Business Incubators and Entrepreneurship in Korea : Analyzing Historical Development and Current Situation

This paper examines the overall status and differences of business incubators in Korea. The successful incubation of new firms can contribute to job creation and regional economic development. In the past decade, many new business incubators have been established in Korea with strong government support. This paper reviews how they have developed and what characteristics they have. Based on the data of 263 business incubators in Korea, this paper analyzes the systematic differences in resource endowments and performances by size, sponsoring organization, and geographical location. The results show that there are significant performance differences among business incubators in Korea.The implications of these results are studied and ways to improve the performance of business incubators are suggested

Synthesis and study of oxides and chalcogenides : thin films and crystals

Several types of solid-state inorganic materials are prepared and characterized. By using the SILAR (Successive Ionic Layer Adsorption and Reaction) deposition method in conjunction with hydrothermal dehydration both low-temperature deposition and crystallization of oxide thin films are achieved. Various aspects of new transparent p-type materials are studied by examining both powders and thin films. Delafossite type compounds, CuMO₂₊₈ (M=Ga, Sc, In), are synthesized by unique methods, yielding single-phase materials. The conductivity, mobility, and carrier concentration in BaCu₂S₂ thin films are described and p-type conductivity in the wide band-gap sulfide fluoride, BaCuSF, is examined. Structural and conducting properties of the various polymorphs of In₂Se₃ and the related structure of Sb₂Te₂Se are considered. Structural characterization and cation ordering in Langasite derivatives, La₃SnGa₅O₁₄ and La₃SnGa₃Al₂O₁₄, is described. Finally, selected aspects of the synthesis, structural characterization, and luminescence properties of Y₃(SiO₄)₂Cl, Mn:Zn₂SiO₄, and Eu:Y₆WO₁₂ are summarized

p-type conductivity in wide-band-gap BaCuQF (Q=S,Se)

BaCuQF (Q=S,Se) materials, candidate transparent p-type conductors, were prepared by solid-state reaction, and their bulk electrical and optical properties were evaluated. The room-temperature Seebeck coefficient and electrical conductivity of undoped BaCuQF pellets were +56 μV/K and 0.088 S/cm, respectively, for the sulfide fluoride, and +32 μV/K and 0.061 S/cm, respectively, for the selenide fluoride. The conductivity was greatly enhanced by the substitution of several percent of K for Ba; the highest conductivities were 82 S/cm for Ba₀.₉K₀.₁CuSF and 43 S/cm for Ba₀.₉K₀.₁SeF. The band gaps for Q=S and Q=Se were measured to be 3.2 and 3.0 eV, respectively. Undoped BaCuSF exhibits strong red luminescence near 630 nm under ultraviolet excitation.Article appears in Applied Physics Letters (http://apl.aip.org/) and is copyrighted by American Institute of Physics (http://www.aip.org/)

Novel Synthesis and High Pressure Behavior of Na0.3CoO2 x 1.3 H2O and Related Phases

We have prepared powder samples of NaxCoO2 x yH2O using a new synthesis route. Superconductivity was observed in Na0.3CoO2 x 1.3H2O between 4 and 5K as indicated by the magnetic susceptibility. The bulk compressibilities of Na0.3CoO2 x 1.3H2O, Na0.3CoO2 x 0.6H2O and Na0.3CoO2 were determined using a diamond anvil cell and synchrotron powder diffraction. Chemical changes occurring under pressure when using different pressure transmitting media are discussed and further transport measurements are advocated.Comment: 7 pages, 4 figures, PRrapid submitte

Valence band structure of BaCuSF and BaCuSeF

The origin of high hole conduction in BaCuQF (Q=S,Se) was investigated by photoemission measurements and full-potential linearized augmented plane wave band-structure calculations. In both compounds, the large dispersion near the top of the valence band is realized by admixed states of Cu 3d and S 3p or Se 4p orbitals, indicating that high hole mobility is possible. In addition, the valence band maxima of BaCuQF are much closer to the vacuum level than most p-type transparent oxides, which leads to high hole stability in the valence band. The high hole mobility and stability in BaCuQF relative to most oxides afford a significantly larger p-type conductivity.This is the publisher’s final pdf. The published article is copyrighted by the American Institute of Physics and can be found at: http://scitation.aip.org/content/aip/journal/jap. Article Copyright (2006) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics

Preparation of large Cu3Sn single crystal by Czochralski method

Cu3Sn was recently predicted to host topological Dirac fermions, but related research is still in its infancy. The growth of large and high-quality Cu3Sn single crystals is, therefore, highly desired to investigate the possible topological properties. In this work, we report the single crystal growth of Cu3Sn by Czochralski (CZ) method. Crystal structure, chemical composition, and transport properties of Cu3Sn single crystals were analyzed to verify the crystal quality. Notably, compared to the mm-sized crystals from a molten Sn flux, the cm-sized crystals obtained by the CZ method are free from contamination from flux materials, paving the way for the follow-up works

Geographic Boundary of Open Innovation: Sources Within and Beyond Cluster

Atlanta Conference on Science and Innovation Policy 2009This presentation was part of the session : Organizations of Science and Innovatio

The Regional Determinants of the New Venture Formation in China’s Car-Sharing Economy

New ventures play an important role in promoting regional economic growth, employment and innovative development. In China, the new business model centered on the sharing economy has grown rapidly in a short time, especially with regard to car-sharing, which has become one of the new governmental strategies to promote economic development in China. New car-sharing ventures have been recognized as the leading sector in sustainable development for the circular economy and resource reuse. This paper explores the regional determinants of new firm formation in the nascent car-sharing industry in China. We used panel data from 449 car-sharing new ventures established in 257 cities in China from 2011 to 2019 to conduct an empirical analysis. The findings show that the urbanization economy, human capital and venture capital in the region have a positive impact on the establishment of new ventures. At the same time, the regional population density, localization economy, innovation capacity and competitive environment have no significant relationships with the establishment of new car-sharing firms. This paper provides insights for startups entering the field of car-sharing and a theoretical basis for the subsequent research on startups in the sharing economy industry