• Applied Science and Convergence Technology
• /
• v.23 no.6
• /
• pp.351-356
• /
• 2014

The electronic structure at organic-organic interface gives essential information on device performance such as charge transport and mobility. Especially, the molecular orientation of organic material can affect the electronic structure at interface and ultimately the device performance in organic photovoltaics. The molecular orientation is examined by the change in ionization potential (IP) for metal phthalocyanines (MPc, M=Zn, Cu)/fullerene ($C_{60}$) interfaces on ITO by adding the CuI templating layer through ultraviolet photoelectron spectroscopy measurement. On CuPc/$C_{60}$ bilayer, the addition of CuI templating layer represents the noticeable change in IP, while it hardly affects the electronic structure of ZnPc/$C_{60}$ bilayer. The CuPc molecules on CuI represent relatively lying down orientation with intermolecular ${\pi}-{\pi}$ overlap being aligned in vertical direction. Consequently, in organic photovoltaics consisting of CuPc and $C_{60}$ as donor and acceptor, respectively, the carrier transport along the direction is enhanced by the insertion of CuI templaing layer. In addition, optical absorption in CuPc molecules is increased due to aligned transition matrix elements. Overall the lying down orientation of CuPc on CuI will improve photovoltaic efficiency.

• The Journal of Asian Finance, Economics and Business
• /
• v.7 no.8
• /
• pp.473-483
• /
• 2020

Internationalization of SMEs has gathered pace in recent times with falling trade barriers and rising world trade encouraging small firms to seek profits and growth in foreign markets. This has attracted the attention of researchers, and several studies have been conducted in Western nations on the factors influencing the process of SME internationalization. However, hardly any study has been done on SME internationalization in the Gulf Cooperative Council (GCC) region, thus leaving a gap in the literature. This study investigates the influence of four factors, namely, human capital, network competency, entrepreneurial orientation, and market volatility on the degree of internationalization of SMEs in Oman. The study employs survey data collected from 150 SME owners and managers using a structured questionnaire having 27 items, and has been analyzed using correlation and logistic regression, as the dependent variable is binary in nature. The results reveal the impact of the chosen variables on the degree of internationalization of SMEs. The findings of the study suggest that network competency has the highest impact on degree of internationalization of Omani SMEs, followed by human capital and entrepreneurial orientation, while market volatility, though insignificant, moderated the relationship between entrepreneurial orientation and degree of internationalization of Omani SMEs.

• The Korean Journal of Franchise Management
• /
• v.8 no.1
• /
• pp.5-18
• /
• 2017

Purpose - Although literature has established the relevance of entrepreneurial orientation(EO) in the performance of conventional firms, the constraining nature of franchise arrangement makes one wonders if the same relationship holds for companies operating under the business model. Research design, data, and methodology - Using Nigeria - a country with high potential for franchise growth - as a context, this study aims to explore the relevant entrepreneurial orientation skills exhibited by franchisees and show the extent to which these skills influence their business performance and intention to remain. 26 franchisees purposively selected from six local franchise brands in Nigeria were interviewed. Result and Conclusions - The three classic entrepreneurial orientation factors of innovativeness, proactiveness and risk-taking were found to have varying influence on franchisees' business outcomes. This study answers the calls for more in-depth understanding of the relationship between EO and firm performance generally and, franchise firm performance in particular. The value of this effort lies in the fact that it strengthens theory and updates literature on the subject. Based on the findings, specific recommendations are offered to help improve the practice of franchising in Nigeria.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
• /
• v.15 no.1
• /
• pp.125-141
• /
• 2020

This study examines the effect of founders' strategic orientation and social capital on the performance of startups in Korean contexts. Founders' strategic orientation is proposed as the main factor to reduce the risk of failure and to increase the potential of future growth of the startup. Three main components of strategic orientation, entrepreneurial, market, technology, were simultaneously tested with a sample of Korean startups. Furthermore, founders' social capital, networks with supporting entities and the level of chemistry within founding members were also proposed to be important factors. We also tested possible mediating effects of social capital on the main impact of strategic orientation. With a sample of 79 startups founded less than 5 years in Seoul Metropolitan Areas, we found that technology orientation of founders only significantly increases the performance of startups, but both entrepreneurial and market orientation do not. Regarding social capital effect, the external networks of the founding members are effective as proposed, and also the high cohesiveness of founding members increases the startup performance. However, the mediating role of social capital is just partially confirmed. The implications of our findings, in both sense of firm's strategy and startup policy, are discussed. This study is expected to be a bridge connecting firms' strategy with startup policy-making in Korea.

• Journal of Global Scholars of Marketing Science
• /
• v.11
• /
• pp.103-128
• /
• 2003

As the service market is increasingly competitive, internal marketing, marketing orientation, and customer satisfaction are becoming a crucial issue to the survival and growth of the service firms. This Study examined the structure modeling of internal marketing, market orientation, and customer satisfaction to verify the relationship among construct variables. Conslusively, the higher degree of internal marketing and market orientation, the higher degree of customer satisfaction. Specifically, The positive impact of internal marketing, customer orientation and competitor orientation on customer satisfaction is verified respectively. But, the impact of interfunctional coordination on customer satisfaction is rejected. The company is required to intensify interfunctional coordination in company operation process to boost sustainable competative advantage.

• Journal of Powder Materials
• /
• v.20 no.1
• /
• pp.19-23
• /
• 2013

Ru films were successfully prepared by plasma-enhanced atomic layer deposition (PEALD) using $Ru(EtCp)_2$ and $NH_3$ plasma. To optimize Ru PEALD process, the effect of growth temperature, $NH_3$ plasma power and $NH_3$ plasma time on the growth rate and preferred orientation of the deposited film was systemically investigated. At a growth temperature of $270^{\circ}C$ and $NH_3$ plasma power of 100W, the saturated growth rate of 0.038 nm/cycle was obtained on the flat $SiO_2$/Si substrate when the $Ru(EtCp)_2$ and $NH_3$ plasma time was 7 and 10 sec, respectively. When the growth temperature was decreased, however, an increased $NH_3$ plasma time was required to obtain a saturated growth rate of 0.038 nm/cycle. Also, $NH_3$ plasma power higher than 40 W was required to obtain a saturated growth rate of 0.038 nm/cycle even at a growth temperature of $270^{\circ}C$. However, (002) preferred orientation of Ru film was only observed at higher plasma power than 100W. Moreover, the saturation condition obtained on the flat $SiO_2$/Si substrate resulted in poor step coverage of Ru on the trench pattern with an aspect ratio of 8:1, and longer $NH_3$ plasma time improved the step coverage.

• Journal of the Korean Crystal Growth and Crystal Technology
• /
• v.27 no.2
• /
• pp.80-88
• /
• 2017

In this research a time dependent thermal and solutal convection was computationally investigated for the physical vapor transport of the mixture of $Hg_2Cl_2-I_2$ system with for the convective regime from thermal Rayleigh number of $2.16{\times}10^6$ up to $1.7{\times}10^7$ with marching time to a steady state problem. With time marching, the convective cells are decreased for the thermal Rayleigh number of $2.16{\times}10^6$, and increased for the thermal Rayleigh number of $1.7{\times}10^7$. The convective flow structures are found to be essentially time independent on the horizontal orientation of the enclosure with respect to the gravity vector, and on the other hand, time dependent on the vertical orientation of the enclosure with respect to the gravity vector.

• Journal of the Korean Ceramic Society
• /
• v.28 no.10
• /
• pp.777-784
• /
• 1991

Diamond films have been growth by the hot-filament chemical vapor deposition (HFCVD) using CH4 and H2 gaseous mixture on the Si substrate. The experimental results indicated that the deposits were pure diamond and contained no amount of non-diamond phases such as amorphous carbon or graphite. The diamond films were deposited well at the conditions: the filament temperature of 210$0^{\circ}C$, the substrate temperature of 77$0^{\circ}C$, the CH4 concentration of 1.76%, the reactor pressure of 30 torr, and the deposition time of 7 hr. At this growth condition, the maximum deposition rate was 2 ${\mu}{\textrm}{m}$/hr. X-ray diffraction patterns and texture coefficient results showed that preferred orientation of the diamond films was {111} orientation under all experimental conditions.

• Proceedings of the Korean Magnestics Society Conference
• /
• 2009.12a
• /
• pp.203-203
• /
• 2009

We report on the epitaxial growth of tetragonal $DO_{22}$-type Mn3Ga films on GaSb (001) using molecular beam epitaxy and the related structural and magnetic properties. The as-studied $Mn_3Ga$ film was found to exhibit relatively small coercivity around 400 Oe, which differs greatly from the hard magnetic properties of $Mn_3Ga$ bulk specimen or films that are normally reported. This difference was probably attributed to the effects of the GaSb (001) substrate that forced the $Mn_3Ga$ film to be two-dimensionlly stabilized in the (114) orientation and thus led to the modified intrinsic properties of $Mn_3Ga$ films. The growth orientation of the Mn3Ga (114)//GaSb (001) also caused the easy magnetocrystalline direction located in the film plane due to the dominant shape anisotropy in the thin films.

• Journal of the Korean Ceramic Society
• /
• v.30 no.8
• /
• pp.643-650
• /
• 1993

NdAl3(BO3)4 have been developed for miniature solid state laser material. Single crystals of NdAl3(BO3)4 were grown by TSSG technique using BaB4O7 flux. The effects of growth conditions such as cooling rate, seed orientation and rotation speed on crystal quality and the morphology were studied. At the cooling rate of 2.4$^{\circ}C$/day and the crystal rotation speed of 30~40rpm with the seed orientation in <201> or <100> directions, transparent and light violet colored crystals in size of 10$\times$15$\times$20㎣ with well developed {010}, {111}, {111}, {021}, {001}, {102}, {112}, {021} faces were obtained. By X-ray diffraction analysis, the space group was determined as C2/c, and the X-ray powder data was obtained.