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Surface-functionalized hole-selective monolayer for high efficiency single-junction wide-bandgap and monolithic tandem perovskite solar cells

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Journal of Energy Chemistry 2024年第1期88卷 317-326,I0008页

作者： Devthade Vidyasagar Yeonghun Yun Jae Yu Cho Hyemin Lee Kyung Won kim Yong Tae kim Sung Woong Yang jina Jung Won Chang Choi Seonu kim Rajendra Kumar Gunasekaran Seok Beom Kang Kwang Heo Dong Hoe kim Jaeyeong Heo Sangwook Lee School of Materials Science and Engineering Kyungpook National UniversityDaegu 41566Republic of Korea Department of Materials Science and Engineering and Optoelectronics Convergence Research CenterChonnam National UniversityGwangju 61186Republic of Korea Department of Materials Science and Engineering Korea UniversitySeoul 02841Republic of Korea Department of Nanotechnology and Advanced Materials Engineering Sejong UniversitySeoul 05006Republic of Korea

Carbazole moiety-based 2PACz([2-(9H-carbazol-9-yl)ethyl]phosphonic acid)self-assembled monolayers(SAMs)are excellent hole-selective contact(HSC)materials with abilities to excel the charge-transferdynamics of perovskite solar cells(PSCs).Herein,we report a facile but powerful method to functionalize the surface of 2PACz-SAM,by which reproducible,highly stable,high-efficiency wide-bandgap PSCs can be *** 2PACz surface treatment with various donor number solvents improves assembly of 2PACz-SAM and leave residual surface-bound solvent molecules on 2PACz-SAM,which increases perovskite grain size,retards halide segregation,and accelerates hole *** surface functionalization achieves a high power conversion efficiency(PCE)of 17.62%for a single-junction wide-bandgap(~1.77 e V)*** also demonstrate a monolithic all-perovskite tandem solar cell using surfaceengineered HSC,showing high PCE of 24.66%with large open-circuit voltage of 2.008 V and high fillfactor of 81.45%.Our results suggest this simple approach can further improve the tandem device,when coupled with a high-performance narrow-bandgap sub-cell.

关键词： Perovskite solar cells 2PACz Monolithic tandem solar cells Wide bandgap

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韩国首尔江西地区幼儿汉语教学情况研究

韩国首尔江西地区幼儿汉语教学情况研究

作者： kim jina（金吉娜）青岛大学

学位级别：硕士

最近世界全球化正在迅速发展,韩国国内对外语教育的关注也日益增长,对汉语教育的重视度不断提高,新推出了各种教材及教具等。同时,各种年龄段的人都在学习汉语。目前,在韩国成人群体中出现了“汉语热”的现象,家长们对幼儿汉语教育的关... 详细信息

最近世界全球化正在迅速发展,韩国国内对外语教育的关注也日益增长,对汉语教育的重视度不断提高,新推出了各种教材及教具等。同时,各种年龄段的人都在学习汉语。目前,在韩国成人群体中出现了“汉语热”的现象,家长们对幼儿汉语教育的关注也与日俱增,各类幼儿园也推出了各种幼儿汉语教育课程。幼儿汉语教育是终身教育的起始阶段,是基础教育的组成部分。目前有很多关于幼儿早期语言教育现状的研究,也有对韩国其他地区及首尔江南地区幼儿汉语教育现状的调查,但针对首尔其他地区幼儿群体汉语教育情况的详细调查和说明还不是很多。本文以韩国江西地区幼儿汉语教学为研究对象,通过调查问卷方式对韩国江西地区幼儿汉语教学现状、幼儿早期汉语教育认识、汉语教育方法等角度进行系统而深入的调查研究,在重点分析首尔江西地区的幼儿汉语教育的现状与江南地区存在何种差异,预测幼儿汉语教育的整体现状和今后发展的可能性,并提出未来首尔地区幼儿汉语教育的发展方案。

关键词：首尔江西地区幼儿园韩国幼儿汉语教学

基于可持续发展理念的韩国艺术乡村品牌建设及其借鉴

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安徽乡村振兴研究 2023年第2期 101-108页

作者：王鹏金智娜加图立大学公演艺术系韩国富川07051 四川文化艺术学院心理与教育学院四川绵阳621000

艺术乡村是乡村旅游的特殊地景,基于可持续发展理念的艺术乡村品牌建设是促进中国品牌高质量发展、实施乡村振兴战略的重要实践。中韩艺术乡村品牌建设有着不同的基础和经验,但在农村社会可持续发展等方面两国有诸多相似因素。针对中国... 详细信息

艺术乡村是乡村旅游的特殊地景,基于可持续发展理念的艺术乡村品牌建设是促进中国品牌高质量发展、实施乡村振兴战略的重要实践。中韩艺术乡村品牌建设有着不同的基础和经验,但在农村社会可持续发展等方面两国有诸多相似因素。针对中国艺术乡村建设初始阶段显现的问题,可借鉴韩国艺术乡村品牌建设经验,明确可持续发展理念在艺术乡村品牌建设中的指导作用、着力点和实践路径,力求析出具有一定现实意义的艺术乡村品牌建设策略。

关键词：可持续发展艺术乡村乡村振兴品牌建设韩国

High-throughput compositional mapping of triple-cation tin-lead perovskites for high-efficiency solar cells

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InfoMat 2023年第4期5卷 25-38页

作者： Rajendra Kumar Gunasekaran jina Jung Sung Woong Yang Jungchul Yun Yeonghun Yun Devthade Vidyasagar Won Chang Choi Chang-Lyoul Lee Jun Hong Noh Dong Hoe kim Sangwook Lee School of Materials Science and Engineering Kyungpook National UniversityDaeguRepublic of Korea Advanced Photonics Research Institute(APRI) Gwangju Institute of Science and Technology(GIST)GwangjuRepublic of Korea School of Civil Environmental and Architectural EngineeringGreen SchoolKorea UniversitySeoulRepublic of Korea Department of Materials Science and Engineering Korea UniversitySeoulRepublic of Korea

Mixed tin-ead perovskites suffer from structural instability and rapid tin oxidation;thus,the investigation of their optimal composition ranges is important to address these inherent *** critical role of triple cations in mixed Sn–Pb iodides is studied by performing a wide range of compositional screenings over mechanochemically synthesized bulk and solution-processed thin films.A ternary phase map of FA(Sn_(0.6)Pb_(0.4))I_(3),MA(Sn_(0.6)Pb_(0.4))I_(3),and Cs(Sn_(0.6)Pb_(0.4))I_(3)is formed,and a promising composition window of(FA_(0.6-x)MA_(0.4)Cs_(x))Sn_(0.6)Pb_(0.4)I_(3)(0≤x≤0.1)is demonstrated through phase,photoluminescence,and stability *** cell performance and chemical stability across the targeted compositional space are investigated,and FA_(0.55)MA_(0.4)Cs_(0.05)Sn_(0.6)Pb_(0.4)I_(3)with strain-relaxed lattices,reduced defect densities,and improved oxidation stability is *** inverted perovskite solar cells with the optimal composition demonstrate a power conversion efficiency of over 22%with an open-circuit voltage of 0.867 V,which corresponds to voltage loss of 0.363 V,promising for the development of narrow-bandgap perovskite solar cells.

关键词： compositional engineering mixed tin-ead iodides narrow-bandgap perovskites perovskite solar cells strain relaxation ternary phase mapping

Successful treatment of a high-risk nonseminomatous germ cell tumor using etoposide, methotrexate, actinomycin D, cyclophosphamide, and vincristine: A case report

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World Journal of Clinical Cases 2020年第21期8卷 5334-5340页

作者： jina Yun Sang W Lee Sung H Lim Se H kim Chan K kim Seong K Park Department of Internal Medicine Division of Hematology-OncologySoonchunhyang University Bucheon HospitalSoonchunhyang University School of MedicineBucheon 14584South Korea Department of Urology and Internal Medicine Soonchunhyang University Bucheon HospitalSoonchunhyang University School of MedicineBucheon 14584South Korea

BACKGROUND Choriocarcinoma is an infrequent entity and the most aggressive subtype of germcell *** of early metastatic spread and rapid disease progression,choriocarcinoma patients display poor *** etoposide,methotrexate,actinomycin D,cyclophosphamide,and vincristine(EMA-CO)regimen is widely used to treat gestational trophoblastic tumors in females,its role in treating male choriocarcinoma is seldom *** SUMMARY A 32-year-old man was diagnosed with burned-out primary germ cell tumors(GCT)with retroperitoneum,liver and lung *** of the liver revealed pure *** patient received bleomycin,etoposide,and cisplatin *** two cycles of treatment,response evaluation revealed the mixed ***-CO regimen was used in the second-line *** eight cycles,the patient showed a potentially resectable state and thus,all residual masses were surgically *** patient was completely cured,and 10 years later,he is leading a healthy life without *** This paper is the first case of high-risk nonseminomatous GCT in a male patient to be successfully treated with the EMA-CO *** EMA-CO regimen can be used actively in patients with high-risk nonseminomatous GCT.

关键词： Antineoplastic combined chemotherapy protocols Choriocarcinoma Testicular neoplasms Cyclophosphamide Methotrexate Case report

The Role of Emotional and Cognitive Responses to Sport Video Gaming in Sport Brand Attitude Formation

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Psychology Research 2015年第8期5卷 464-477页

作者： Yongjae kim Seungbum Lee jina Hyejin Bang Kutztown University ofPennsylvania Kutztown USA University of Akron Akron USA Florida International University Miami USA