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Manipulating Nanowires in Interconnecting Layer for Efficient Tandem Organic Photovoltaics

Chinese Journal of Chemistry 2024年第4期42卷 377-383页

作者： Yanjie Tang Jiaming Fu Hao Li Du Hyeon Ryu won suk shin Jianqi Zhang Yi Yang Yiming Yang Deyuan Li Zhong Zheng Shaoqing Zhang Jianhui Hou School of Chemistry and Biology Engineering University of Science and Technology Beijing(USTB)Beijing100083 China State Key Laboratory of Polymer Physics and Chemistry Beijing National Laboratory for Molecular SciencesInstitute of ChemistryChinese Academy of Sciences(ICCAS)Beijing100190 China Energy Materials Research Center Korea Research Institute of Chemical Technology(KRICT)Advanced Materials&Chemical EngineeringUniversity of Science&Technology(UST)Korea The National Center for Nanoscience and Technology(NCNST) Beijing100190 China University of Chinese Academy of Sciences Beijing(UCAS) Beijing100049 China China Railway Resources Group Survey and Design Co.Ltd. LangfangHebei065000 China

Owing to the function of manipulating light absorption distribution,tandem organic solar cells containing multiple sub-cells exhibit high power conversion ***,there is a substantial challenge in precisely controlling the inter-subcells carrier migration which determines the balance of charge transport across the entire *** conductivity of"nanowires"-like conducting channel in interconnecting layer between sub-cells should be improved which calls for fine engineering on the morphology of polyelectrolyte in interconnecting ***,we develop a simple method to effectively manipulating the domains of conductive components in commercially available polyelectrolyte PEDOT:*** use of poor solvent could effectively modify the configuration of polystyrene sulfonic acid and thus the space for conductive *** on our strategy,the insulated shells wrapping conductive domains are thinned and the efficiencies of tandem organic solar cells are *** believe our method might provide guidance for the manufacture of tandem organic solar cells.

关键词： Tandem organic solar cells Power conversion efficiency interconnecting layer Tunneling junction Interfacial layers Conformationanalysis π-πstacking Donor-acceptorsystems

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Highly efficient and stable organic solar cells with SnO_(2)electron transport layer enabled by UV-curing acrylate oligomers

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Journal of Energy Chemistry 2024年第5期92卷 124-131页

作者： Mwende Mbilo Du Hyeon Ryu Seungjin Lee Muhammad Haris Julius Mwakondo Mwabora Robinson Juma Musembi Hang Ken Lee Sang Kyu Lee Chang Eun Song won suk shin Department of Physics Faculty of Science and TechnologyUniversity of Nairobi(UoN)P.O.Box 30197-00100NairobiKenya Advanced Energy Materials Research Center Korea Research Institute of Chemical Technology(KRICT)Daejeon 34114Republic of Korea Advanced Materials and Chemical Engineering University of Science and Technology(UST)Daejeon 34113Republic of Korea

The interfaces between the inorganic metal oxide and organic photoactive layer are of outmost importance for efficiency and stability in organic solar cells(OSCs).Tin oxide(SnO_(2))is one of the promising candidates for the electron transport layer(ETL)in high-performance inverted *** a solution-processed SnO_(2)ETL is employed,however,the presence of interfacial defects and suboptimal interfacial contact can lower the power conversion efficiency(PCE)and operational stability of ***,highly efficient and stable inverted OSCs by modification of the SnO_(2)surface with ultraviolet(UV)-curable acrylate oligomers(SAR and OCS)are *** highest PCEs of 16.6%and 17.0%are achieved in PM6:Y6-BO OSCs with the SAR and OCS,respectively,outperforming a device with a bare SnO_(2)ETL(PCE 13.8%).The remarkable enhancement of PCEs is attributed to the optimized interfacial contact,leading to mitigated surface *** strikingly,improved light-soaking and thermal stability strongly correlated with the interfacial defects are demonstrated for OSCs based on SnO_(2)/UV cross-linked resins compared to OSCs utilizing bare SnO_(2).We believe that UV cross-linking oligomers will play a key role as interfacial modifiers in the future fabrication of large-area and flexible OSCs with high efficiency and stability.

关键词： Organic solar cells SnO_(2) Surface defects Ultraviolet resins Stability Cross-linking oligomers Non-halogenated solvent

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High-efficiency single and tandem fullerene solar cells with asymmetric monofluorinated diketopyrrolopyrrole-based polymer

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Journal of Energy Chemistry 2022年第1期31卷 236-245,I0007页

作者： Shafket Rasool Quoc Viet Hoang Doan Van Vu Chang Eun Song Hang Ken Lee Sang Kyu Lee Jong-Cheol Lee Sang-Jin Moon won suk shin Institute of Chemical Technology(KRICT) 141 Gajeong-roYuseongDaejeon 34114Republic of Korea Advanced Materials and Chemical Engineering University of Science and Technology(UST)217 CajeongroYuseongDaejeon 34113Republic of Korea Vietnam Standards and Quality Institute(VSQI) Directorate for StandardsMetrology and Quality(STAMEQ)No.8.Hoang Quoc VietCau GiayHanoiViet Nam

Design and synthesis of low bandgap(LBG) polymer donors is inevitably challenging and their processability from a non-halogenated solvent system remains a hurdle to overcome in the area of highperformance polymer solar cells(PSCs).Due to a high aggregation tendency of LBG polymers,especially diketopyrrolopyrrole(DPP)-based polymers coupled with bithiophenes in the polymer backbones,their widespread adoption in non-ha logena ted solvent-processed PSCs has been ***,a novel LBG DPP-based polymer,called PDPP4 T-1 F with asymmetric arrangement of fluorine atom,has been successfully synthesized and showed an outstanding power conversion efficiency(PCE) of 10.10% in a singlejunction fullerene-based ***,an impressive PCE of 13.21% has been achieved in a tandem device from a fully non-halogenated solvent system,which integrates a wide bandgap PDTBTBz-2 F polymer in the bottom cell and LBG PDPP4 T-1 F polymer in the top *** achieved efficiency is the highest value reported in the literature to date in fullerene-based tandem *** found that a uniformly distributed interpenetrating fibril network with nano-scale phase separation and anisotropy of the polymer backbone orientation for efficient charge transfer/transport and suppressed charge recombination in PDPP4 T-1 F-based PSCs led to outstanding PCEs in single and tandem-junction PSCs.

关键词： Low bandgap polymers Diketopyrrolopyrrole Tandem polymer solar cells Non-halogenated solvent Monofluoro-bithiophene

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Highly Elastic,Bioresorbable Polymeric Materials for Stretchable,Transient Electronic Systems

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Nano-Micro Letters 2024年第6期16卷 1-13页

作者： Jeong‑Woong shin Dong‑Je Kim Tae‑Min Jang won Bae Han Joong Hoon Lee Gwan‑Jin Ko Seung Min Yang Kaveti Rajaram Sungkeun Han Heeseok Kang Jun Hyeon Lim Chan‑Hwi Eom Amay J.Bandodkar Hanul Min suk‑won Hwang KU‑KIST Graduate School of Converging Science and Technology Korea University145 Anam‑roSeongbuk‑guSeoul 02841Republic of Korea SK Hynix 2091Gyeongchung‑daeroBubal‑eupIcheon‑siGyeonggi‑do 17336Republic of Korea Hanwha Systems Co. Ltd.188Pangyoyeok‑roBundang‑guSeongnam‑siGyeonggi‑do 13524Republic of Korea Department of Electrical and Computer Engineering North Carolina State UniversityRaleighNC 27606USA Center for Advanced Self‑Powered Systems of Integrated Sensors and Technologies(ASSIST) North Carolina State UniversityRaleighNC 27606USA Department of Integrative Energy Engineering Korea University145 Anam‑roSeongbuk‑guSeoul 02841Republic of Korea Biomaterials Research Center Korea Institute of Science and Technology(KIST)5 Hwarang‑ro 14‑gilSeongbuk‑guSeoul 02792Republic of Korea Semiconductor R&D Center Samsung Electronics Co.Ltd.Hwaseong‑siGyeonggi‑do 18448Republic of Korea Center for Advanced Biomolecular Recognition Biomedical Research DivisionKorea Institute of Science and Technology(KIST)Seoul 02792Republic of Korea

Substrates or encapsulants in soft and stretchable formats are key components for transient,bioresorbable electronic systems;however,elastomeric polymers with desired mechanical and biochemical properties are very limited compared to nontransient ***,we introduce a bioresorbable elastomer,poly(glycolide-co-ε-caprolactone)(PGCL),that contains excellent material properties including high elongation-at-break(<1300%),resilience and toughness,and tunable dissolution *** of PGCLs as polymer matrices,in combination with conducing polymers,yields stretchable,conductive composites for degradable interconnects,sensors,and actuators,which can reliably function under external *** of device components with wireless modules demonstrates elastic,transient electronic suture system with on-demand drug delivery for rapid recovery of postsurgical wounds in soft,time-dynamic tissues.

关键词： Biodegradable elastomer Conductive polymer composites Biomedical device Transient electronics

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Efficacy of chemotherapy containing bevacizumab in patients with metastatic colorectal cancer according to programmed cell death ligand 1

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World Journal of Gastrointestinal Oncology 2024年第8期16卷 3521-3528页

作者： shin Woo Kang Sung Hee Lim Min-Ji Kim Jeeyun Lee Young suk Park Ho Yeong Lim won Ki Kang Seung Tae Kim Division of Hematology Oncology Department of MedicineSamsung Medical CenterSungkyunkwan University School of MedicineSeoul 06351South Korea Samsung Biomedical Research Institute Samsung Medical CenterSeoul 06351South Korea

BACKGROUND Bevacizumab,an anti-vascular endothelial growth factor(VEGF)monoclonal antibody,inhibits angiogenesis and reduces tumor *** VEGF-C,lactate dehydrogenase,and inflammatory markers have been reported as predictive markers related to bevacizumab *** cell death ligand 1(PD-L1)could act upon VEGF receptor 2 to induce cancer cell angiogenesis and *** To investigate the efficacy of bevacizumab-containing chemotherapy in patients with metastatic colorectal cancer(CRC)according to the expression of *** This analysis included CRC patients who received bevacizumab plus FOLFOX or FOLFIRI as first-line therapy between June 24,2014 and February 28,2022,at Samsung Medical Center(Seoul,South Korea).Analysis of patient data included evaluation of PD-L1 expression by the combined positive score(CPS).We analyzed the efficacy of bevacizumab according to PD-L1 expression status in patients with *** A total of 124 patients was included in this *** all patients were treated with bevacizumab plus FOLFIRI or FOLFOX as the first-line *** 77%of patients received FOLFOX,23%received FOLFIRI as backbone first-line *** numbers of patients with a PD-L1 CPS of 1 or more,5 or more,or 10 or more were 105(85%),64(52%),and 32(26%),*** results showed no significant difference in progression-free survival(PFS)and overall survival(OS)with bevacizumab treatment between patients with PDL1 CPS less than 1 and those with PD-L1 CPS of 1 or more(PD-L1<1%vs PD-L1≥1%;PFS:P=0.93,OS:P=0.33),between patients with PD-L1 CPS less than 5 and of 5 or more(PD-L1<5%vs PD-L1≥5%;PFS:P=0.409,OS:P=0.746),and between patients with PD-L1 CPS less than 10 and of 10 or more(PD-L1<10%vs PD-L1≥10%;PFS:P=0.529,OS:P=0.568).CONCLUSION Chemotherapy containing bevacizumab can be considered as first-line therapy in metastatic CRC irrespective of PD-L1 expression.

关键词： Bevacizumab Colorectal cancer Programmed cell death ligand 1 expression First-line chemotherapy Metastatic colorectal cancer

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Modeling and implementation of tandem polymer solar cells using wide-bandgap front cells

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Carbon Energy 2020年第1期2卷 131-142页

作者： Seo-Jin Ko Hyosung Choi Quoc Viet Hoang Chang Eun Song Pierre-Olivier Morin Jungwoo Heo Mario Leclerc Sung Cheol Yoon Han Young Woo won suk shin Bright Walker Jin Young Kim Division of Advanced Materials Korea Research Institute of Chemical Technology(KRICT)DaejeonSouth Korea Department of Chemistry and Research Institute for Natural Sciences Hanyang UniversitySeoulSouth Korea Vietnam Certification Centre Directorate for StandardsMetrology and Quality(STAMEQ)HanoiVietnam Department of Chemistry Laval UniversityQuebec CityCanada Department of Energy Engineering Ulsan National Institute of Science and Technology(UNIST)UlsanSouth Korea Department of Chemistry Korea UniversitySeoulSouth Korea Department of Chemistry Kyung Hee UniversitySeoulSouth Korea

Tandem device architectures offer a route to greatly increase the maximum possible power conversion efficiencies(PCEs)of polymer solar cells,however,the complexity of tandem cell device fabrication(such as selecting bandgaps of the front and back cells,current matching,thickness,and recombination layer optimization)often result in lower PCEs than are observed in single-junction *** this study,we analyze the influence of front cell and back cell bandgaps and use transfer matrix modeling to rationally design and optimize effective tandem solar cell structures before actual device *** approach allows us to estimate tandem device parameters based on known absorption coefficients and open-circuit voltages of different active layer materials and design devices without wasting valuable time and *** this approach,we have investigated a series of wide bandgap,high voltage photovoltaic polymers as front cells in tandem devices with PTB7-Th as a back *** this way,we have been able to demonstrate tandem devices with PCE of up to 12.8%with minimal consumption of valuable photoactive materials in tandem device *** value represents one of the highest PCE values to date for fullerene-based tandem solar cells.

关键词： polymer solar cells solar cells tandem solar cells

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Publisher Correction to:Highly Elastic,Bioresorbable Polymeric Materials for Stretchable,Transient Electronic Systems

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Nano-Micro Letters 2024年第8期16卷 417-417页

作者： Jeong‑Woong shin Dong‑Je Kim Tae‑Min Jang won Bae Han Joong Hoon Lee Gwan‑Jin Ko Seung Min Yang Kaveti Rajaram Sungkeun Han Heeseok Kang Jun Hyeon Lim Chan‑Hwi Eom Amay JBandodkar Hanul Min suk‑won Hwang KU‑KIST Graduate School of Converging Science and Technology Korea University145 Anam‑roSeongbuk‑guSeoul 02841Republic of Korea SK Hynix 2091Gyeongchung‑daeroBubal‑eupIcheon‑siGyeonggi‑do 17336Republic of Korea Hanwha Systems Co. Ltd.188Pangyoyeok‑roBundang‑guSeongnam‑siGyeonggi‑do 13524Republic of Korea Department of Electrical and Computer Engineering North Carolina State UniversityRaleighNC 27606USA Center for Advanced Self‑Powered Systems of Integrated Sensors and Technologies(ASSIST) North Carolina State UniversityRaleighNC 27606USA Department of Integrative Energy Engineering Korea University145 Anam‑roSeongbuk‑guSeoul 02841Republic of Korea Biomaterials Research Center Korea Institute of Science and Technology(KIST)5 Hwarang‑ro 14‑gilSeongbuk‑guSeoul 02792Republic of Korea Semiconductor R&D Center Samsung Electronics Co.Ltd.Hwaseong‑siGyeonggi‑do 18448Republic of Korea Center for Advanced Biomolecular Recognition Biomedical Research DivisionKorea Institute of Science and Technology(KIST)Seoul 02792Republic of Korea

Due to typesetting mistake,Hanul Min was missed to be denoted as a corresponding author in the *** type-setter apologizes for *** original article has been *** Access This article is licensed under a Creative Commons Attribution 4.0 International License,which permits use,sharing,adaptation,distribution and reproduction in any medium or format,as long as you give appropriate credit to the original author(s)and the source,provide a link to the Creative Commons licence,and indicate if changes were *** images or other third party material in this article are included in the article’s Creative Commons licence,unless indicated otherwise in a credit line to the *** material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use,you will need to obtain permission directly from the copyright holder.

关键词： Creative Elastic Highly

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Influence of the molecular structure of metal-phthalocyanine on electrocatalytic reactions

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Science China Materials 2022年第12期65卷 3324-3333页

作者： Da Sol Jeong Hyeon suk shin Jieun Yang Department of Chemistry Ulsan National Institute of Science and Technology(UNIST)50 UNIST-gilUlsan 44919Republic of Korea Department of Chemistry and Research Institute of Basic Sciences Kyung Hee University26 Kyungheedae-roDongdaemun-guSeoul 02447Republic of Korea

The demand for new catalysts for renewable energy production has become *** an alternative to metal catalysts for electrocatalysis to produce energy sources,metal-phthalocyanine(MPc)electrocatalysts have shown *** physicochemical and electrochemical properties depend on the chemical structure of the MPc and the central metal *** reviews of MPcs focused on their electrochemical performance in specific catalytic reactions,such as oxygen reduction reaction and CO_(2)reduction ***,understanding the structure of MPcs in depth is important,since their electrochemical catalytic activity is affected by structural modifications of ***,this minireview focuses on how the molecular structure of MPcs affects electrochemical catalysis.

关键词： metal-phthalocyanine oxygen reduction reaction carbon dioxide reduction reaction hydrogen evolution reaction oxygen evolution reaction electrocatalytic activities

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Hepatocellular carcinoma presenting as organized liver abscess:A case report

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World Journal of Clinical Cases 2023年第33期11卷 8078-8083页

作者： Sung Hyeok Ryou Hyun Deok shin suk Bae Kim Department of Internal Medicine Dankook University College of MedicineCheonan 31116ChungnamSouth Korea

BACKGROUND Hepatocellular carcinoma(HCC)is difficult to treat and has a high mortality rate,emphasizing the importance of early diagnosis and *** characteristic radiologic findings and underlying liver disease are present,a diagnosis can be made without a ***,when HCC is accompanied by a liver abscess,diagnosis might be delayed by atypical radiologic *** case report aims to assist in the diagnosis of HCC,which can manifest in various *** SUMMARY A 75-year-old male presented to the Emergency Department with worsening fever and mental *** was diagnosed with liver cirrhosis six months *** computed tomography(CT)raised our suspicion of an organized liver abscess.A follow-up CT scan after four weeks of antibiotic treatment showed a decrease in the liver lesion ***,high fever recurred,and C-reactive protein increased to 14 mg/*** of the liver lesion was performed,but no bacteria were *** culture revealed the presence of *** patient received an additional four weeks of antibiotics and antifungal agents before being *** 10 mo later,a CT scan showed an increase in the lesion size,and biopsy was *** biopsy revealed an organized abscess with focal carcinomatous changes,for which surgery was *** histopathological examination revealed HCC,clear-cell *** nontumor liver tissue showed cirrhosis and an organized *** Even if a liver abscess is suspected in a patient with cirrhosis,the possibility of HCC should be considered.

关键词： Liver abscess Hepatocellular carcinoma Infection Diagnosis Case report

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Large-Area Hexagonal Boron Nitride Layers by Chemical Vapor Deposition:Growth and Applications for Substrates,Encapsulation,and Membranes

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Accounts of Materials Research 2022年第7期3卷 748-760页

作者： Kyung Yeol Ma Minsu Kim Hyeon suk shin Department of Chemistry Ulsan National Institute of Science and Technology(UNIST)Ulsan 44919Republic of Korea Low Dimensional Carbon Materials Ulsan National Institute of Science and Technology(UNIST)Ulsan 44919Republic of Korea

CONSPECTUS:Hexagonal boron nitride(hBN)has emerged as a promising two-dimensional(2D)material because of its unique optical properties in the deep-UV region,mechanical robustness,thermal stability,and chemical *** hBN layers have gained significant scientific attention for various applications,including nanoelectronics,photonics,single photon emission,anticorrosion,and membranes.

关键词： agonal gained boron

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