• Journal of the Semiconductor & Display Technology
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• v.14 no.1
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• pp.61-65
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• 2015

We have fabricated poly(3,4-ethylenedioxythiophene) : poly(4-styrenesulfonate) (PEDOT : PSS) thin films using a slotdie coater for the applications of OLED lightings. It is demonstrated that the properties of slot-die coated PEDOT : PSS films are comparable with those of spin-coated ones. Namely, the average and peak-to-peak roughness of the slot-die coated 50-nm-thick PEDOT : PSS film are measured to be as low as 0.247 nm and 1.3 nm, respectively. Moreover, we have obtained excellent thickness uniformity (~1.91%). With the slot-die coated PEDOT : PSS films, we have fabricated green phosphorescent OLED devices. For comparison, we have also fabricated OLED devices with spin-coated PEDOT : PSS films. Both show almost no discrepancy in device performance. The power efficiency (25.4 lm/W) and emission uniformity (77%) of OLEDs with slot-die coated PEDOT : PSS films are shown to be slightly lower than those (27.3 lm/W, 80%) of OLEDs with spin-coated PEDOT : PSS films at the luminance of 1,000nit, increasing the feasibility of using a slot-die coating process for the fabrication of large-area OLED lighting sources at a competitive price.

• Journal of the Semiconductor & Display Technology
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• v.13 no.3
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• pp.27-33
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• 2014

To develop high efficiency crystalline solar cells, the $SiN_x$ film for surface passivation and anti-reflection coating is very important and it is generally deposited by PECVD. In this paper, the $SiN_x$ film deposited by Hot-Wire chemical vapor deposition(HWCVD) that has no plasma damage was studied. First, to optimize the $SiN_x$ film deposition process, $SiH_4$ gas rate and substrate temperature were varied and then refractive index and thickness were measured. When $SiH_4$ gas rate was 22sccm and substrate temperature was $100^{\circ}C$, refractive index was 1.94 and higher than that of other process conditions. Second, the lifetime was measured by varying the annealing temperature and time. The annealing process was made from 5 to 30 minutes at $300{\sim}500^{\circ}C$. When the annealing temperature was $100^{\circ}C$ and time was 10minute, the lifetime was the highest. The lifetime of annealed samples was also measured after the firing process at $975^{\circ}C$. Although the lifetime of all samples was decreased by firing process, the lifetime of annealed samples before the firing process was higher than that of fired samples only. Finally, the characteristics of solar cells with HWCVD $SiN_x$ film were measured.

• Journal of the Semiconductor & Display Technology
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• v.15 no.1
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• pp.65-69
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• 2016

We have investigated the possibility of recycling of an organic material that is wasted during thermal evaporation. To this end, we have collected a wasted organic material (N,N'-diphenly-N,N'-bis(1,1'-biphenyl)-4,4'-diamine(NPB)) from a vacuum chamber, purified it by recrystallization, and fabricated bilayer organic light-emitting diodes (OLEDs) with the recycled NPB. It is found that the surface roughness of thin films coated with the purified NPB is much enhanced. OLEDs fabricated by thermal evaporation of the purified NPB show lower device efficiency than OLEDs with the original NPB. However, the power efficiency of OLED fabricated by spin coating of the purified NPB is comparable with that of OLED with the original NPB. Therefore, such a recycling method by recrystallization would be more suitable for solution-processed OLEDs.

• Journal of Korean Public Health Nursing
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• v.28 no.3
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• pp.445-459
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• 2014

Purpose: The purpose of this study was to identify health education needs of the multicultural family as perceived by visiting nurses. Methods: Mixed method was applied. A questionnaire was distributed to 184 visiting nurses. Three focus group interviews were subsequently conducted in order to obtain a greater understanding of nurses' experience of health education. Results: Visiting nurses were mainly providing education about pregnancy, delivery and baby care. Health education needs of the multicultural family as perceived by visiting nurses were classified according to four categories : diet, hygiene, contraception and family planning, and communication. Barriers to health education of visiting nurses were a lack of adequate health education materials and communication problems. Conclusion: To achieve effective health care of the multicultural family by visiting nurses, customized multi-language health education material focusing on five subjects, pregnancy and delivery, diet, hygiene, contraception and family planning, and communication, with easy terms and simple paragraphs is required.

• The Journal of Korean Society for School & Community Health Education
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• v.24 no.3
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• pp.37-50
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• 2023

Objectives: The aim of this study was to identify factors influencing communication satisfaction between geriatric caregivers and older adults in urban-rural complex communities. The ultimate goal was to design local community educational programs and policies to enhance communication satisfaction among geriatric caregivers and improve the quality of care services for older adults. Methods: To identify factors influencing communication satisfaction between elderly caregivers and older adults, a survey titled "CCEP: Assessment of Communication Status between Elderly Care Service Providers and Recipients" was conducted from February to July 2020, focusing on rural-urban complex areas. The survey was administered based on providers of elderly healthcare services. The survey targeted 131 respondents involved in providing care services for older adults. The dependent variable of this study was the communication satisfaction reported by elderly caregivers in their interactions with the elderly. The independent variables included perceptions of older adults, factors associated with communication difficulties, and communication efforts. Additionally, gender, working environment, working experience, and the proportion of face-to-face interactions with older adults during caregiving were controlled for the hierarchical multiple regression analysis. Results: The analysis revealed that communication efforts with older adults significantly influenced communication satisfaction (β=.09, p<0.01). However, perceptions of the elderly and communication hindrance factors did not have a significant impact on communication satisfaction among geriatric caregivers. Conclusion: Effective communication between geriatric caregivers and older adults is crucial for identifying and meeting the needs and demands of caregiving services, and it plays a vital role in overall caregiving service satisfaction. To enhance communication skills and satisfaction among geriatric caregivers and ensure the appropriate fulfillment of elderly care needs in the local community, the development of community-centered, specialized health communication programs and other initiatives will be necessary in the future.

• The Journal of Korean Association of Computer Education
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• v.15 no.1
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• pp.33-41
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• 2012

The purpose of this study was to examine the effectiveness of problem-based learning(PBL) of information communication ethics on the problem-solving skills of fifth- and sixth-grade elementary school students about information communication ethics and their attitude. The findings of the study were as follows: First, the PBL-based teaching materials for information communication ethics could serve to stir up the interest of students by letting them face problem situations caused by the disfunction of the information society. Second, a wide variety of teaching-learning activities including cooperative learning and discussion were implemented while the selected students performed the given problem-solving tasks, and the activities had a very good effect on PBL-based information communication ethics education. Third, PBL-based information communication ethics education could be one of effective ways to boost not only the problem-solving skills of students but the teaching interest and capability of teachers.

• Journal of Society of Preventive Korean Medicine
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• v.25 no.2
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• pp.13-31
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• 2021

Objectives : The objectives of this study are to provide the education of communication skills in the class of theories of Korean medical famous physicians and to survey students' perception of the effect. Methods : The class of theories of Korean medical famous physicians was newly designed and was given to students. The results from the questionnaire survey with second year students at department of Korean medicine were applied to the evaluation of study issues. The scale used for this study was the modified version of 'Beyer-Fetzer's Essential Elements of Communication Skills Assessment Sheet', which was developed by researchers in line with the education of Korean medicine. Results : In six (except for 'opening a conversation') out of seven categories, post-test results were more improved than pretest results. In the category of communication skills (a total of 25 questions), post-test results were higher than pretest results in all items. Among them, 13 items were statistically significant. With regard to the question as to how important the class of communication skills is to raise their professionalism as Korean medicine doctor, post-test result was higher than pretest result. Regarding an appropriate education point of time, there were various points in the entire period of curriculum. The appropriateness of teaching-learning method was positively evaluated. In terms of the content helpful for learning, learner-oriented activities was preferred over teacher-oriented lecturing. Conclusions : The communication skills learned in the class of theories of Korean medical famous physicians were effective. Communications skills should be taught constantly in the entire curriculum in order to raise students' professionalism as Korean medicine doctor. In terms of education method, it is desirable to design a class based on students' various activities, rather than lecturing.

• International Journal of Internet, Broadcasting and Communication
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• v.14 no.4
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• pp.1-10
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• 2022

Since 2019, elementary schools have been teaching software to students, so pre-service teachers should have the ability to teach software. Also, in the COVID-19 situation, pre-service teachers need the ability to teach software online. The purpose of this study is to investigate the effectiveness of online software education for preservice teachers. After providing online software education to preservice teachers, we analyse the results and examines whether online software education is effective. In this study, we define 55 learning elements by analyzing the achievement standards that can evaluate the software education ability of preservice teachers. We figure out whether pre-service teachers have acquired the ability to provide online software education to elementary school students. As a result of the study, we concluded that pre-service teachers who received this online education could conduct software education online in elementary school.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.6 no.1
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• pp.64-71
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• 2005

In this paper we are investigating how ubiquitous revolution in knowledge society changes the education system. By the help of ubiquitous computing and networking techniques we estimates the configuration of e-teaming in the age of knowledge -based society, and we examines Education Model with e-teaming and ICT (Information and Communication Technology) at e-School. We also suggest the feasible design of the e-School and a Blended-learning scheme based on cooperative education as a way of teaching Education.

• Journal of Korean Public Health Nursing
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• v.15 no.1
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• pp.42-55
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• 2001

The purpose of this study was to provide basic information for developing effective marketing strategies of nursing organization by identifying the correlation among internal marketing factor, nurses' job satisfaction, and organizational commitment. The subjects of this study were 256 nurses who were working in the hospital over 1 year at three university hospitals which had more than 400 beds in seoul and kyung-gido. The data were collected by self-reporting questionnaires. The instruments used in this study were the communication form scale developed by Jo(1995), the welfare scale developed by researcher, the education training scale developed by researcher, the organizational commitment scale developed by Mowday, Porter and Steers(1979). The data were analysed by the SAS package using frequency, percentage, mean, standard deviation, and Pearson's correlation coefficient. The results of this study were as follows; 1. Mean scores of internal marketing factors in nursing organization were as follows; horizontal communication 3.42, downward communication 3.32, involvement communication 3.08, upward communication 3.00, education training 2.54, welfare 2.51. The mean score of job satisfaction was 2.79 and organizational commitment was 3.00. 2. Job satisfaction was positively correlated with education training (r=0.54, p=0.0001), upward communication(r=0.49, p=0.0001). welfare (r=0.40, p=0.0001), horizontal communication(r=0.33, p=0.0001), involvement communication(r=0.25, p=0.0001) of internal marketing factors in nursing organization, but negatively correlated with downward communication(r=-0.16. p=0.0082). Organizational commitment was positively correlated with upward communication(r=0.48, p=0.0001), education training (r=0.42, p=0.0001), horizontal communication(r=0.36, p=0.0001), welfare (r=0.34, p=0.0001), involvement communication(r=0.25, p=0.0001) of internal marketing factors in nursing organization. but negatively correlated with downward communication(r=-0.20, p=0.0014). In conclusion. the results of this study showed that the internal marketing factors were highly correlated with nurses' job satisfaction and organizational commitment. Therefore, for nurses' job satisfaction and organizational commitment's improvement, it is important to develop the education training program. to improve welfare system and to actualize upward communication. among internal marketing factors.