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Archive | 2015

CHAPTER 5:Nonconjugated Polymers with Electroactive Chromophore Pendants

Moonhor Ree; Yong-Gi Ko; Sungjin Song; Brian J. Ree

Recently, polymers have attracted significant attention because their dimensions can easily be miniaturized and their properties can easily be tailored through chemical synthesis, which are critical advantages over inorganic silicon- and metal-oxide-based materials for memory device applications. In this chapter, the recent development of nonconjugated polymers with electroactive chromophore pendants is reviewed. Their memory mode and performance are discussed with insights into their switching mechanisms. Many p-type polymers have been reported in the literature whereas n-type polymers are rare. Thus, there is a need to put more effort into developing high performance n-type memory polymers. In addition, it is noted that understanding the detailed relationships between chemical and morphological structures, electrical memory mode, and performance remains an urgent challenge to the progress of developing higher memory performance polymers.


Journal of Physical Chemistry C | 2011

Morphology-Dependent Electrical Memory Characteristics of a Well-Defined Brush Polymer Bearing Oxadiazole-Based Mesogens

Wonsang Kwon; Byungcheol Ahn; Dong Min Kim; Yong-Gi Ko; Suk Gyu Hahm; Youngkyoo Kim; Hwajeong Kim; Moonhor Ree


Journal of Physical Chemistry C | 2011

Electrical Memory Characteristics of Nitrogen-Linked Poly(2,7-carbazole)s

Suk Gyu Hahm; Taek Joon Lee; Dong Min Kim; Wonsang Kwon; Yong-Gi Ko; Tsuyoshi Michinobu; Moonhor Ree


Npg Asia Materials | 2013

Organic nonvolatile memory transistors with self-doped polymer energy well structures

Sungho Nam; Yong-Gi Ko; Suk Gyu Hahm; Soohyeong Park; Jooyeok Seo; Hyena Lee; Hwajeong Kim; Moonhor Ree; Youngkyoo Kim


Npg Asia Materials | 2015

High-performance triazole-containing brush polymers via azide–alkyne click chemistry: a new functional polymer platform for electrical memory devices

Sungjin Song; Yong-Gi Ko; Hoyeol Lee; Dongwoo Wi; Brian J. Ree; Yongrong Li; Tsuyoshi Michinobu; Moonhor Ree


Current opinion in chemical engineering | 2013

Programmable digital polymer memories

Suk Gyu Hahm; Yong-Gi Ko; Wonsang Kwon; Moonhor Ree


ACS Macro Letters | 2013

Tunable Film Morphologies of Brush–Linear Diblock Copolymer Bearing Difluorene Moieties Yield a Variety of Digital Memory Properties

Byungcheol Ahn; Dong Min Kim; Jung-Ching Hsu; Yong-Gi Ko; Tae Joo Shin; Jehan Kim; Wen-Chang Chen; Moonhor Ree


Macromolecules | 2014

New Fullerene-Based Polymers and Their Electrical Memory Characteristics

Yong-Gi Ko; Suk Gyu Hahm; Kimie Murata; Young Yong Kim; Brian J. Ree; Sungjin Song; Tsuyoshi Michinobu; Moonhor Ree


Current opinion in chemical engineering | 2013

Liquid crystal alignment in advanced flat-panel liquid crystal displays

Suk Gyu Hahm; Yong-Gi Ko; Yecheol Rho; Byungcheol Ahn; Moonhor Ree


Science of Advanced Materials | 2014

Self-Assembly and Digital Memory Characteristics of an Oxadiazole-Containing Brush Polymer in Nanoscale Thin Films

Wonsang Kwon; Byungcheol Ahn; Yongjin Kim; Young Yong Kim; Brian J. Ree; Yong-Gi Ko; Jin-Seok Lee; Moonhor Ree

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Moonhor Ree

Pohang University of Science and Technology

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Wonsang Kwon

Pohang University of Science and Technology

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Dong Min Kim

Pohang University of Science and Technology

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Suk Gyu Hahm

Pohang University of Science and Technology

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Byungcheol Ahn

Pohang University of Science and Technology

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Brian J. Ree

Pohang University of Science and Technology

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Sungjin Song

Pohang University of Science and Technology

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Taek Joon Lee

Pohang University of Science and Technology

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Jin Chul Kim

Pohang University of Science and Technology

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Jun Man Choi

Pohang University of Science and Technology

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