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The floral supply chain is one of the most delicate logistics networks in existence, requiring intensive monitoring of temperature, humidity, and product conditions to ensure the quality of flowers. However, the traditional centralized supply chain involves exchanging information back and forth, and therefore wastes time, money, and resources. In addition, centralized data control without security verification exposes logistics information to the risk of hacking, information tampering, and counterfeiting. Blockchain technology offers decentralization, immutability, and encryption security. Furthermore, application of Internet of Things (IoT) technology has made it easier to monitor goods and the distribution process. Combining the above two new technologies can effectively improve the transparency and traceability of the floral supply chain and make transactions more secure through the digital signature verification process. In this research, we propose a smart contract for the floral supply chain. Through contract compilation, the proposed contract defines the delivery process status, delivery specifications, and other conditions in the shipping process so that the status of the goods is updated on the blockchain, giving the supply chain higher traceability. This study also defines the process for and conditions of money transactions between buyers and sellers using such smart contracts, thereby automating the transaction, improving its efficiency, and saving on labor costs and paper waste. This research also compares the proposed smart contract to traditional transaction methods. The pros and cons are thoroughly discussed, offering significant benefit to decision makers. [ABSTRACT FROM AUTHOR]

Organic electrochemical transistors (OECTs) are recognized for their ability to combine electronic and ionic transport in the channel, resulting in improved transconductance and reduced operation voltage compared to organic field‐effect transistors (OFETs). Nevertheless, the hydrophobic nature of conjugated polymers remains a hindrance to ion drift, thereby causing slow switching speed and limiting their practical application. This study introduces the ionic liquid 1‐ethyl‐3‐methylimidazolium bis(trifluoromethylsulfonyl)imide ([EMIM][TFSI]) adsorbed in a metal–organic framework (MOF‐525) as an ion reservoir within a conjugated polymer, for the first time, to serve as the active channel in OECTs. Due to shortened ionic drift time, in the poly[2,5‐bis(3‐tetradecylthiophen‐2‐yl)thieno[3,2‐b]thiophene] (PBTTT‐C14) system, the original polymer membrane without MOF‐525/[EMIM][TFSI] exhibits a characteristic ON time (τON) of 28.75 s, whereas the PBTTT‐C14/MOF‐525/[EMIM][TFSI] composite film significantly reduces the τON to 2.56 s with ON/OFF current ratio of 102. Enhancing response speed through facile physical blending of MOF‐525/[EMIM][TFSI] in conjugated polymer film can also be realized on flexible substrate and in poly(3‐hexylthiophene‐2,5‐diyl) (P3HT) system which provide a general strategy to broaden the selection of conjugated polymers in accumulation mode OECTs. [ABSTRACT FROM AUTHOR]