells under multiple color temperature indoor lighting. Mater. Adv. 7, 4160–4170 (2026).
Google Scholar
Kundu, S. & Kelly, T. L. In situ studies of the degradation mechanisms of perovskite solar cells. EcoMat 2, e12025 (2020).
Google Scholar
Hong, S. et al. High-efficiency large-area perovskite photovoltaic modules achieved via electrochemically assembled metal-filamentary nanoelectrodes. Sci. Adv. 4, eaat3604 (2018).
Google Scholar
Abdel-Shakour, M., Wang, J. F., Wang, H. & Meng, X. Y. Lead-free perovskites for indoor photovoltaics. Appl. Phys. Lett. 127, 163312 (2025).
Google Scholar
Haridas, R. et al. Indoor light-harvesting dye-sensitized solar cells surpassing 30% efficiency without co-sensitizers. Mater. Adv. 2, 7773–7787 (2021).
Google Scholar
Elmorsy, M. R. et al. High-efficiency tandem DSSCs based on tailored naphthalene sensitizers for indoor DSSC efficiency above 25%. Sci. Rep. 15, 44135 (2025).
Google Scholar
Juang, S. S. Y. et al. Energy harvesting under dim-light condition with dye-sensitized and perovskite solar cells. Front. Chem. 7, 209 (2019).
Google Scholar
Tian, H. N. et al. Efficient organic-dye-sensitized solar cells based on an iodine-free electrolyte. Angew. Chem. Int. Ed. 49, 7328–7331 (2010).
Google Scholar
Ibrayeva, A. et al. Enhancing the stability and efficiency of dye-sensitized solar cells with MIL-125 metal-organic framework as an electrolyte additive. Sci. Rep. 15, 5883 (2025).
Google Scholar
Hao, F. et al. Lead-free solid-state organic–inorganic halide perovskite solar cells. Nat. Photonics 8, 489–494 (2014).
Google Scholar
Shalan, A. E. Challenges and approaches towards upscaling the assembly of hybrid perovskite solar cells. Mater. Adv. 1, 292–309 (2020).
Google Scholar
Xu, Y. B. et al. Structural design for efficient perovskite solar modules. Sol. RRL 5, 2000733 (2021).
Google Scholar
Dai, X. et al. Pathways to high efficiency perovskite monolithic solar modules. PRX Energy 1, 013004 (2022).
Google Scholar
Helmers, H. et al. Processing techniques for monolithic interconnection of solar cells at wafer level. IEEE Trans. Electron Devices 57, 3355–3360 (2010).
Google Scholar
Raza, U., Kulkarni, P. & Sooriyabandara, M. Low power wide area networks: an overview. IEEE Commun. Surv. Tutor. 19, 855–873 (2017).
Google Scholar
Yu, H. & Yue, Q. Q. Indoor light energy harvesting system for energy-aware wireless sensor node. Energy Procedia 16, 1027–1032 (2012).
Google Scholar
Sim, Y. H. et al. Lighting-environment-adjustable block-type 3D indoor PV for wireless sensor communication. Sci. Rep. 13, 17846 (2023). This study demonstrated a lighting-adaptive three-dimensional indoor PV system for wireless sensor communication, linking cell performance to practical deployment.
Google Scholar
European Commission. Restriction of Hazardous Substances in Electrical and Electronic Equipment (RoHS). https://environment.ec.europa.eu/topics/waste-and-recycling/rohs-directive_en (2011).
European Commission. REACH Regulation. https://environment.ec.europa.eu/topics/chemicals/reach-regulation_en?utm_source (2016).
Michaels, H., Benesperi, I. & Freitag, M. Challenges and prospects of ambient hybrid solar cell applications. Chem. Sci. 12, 5002–5015 (2021).
Google Scholar
Georgiou, O., Mimis, K., Halls, D., Thompson, W. H. & Gibbins, D. How many Wi-Fi APs does it take to light a lightbulb? IEEE Access 4, 3732–3746 (2016).
Google Scholar
Lin, H. et al. Silicon heterojunction solar cells with up to 26.81% efficiency achieved by electrically optimized nanocrystalline-silicon hole contact layers. Nat. Energy 8, 789–799 (2023).
Google Scholar
Ru, X. et al. Silicon heterojunction solar cells achieving 26.6% efficiency on commercial-size p-type silicon wafer. Joule 8, 1092–1104 (2024).
Google Scholar
Xie, Y. et al. Regulating perovskite crystallization kinetics at laser scribe lines for efficient and stable perovskite modules. Nat. Commun. 17, 2977 (2026).
Google Scholar
Liu, Y. et al. Stabilized perovskite ink for scalable coating enables high-efficiency perovskite modules. Sci. Adv. 12, eaec0915 (2026).
Google Scholar
Welser, R. E. et al. in Solar Cells – New Approaches and Reviews (ed. Kosyachenko, L. A.) 247–277 (IntechOpen, 2015).
Mariani, P. et al. Graphene-based interconnects for stable dye-sensitized solar modules. ACS Appl. Energy Mater. 4, 98–110 (2021).
Google Scholar
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