In the recent years, thin film solar cells (TFSCs) have emerged as a viable replacement for crystalline silicon solar cells and offer a variety of choices, particularly in terms of synthesis processes and substrates (rigid or flexible, metal or insulator). Among the thin-film absorber materials, SnS has great potential for the manufacturing of low-cost TFSCs due to its suitable optical and electrical properties, non-toxic nature, and earth abundancy. However, the efficiency of SnS-based solar cells is found to be in the range of 1 ~ 4 % and remains far below those of CdTe-, CIGS-, and CZTSSe-based TFSCs. Aside from the improvement in the physical properties of absorber layer, enormous efforts have been focused on the development of suitable buffer layer for SnS-based solar cells. Herein, we investigate the device performance of SnS-based TFSCs by introducing double buffer layers, in which CdS is applied as first buffer layer and ZnMgO films is employed as second buffer layer. The effect of the composition ratio (Mg/(Mg+Zn)) of RF sputtered ZnMgO films on the device performance is studied. The structural and optical properties of ZnMgO films with various Mg/(Mg+Zn) ratios are also analyzed systemically. The fabricated SnS-based TFSCs with device structure of SLG/Mo/SnS/CdS/ZnMgO/AZO/Al exhibit a highest cell efficiency of 1.84 % along with open-circuit voltage of 0.302 V, short-circuit current density of 13.55 mA cm−2, and fill factor of 0.45 with an optimum Mg/(Mg + Zn) ratio of 0.02.

Social Network Services (SNS) have become a vital means of shopping, significantly influencing consumers’ purchases of fashion products. The aim of this study was to identify bandwagon consumption among fashion consumers and to analyze the effects of bandwagon consumption on negative emotions, purchase discontinuation, and switching intention. A survey questionnaire was developed, and data were obtained from 285 female consumers in Korea aged in their 20s and 30s who had experienced guilt, regret, or disappointment after purchasing fashion products using SNS during the previous six months. The survey results indicated four different types of bandwagon consumption: intentional, impulsive, unintentional, and planned. The presence of negative emotions such as guilt, disappointment, and regret were affected by different types of bandwagon consumption. Intentional bandwagon consumption only affected guilt, while unintentional bandwagon consumption affected both guilt and disappointment. Impulsive bandwagon consumption affected guilt and regret; however, planned bandwagon consumption only affected regret. Furthermore, negative emotions affected purchase discontinuation and switching intention. Planned bandwagon consumption had an effect on both purchase discontinuation and switching intention, while both impulsive and unintentional bandwagon consumption influenced switching intention only. Intentional bandwagon consumption had no effect on either purchase discontinuation or switching intention. The results of this study indicate that SNS consumers’ bandwagon consumption causes different negative emotions, purchase discontinuation, and switching intention.

Due to its favorable optical properties, Cu2SnS3 (CTS) is a promising material for thin film solar cells. Doping, which modifies the absorber properties, is one way to improve the conversion efficiency of CTS solar cells. In this work, CTS solar cells with selenium doping were fabricated on a flexible substrate using sputtering method and the effect of doping on the properties of CTS solar cells was investigated. In XRD analysis, a shift in the CTS peaks can be observed due to the doped selenium. XRF analysis confirmed the different ratios of Cu/Sn and (S+Se)/(Cu+Sn) depending on the amount of selenium doping. Selenium doping can help to lower the chemical potential of sulfur. This effectively reduces the point defects of CTS thin films. Overall improved electrical properties were observed in the CTS solar cell with a small amount of selenium doping, and a notable conversion efficiency of 1.02 % was achieved in the CTS solar cell doped with 1 at% of selenium.

본 연구는 SNS(social network service)를 통한 화훼상품 구매인식과 화훼상품 이미지 선호도를 알아보고자 국내 성인남녀 311명을 대상으로 설문을 진행하였다. 소비자들이 SNS를 통해 화훼상품을 구매하는 가장 큰 이유로는 트렌드에 맞는 디자인을 판매하기 때문이며, 해당 항목에 대하여 20대가 가장 높은 평균으로 나타났다. 연령에 따라 20대와 30대의 응답자는 40대에 비해 SNS를 통해 판매하는 화훼상품의 가격이 덜 합리적이라고 생각하였으며, 50대 이상의 연령에서는 SNS를 통해 판매하는 화훼상품의 품질과 꽃의 신선도에 대해 낮게 신뢰하는 것으로 나타났다. 응답자들은 SNS에 게시된 화훼 상품의 이미지가 구매할 상품 선택에 많은 도움을 준다고 인식하였으며, SNS상의 화훼상품 이미지에 대해 긍정적으로 생각하는 것을 알 수 있었다. 또한 화훼상품의 이미지가 보정효과로 다듬어진 것이라고 인식하였으나, 실제 상품과 비슷할 것이라고 생각하는 경향을 보였다. 화훼상품 구매결정에 영향을 미치는 이미지 특성으로는 전체적인 분위기가 가장 중요하다고 인식하였으며, 절화 화훼상품 이미지에서 꽃다발과 꽃바구니 화훼상품에 따라 선호하는 배경에 약간의 차이가 나타났다. 구도에 따른 선호도는 꽃다발과 꽃바구니 모두 정면에서 촬영한 이미지를 가장 선호하였으며, 이미지 보정에 대한 선호도에서는 밝은 느낌의 채도가 높은 이미지를 가장 선호하는 반면, 어두운 느낌의 이미지는 선호하지 않는 것으로 나타났다. 화훼상품 이미지 보정효과에 대한 감성인식을 의미변별척도법(semantic differential scale)에 따라 조사한 결과, 채도에 상관없이 밝은 느낌의 이미지는 ‘풍부한’, ‘세련된’, ‘고급스러운’, ‘기품 있는’과 같이 긍정적인 감성어휘 쪽이 높은 것으로 나타났다. 반면 어두운 느낌의 이미지는 전반적으로 부정적인 감성어휘 쪽이 높은 것으로 나타났다. 화훼상품 이미지의 배경, 구도, 보정효과에 따라 소비자의 선호도와 감성반응에 차이가 나타났으나, 소비자의 성별, 연령 및 직업 특성에 따른 유의한 차이는 없었다. 이를 통해, 소비자가 선호하는 이미지를 구축하여 SNS를 통한 화훼상품을 판매하는 것이 소비자들의 구매상품 선택에 도움이 될 것으로 확인되었다.

SNS 사용자가 급속히 증가함에 따라 기업 전체 마케팅 활동에서 SNS 마케팅이 차지하는 비중이 높아지고 있으며 SNS 광고도 새로운 마케팅 도구로 급성장하게 되었다. SNS 광고에 관한 선행 연구가 많이 진행해왔지만 SNS의 다양한 광고 형태 중 새롭게 각광받고 있는 인피드 광고에 대해 연구가 아직 부족한 현황이다. 따라서 본 논문은 중국 SNS 사용자들을 대상으로 인피드 광고의 가장 뚜렷한 3가지 특성(네이티브 콘텐츠 간의 형식의 일치성, 상호작용성과 개인맞춤성)이 인피드 광고 태도에 미치는 영향을 검증하였으며, SNS사용자들이 지각하는 프라이버시 우려 정도가 SNS 인피드 광고 태도에 미치는 조절적 영향을 검증하였다. 실증적 분석을 위해 SNS를 사용한 적이 있고 인피드 광고를 본 적이 있는 295명 중국 소비자에 대한 설문조사를 분석하였다. 연구 결과에 따르면 인피드 광고의 3가지 특성이 광고 태도에 긍정적인 영향을 미치는 것으로 나타났다. 또한 프라이버시 공개에 대한 우려는 일치성 및 상호작용성이 광고태도에 미치는 영향에 있어서 유의한 영향을 미치지 않았지만 개인맞춤성이 광고 태도에 미치는 영향에 있어서 부정적인 조절 효과를 보였다. 즉, 소비자가 개인 정보 유출에 대해 걱정할 때 개인맞춤성이 광고 태도에 미치는 긍정적인 효과를 약화시킬 수 있다. 이러한 실증적 연구는 인피드 광고 태도에 영향을 미치는 중요한 정보와 위험요소를 새로 발견하였으니 SNS 매체연구, SNS 광고연구, 그리고 국제마케팅연구의 학문적 발전에 기여할 수 있는 것으로 기대된다. 또한 중국 소비자들을 타깃으로 하는 중국기업과 중국에 진출하는 외국 기업들에게 효과적인 SNS 마케팅 전략과 SNS 광고전략을 수립하는 데에 실무적인 시사점을 제공할 수 있을 것으로 기대된다.

본 연구의 목적은 예비영유아교사의 행복감, 스마트폰 중독, SNS 중독의 관계에 대하여 알아보는 것이다. 연구 대상은 경기도 소재 4년제 및 3년제 영유아교육 관련학과에 재학 중인 남녀 대학생 220명이었다. 수집된 설문조사 결과는 SPSS 20.0을 사용하여 분석하였다. 연구 결과는 다음과 같다. 첫째, 예비영유아교사의 행복감, 스마트폰 중독, SNS 중독 정도로는 행복감에서 외적행복의 평균이 3.64(SD=.54)로 가장 높았으며 내적행복이 3.32(SD=0.73), 조절행복이 3.08(SD=0.69)로 나타났고, 스마트폰 중독에서는 내성에 대한 평균이 2.10(SD=.73)으로 가장 높았으며, 일상생활장애가 2.10(SD=.73), 금단이 2.09(SD=.71)이었으며, 가상세계지향의 평균이 1.67(SD=.63)로 가장 낮았다. SNS 중독에서는 몰입 및 내성에 대한 평균이 2.26(SD=.57) 로 가장 높았으며, 조절실패 및 일상생활장애 2.14(SD=.56), 부정정서의 회피 2.11(SD=.56)이 었으며, 가상세계지향의 평균이 1.87(SD=.48)로 가장 낮았다. 둘째, 예비영유아교사의 행복감, 스마트폰 중독, SNS 중독의 상관관계에서는 행복감이 높을수록 스마트폰 중독과 SNS 중독은 낮게 나타났고, 내적 행복감이 높을수록 몰입 및 내성, 가상세계지향성 및 금단에 대한 중독성은 낮아진다는 결과가 나왔다.

The aim of this study is to apply flipped learning in teaching General English courses in university and examine its impact on English self-efficacy and students’ English achievement. The researcher implemented flipped learning by recording videos based on the students’ textbook and up-loading those videos on the SNS before each lesson to provide opportunities for active interactions in class. The students of the experimental group (n=56) were required to learn through SNS the videos to learn in the pre-class. They also practiced what they had learned under the teacher’s supervision by completing collaborative tasks in groups or pairs. Meanwhile, the control group students (n=66) received in-class only traditional English teaching. The statistical analysis of the results showed that adopting the flipped learning strategy appeared to play a role in enhancing the students’ English self-efficacy and English achievement. Also the students’ responses indicated that their satisfaction towards the flipped learning is positive.

This study analyzed and discussed the competition relation between various media platforms, particularly fashion magazine, the Internet portal, and social networking (SNS) that provide fashion contents. The following results were obtained through this study. First, the Internet portal ranks the highest in all factors, followed by SNS, and fashion magazine as the lowest. Second, the Internet portal was competing with fashion magazine and SNS because there is an overlap between the two platforms. By contrast, SNS has a relatively low degree of overlap with fashion magazines, and they are complementary to each other. Third, the Internet portal has a strong advantage over fashion magazine and SNS in all factors. On the basis of the results of this study, we can summarize remarkable points in strategy formulation as follows. First, the Internet portal, which is popularized by “usage accessibility,” is expected to continue to dominate the competition over other media platforms while providing greater gratification to users of fashion contents. Second, the competitiveness of fashion magazines, which has been shrinking dramatically, lies in the diversity and quality of fashion contents. Innovating ways to develop creative fashion content and improve the quality through more in-depth analysis of the reader is essential. Third, SNS is slightly behind the Internet portal as a whole; however, it is one of the emerging platforms in the fashion content market because of its competitive advantage in terms of gratification opportunities.

모바일 SNS(Social Network Service) 메신저를 매개로 하며 네크워트를 통한 의사전달과 정보교환이 커뮤니케이션 영역의 중심이 되고 있다. 모바일 SNS 메신저는 신체언어인 얼굴표정 및 몸짓의 표현이 배제된 상태로 의사소통이 이루어지기 때문에 상대방의 미세한 감성을 정확히 인지하는데 한계가 있다. 이를 극복하기 위한 방법 중 하나가 이모티콘을 사용한 감성 커뮤니케이션이다. 사용자들의 이모티콘 사용이 증가함과 동시에 카카오톡, 라인 등의 회사뿐만 아니라, 개인 작가들을 통한 이모티콘 개발 또한 급격히 늘어나고 있다. 그럼에도 불구하고 적절한 디자인 가이드라인 없이 제작된 이모티콘은 여전히 사용자마다 다른 의미로 해석되어 커뮤니케이션의 오류가 발생되거나 감성 표현에 적절한 이모티콘을 찾는 것이 어렵다. 따라서, 본 연구는 모바일 SNS 환경에서의 커뮤니케이션에서 사용자들의 원활한 감성과 관련된 의사소통을 위하여 이모티콘을 체계적으로 연구하여 디자인 가이드라인을 구축하고 이를 실제로 적용한 이모티콘을 개발하고자 한다. 또한, 개발한 이모티콘에 대한 감성 커뮤니케이션의 효과를 검증하였다. 본 연구의 결과에서 정립한 이모티콘 가이드라인과 이를 적용한 감성 이모티콘은 앞으로 지속적으로 향상될 이모티콘 디자인에 있어서 감성 표현의 효과를 높이기 위한 긍정적인 방법으로 활용될 수 있을 것으로 기대된다.

As social media penetrates more deeply into people’s everyday lives, social commerce (a type of commerce that combines SNS features and possibility for commercial transactions) has enjoyed unprecedented growth. Shopping on Facebook is a representative example of social commerce platform that allows consumers to interact with other users, exchange information and purchase products without leaving a Facebook page. Social commerce presents great opportunities for marketers in terms of leveraging social aspects of shopping experience. It also offers a large potential for Korean companies to reach various target markets, as well as establish their presence abroad. Yet, acceptance of social commerce as a legitimate shopping channel has been slow, and consumers are still hesitant to shop via Facebook. This study draws on uses and gratification theory and the concept of perceived risk to examine how different motives for SNS use and the associated types of perceived risks can affect the purchase intention on the platform. Empirical data from 288 young users of Facebook were analyzed. Findings identified two main motives for SNS use: information-related motive and communication-related motive. Information-related motive significantly affected the intention to shop on Facebook, whereas communication- related motive did not have any significant influence. Risks associated with shopping via Facebook included delivery risk, security risk, social risk and economic risk. Overall, consumers perceived a higher level of security and social risk associated with shopping on Facebook. However, only social risk had a significant negative influence on the purchase intention. Awareness and previous experience of buying via social commerce platform positively affected consumers’ purchase intention.

Previous research has found that taking photos during travel for the purpose of sharing with others via SNS (social networking sites) induces self-presentational concerns, which can decrease engagement and enjoyment of the experience. However, the previous studies have defined travel engagement and enjoyment too narrowly and failed to consider the heterogeneity in terms of the importance of photo-taking. While some travelers are reluctant photo takers and regard taking photos as a bother, others place more importance on photo-taking than sightseeing, and may therefore find it difficult to enjoy the travel experience without taking photos. To address these deficiencies, we modeled not only negative, but also positive relationships between photo-taking and travel engagement and enjoyment. The results showed that when taking photos, travelers who regard photo-taking as important were more engaged in the experience and enjoyed it more than travelers who regarded photo-taking as less important. Thus, this study provides a theoretical contribution to research on travel engagement.

As the usage of smartphones increased rapidly due to the popularization of smart phones, it appears that the average daily usage time of Korean people was 3 hours and 39 minutes, and it was analyzed that the twenties uses 4 hours 41 minutes longer than the average (Jung, 2015). It, also, was found that users mainly use smartphones for receiving information retrieval, social network sites (SNS) activities, listening to music, watching games, and watching videos. In consequence, various contents suitable for smartphones are increasing rapidly. In particular, the number of users who are engaged in SNS activities through smartphones is rapidly increasing and its influence is gradually getting bigger. (Park & Lee, 2012). SNS activities provide content that gives entertainment in a short time and at the same time make consumption regardless of time and space like in subways or cafes, and also stimulate users through visual elements. The content that can be enjoyed in 10 to 15 minutes like snacks, which are easily eaten regardless of time and space, is called 'snack culture'. (Ko, 2015) According to Cheil Worldwide, 2000 media outlets for men and women aged between 13 and 59 living in major cities across the country, the phenomenon of easily consuming short videos, web cartoons, and web novels appeared noticeably. As a result of investigating the main purposes of smartphones, the use of relatively short contents such as SNS has increased (Bae, 2015). SNS provides users with simple contents similar to snacks, and users tend to use SNS as a leisure activity by using these services in 'leisure time' which is the time of their spare time. In this way, as the number of SNS steadily increased, SNS activity has also naturally increased. Consequently, as the SNS market has rocketed among various activities, the e-commerce using it is become popular. This type of consumption activity is called leisure spending (Cho & Do, 2010). Thus, it is necessary to analyze whether consumers view SNS activities as part of their leisure life. Although there are a lot of active consumption activities happening in consequence of using SNS after the spread of smartphones, there is very little research done on the relationship between SNS activity and the leisure life. This study, therefore, intends to conduct in-depth interviews on twenty women in their twenties and thirties who are actively engaged in consumption activities in the SNS market, on the issue of whether they acknowledge SNS activities and consumption behavior in the SNS market as recreational activities. The purposes of this study are as follows: first, to find out the meaning to SNS activities as a leisure activity to female consumers of the twenties and the thirties; second, to explore the approaching process and motivation of leisure life extending to leisure spending; third, to examine the relation between experience of commitment and leisure satisfaction through previous research and in-depth interview In addition, this study is the cornerstone of research on SNS market which is becoming an issue as one new consumption trend and which recognizes consumption activity that happens in the market as leisure consumption in reference to leisure. It is considered to be utilized variously when establishing marketing strategy of fashion companies, which will use image consumption based SNS later.

The relationship of parasocial Interaction is one of the important contents of marketing research in recent years. With the rise of internet economy in the world, more and more enterprises' marketing practices are involved in the marketing process of SNS based on social networks. The interaction between medium and audiences has broken through the non-face-to-face one-way communication mode and forms a twoway communication mode of the relationship of parasocial Interaction in the SNS environment. Based on the signaling theory and the social exchange theory, this dissertation clarifies the driving factors and mechanism between Fashion web celebrity and attributes and relationship of parasocial interaction through the literature review, In the South China, Middle and North China, there were N audiences who used SNS experience as survey target to conduct a survey. And analyzed these data with SEM software. The research found that between Fashion web Fashion web celebrity and attributes and SNS participation motivation show a positive correlation with relationship of parasocial interaction, and there is a positive correlation between relationship of parasocial interaction and identification, relationship of parasocial interaction and identification have positive correlation with customer equity. E-WOM on customer asset-driven process has a clear intermediary role in the relationship of parasocial Interaction. This not only enriches and develops the existing research results of relationship of parasocial Interaction, but also provides guidance for enterprises to manage relationship of parasocial interactions. In addition, it also provides valuable theoretical guidance for enterprises to promote SNS marketing management practices.