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A Highly Crystalline Semiconducting Polymers by Using Eutectic Friction Transfer Lithography
엄상원,박소영,강영종 한국고분자학회 2021 한국고분자학회 학술대회 연구논문 초록집 Vol.46 No.1
We report a solid-state lithography technique utilizing the eutectic friction transfer (EFT). eutectic friction transfer (EFT) is based on the eutectic melting by frictional heating at the interface between the pellet made of semiconducting polymer/matrix mixture and the substrate. Due to the significantly lowered melting temperature by formation of eutectic mixtures (< 65 °C), various semiconducting polymers can be easily melted and transferred on the substrate simply by rubbing the pellet on the substrate. in this case, semiconducting polymer chains can be uniaxially aligned and crystallized by the frictional shear force. Various semiconducting polymer crystals formed by simple rubbing process at mild condition. Strong anisotropic optical properties suggest that J-type packing is dominant in EFTL microwires because of the highly extended and planarized crystal structures.
엄상원,박소영,Ngoc Bao Tran,강영종 한국고분자학회 2021 한국고분자학회 학술대회 연구논문 초록집 Vol.46 No.2
With usage of semiconducting poylmer increasing, various polymer alignment techniques have been developed to improve their electrical and optical properties. In this study, we report a solid-state lithography technique utilizing the eutectic friction transfer (EFT). Eutectic friction transfer lithography (EFTL) technique employs the eutectic pellets made of semiconducting polymers and volatile organic solid matrixes. With utilizing frictional heating and eutectic melting, various semiconducting polymer cryastals formed by simple rubbing process at mild condition. Strong anisotropic optical properties suggest that J-type packing is dominant in EFTL microwires because of the highly extended and planarized crystal structures.