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황해중,이예슬,권낙현,김수현,유영돈,이혜진 한국수소및신에너지학회 2022 한국수소 및 신에너지학회논문집 Vol.33 No.6
At the present time, interest in hydrogen is increasingly growing worldwide to tackle climate change. Korea also takes an action by announcing the first hydrogen economy implementation basic plan with the import targets of 22.9 million tons of hydrogen from oversea in 2050. To achieve this plan, it is very essential to establish an overseas hydrogen supply chain. In this paper, the study estimates the import price for hydrogen into basic scenario and comprehensive scenario, and also analyses economic feasibility considering price of the each technology.
Design of Orthogonal Polymer Semiconductors for Solution Tandem Electronics
박한울,최근영,황해중,강문성,이호진,김도환 한국공업화학회 2018 한국공업화학회 연구논문 초록집 Vol.2018 No.0
In this talk, we describe a novel orthogonal polymer semiconductor (OPS) that is capable of showing chemical and mechanical tolerance during multiple solution coating and photolithography processes. The critical step in a sol-gel reaction is the formation of a highly cross-linked network out of molecular precursors through hydrolysis and condensation reactions. By carefully manipulating this step, we could prepare self-assembled structures of either quasi-3D random or ladder characteristics. The resulting structures yielded films that are highly tolerant against harsh external stimuli. Consequently, we could demonstrate that sub-micron patterning and forming of tandem structures of OPS can be done readily through conventional photolithography with sequential solution and etching processes, and finally fabricate tandem electronic devices including a pn-complimentary inverter logic and pixelated polymer light-emitting diodes.