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Dive into the research topics where Sang-Ho Cha is active.

Publication


Featured researches published by Sang-Ho Cha.


Journal of the American Chemical Society | 2009

Reversible formation and dissolution of gold nanoparticles through turning on and off sequences of UV light.

Ki-Hyun Kim; Jong-Uk Kim; Sang-Ho Cha; Jong-Chan Lee

Reversible formation and dissolution of gold nanoparticles through turning on and off UV light was reported. Gold ions (Au(3+)) were reduced to monodispersed gold nanoparticles by UV irradiation from a mixture of comb-like poly(oxyethylene)s and a gold salt. The prepared gold nanoparticles dissolved to yield gold ions (Au(3+)) when the UV light was switched off. Such formation and dissolution could be repeated persistently by turning the UV light on and off repeatedly.


Advanced Materials | 2004

Preparation of gold nanowires and nanosheets in bulk block copolymer phases under mild conditions

Jong-Uk Kim; Sang-Ho Cha; Kyusoon Shin; Jae Young Jho; Jong-Chan Lee


Chemistry of Materials | 2007

Preparation and Photoluminescent Properties of Gold(I)-Alkanethiolate Complexes Having Highly Ordered Supramolecular Structures

Sang-Ho Cha; Jong-Uk Kim; Ki-Hyun Kim; Jong-Chan Lee


Journal of the American Chemical Society | 2005

Synthesis of gold nanoparticles from gold(I)-alkanethiolate complexes with supramolecular structures through electron beam irradiation in TEM.

Jong-Uk Kim; Sang-Ho Cha; Kyusoon Shin; Jae Young Jho; Jong-Chan Lee


Macromolecules | 2015

Cross-Linked Sulfonated Poly(arylene ether sulfone) Membranes Formed by in Situ Casting and Click Reaction for Applications in Fuel Cells

Taeyun Ko; Ki-Hyun Kim; Bo-Kyung Jung; Sang-Ho Cha; Sung-Kon Kim; Jong-Chan Lee


Journal of Physical Chemistry C | 2008

Thermal Behavior of Gold(I)−Thiolate Complexes and Their Transformation into Gold Nanoparticles under Heat Treatment Process

Sang-Ho Cha; Ki-Hyun Kim; Jong-Uk Kim; Won-Ki Lee; Jong-Chan Lee


Journal of Solid State Chemistry | 2009

Shape-controlled synthesis of gold icosahedra and nanoplates using Pluronic P123 block copolymer and sodium chloride

Won-Ki Lee; Sang-Ho Cha; Ki-Hyun Kim; Byung-Woo Kim; Jong-Chan Lee


Macromolecular Research | 2011

Synthesis of ArF photoresist polymer composed of three methacrylate monomers via reversible addition-fragmentation chain transfer (RAFT) polymerization

Hae-Sung Sohn; Sang-Ho Cha; Won-Ki Lee; Dong-Gyun Kim; Hyo-Jin Yun; Myung-sun Kim; Boo-Deuk Kim; Young-Ho Kim; Jae-Woo Lee; Jeong-Sik Kim; Deog-Bae Kim; Jae-Hyun Kim; Jong-Chan Lee


Macromolecular Rapid Communications | 2004

Amphiphilic Comb‐Like Poly(oxyethylene) and Its Complexes with LiClO4: Synthesis and Mesomorphic Behavior

Jong-Uk Kim; Sang-Ho Cha; Jong-Chan Lee


Materials Science and Engineering B-advanced Functional Solid-state Materials | 2007

Preparation of gold nanosheets using poly(ethylene oxide)-poly (propylene oxide)-poly(ethylene oxide) block copolymers via photoreduction

Sang-Ho Cha; Jong-Uk Kim; Ki-Hyun Kim; Jong-Chan Lee

Collaboration


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Jong-Chan Lee

Seoul National University

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Won-Ki Lee

Seoul National University

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Jong-Uk Kim

Seoul National University

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Jong-Uk Kim

Seoul National University

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Jae Young Jho

Seoul National University

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Bo-Kyung Jung

Seoul National University

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