The emergence of organic electronics has transformed the landscape of electronic devices, paving the way for future advancements

in low-power, fl exible, and wearable electronics compatible with various form factors. Polymeric dielectric layers are

pivotal in the implementation of organic electronics due to their inherent deformable characteristics as well as outstanding

insulating performance. Here, the review highlights an innovative technology termed initiated chemical vapor deposition

(iCVD) for synthesizing polymer dielectric materials, particularly in the context of organic thin-fi lm transistors (OTFTs).

The all-dry polymer deposition process circumvents issues associated with conventional solvent-based methods, such as

residual solvent, potential damage to the substrate, and the lack of large-area uniformity, allowing for ultra-thin, high-purity

polymer dielectric layers with exceptional dielectric performance comparable to inorganic dielectrics. Furthermore, iCVD

process enables the incorporation of various chemical functionalities into the dielectric layer, which enables the generation

of versatile, high-performance organic electronic devices. Based on the benefi cial aspects of the iCVD process, the review

provides an overview of iCVD polymer dielectric layers, emphasizing their signifi cance and potential toward innovative

applications in the fi elds of organic electronic, including OTFTs, resistive random-access memory (RRAM), fl ash memory

and logic circuits.