“…Flexible devices for sustainable electronics have been considered as appealing contenders for next-generation smart, eco-friendly, and low-cost electronics − due to their applicability in a broad range of applications such as flexible OLED displays, RFID tag, e-skin, e-textile, and edible electronics . Moreover, due to tremendous technological advances and the benefits of using plastics for flexible devices in the form of substrates, various scientific, technological, and environmental challenges, such as an increase in electronic waste (e-waste), , need a demonstration of ecosustainable and recyclable products. , In general, plastic has been used invariably in rigid as well as flexible electronics as packaging or lamination materials and substrates, which create severe environmental pollution. , To address this, paper has been proposed as the most eco-friendly substrate for fabrication of electronic devices due to its flexibility, surface smoothness, low cost, and biodegradability. ,, In addition, paper is ∼20 times lower in cost than the routinely used plastic substrates such as polyethylene terephthalate (PET) or polyimide (PI), making it a most affordable alternative .…”