{"title":"High Frequency Ni-NiO-Ag Metal-Insulator-Metal Tunnel Diodes Fabricated via Anodic Aluminum Oxide Templates","authors":"Chongyuan Zhuang, Lei Wang, D. Zhun, Deren Yang","doi":"10.1149/2.0021505SSL","DOIUrl":"https://doi.org/10.1149/2.0021505SSL","url":null,"abstract":"","PeriodicalId":11423,"journal":{"name":"ECS Solid State Letters","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83424181","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"One-Step Synthesis of Blue Light-Emitting ZnxCd1−xTe Quantum Dots in an Aqueous Medium","authors":"Rongfang Wang, Xingming Wei, C. Liang, Liya Zhou","doi":"10.1149/2.0011510SSL","DOIUrl":"https://doi.org/10.1149/2.0011510SSL","url":null,"abstract":"","PeriodicalId":11423,"journal":{"name":"ECS Solid State Letters","volume":"33 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82651219","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Solution-Growth ZnO Nanorods for Light Extraction in GaN-Based Flip-Chip LEDs","authors":"N. Lin, S. Shei, S. Chang","doi":"10.1149/2.0061504SSL","DOIUrl":"https://doi.org/10.1149/2.0061504SSL","url":null,"abstract":"Institute of Microelectronics & Department of Electrical Engineering, Institute of Nanotechnology and MicrosystemsEngineering & Department of Materials Science and Engineering, Advanced Optoelectronic Technology Center,Center for Micro/Nano Science and Technology, National Cheng Kung University, Tainan 701, Taiwan","PeriodicalId":11423,"journal":{"name":"ECS Solid State Letters","volume":"41 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72608744","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"High Efficiency Electron Transfer Layer based on Ag-Al Co-Doped ZnS in Organic Lighting Emission Devices","authors":"Xiaoxiao He, Wen-jun Wang, Shuhong Li, Qingru Wang, Wanquan Zheng, Qiang Shi, Yun-long Liu","doi":"10.1149/2.0021502SSL","DOIUrl":"https://doi.org/10.1149/2.0021502SSL","url":null,"abstract":"Electron transmission improvement in organic light-emitting devices with Ag-Al co-doped ZnS has been demonstrated. The electroluminescence (EL) of device with co-doped ZnS electron transfer layer (ETL) is more than that of devices without ETL and the co-doped ZnS ETL device performs higher EL compared to pure ZnS ETL device. The using of co-doped ZnS can reduce the thickness of ETL from 40 nm to 8 nm and performs comparable efficiency and higher EL. According to the PL spectra studies and current density-voltage characters, the improved electron transmission is attributed to the introduction of impurity energy level and the increased concentration of electron.","PeriodicalId":11423,"journal":{"name":"ECS Solid State Letters","volume":"53 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2014-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84026659","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Highly Efficient Blue Fluorescent Organic Light-Emitting Diodes by Engineering Hole-Transporting/Exciton-Blocking Layer","authors":"Jeonghun Kwak, Jangwoo Chae, Su-Gwang Son, Byung-Jun Jung","doi":"10.1149/2.0011502SSL","DOIUrl":"https://doi.org/10.1149/2.0011502SSL","url":null,"abstract":"This paper reports low-voltage and high power efficiency bluefluorescent organic light-emitting diodes (FLOLEDs) using 4,4 � -bis[4(di-4-tolylamino)styryl]biphenyl (DPAVBi) as a fluorescent dye and 9,10-di(naphth-2-yl)anthracene (ADN) as a host. We studied the effect of using 1,1-bis{4-[N,N-di(p-tolyl)amino]-phenyl}cyclohexane (TAPC) as an exciton blocking layer in the blue FLOLEDs, and found the formation of electromers in TAPC at high current density. Based on the efforts toward high power efficiency and stability, we fabricated the blue FLOLEDs exhibiting low driving voltages of 2.9 V for 100 cd m−2 and 3.6 V for 1000 cd m−2 ,a maximum luminance of 43256 cd m−2 at 6.6 V, and a high power efficiency of 9.7 lm W−1 with reduced efficiency roll-off.","PeriodicalId":11423,"journal":{"name":"ECS Solid State Letters","volume":"2012 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2014-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86357004","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Plasma Treatment of Carbon Nanofibers Using an Anode Layer Ion Source for High-Performance Electrochemical Capacitors","authors":"Yu-jin Lee, Do‐Geun Kim, H. Ahn","doi":"10.1149/2.0061501SSL","DOIUrl":"https://doi.org/10.1149/2.0061501SSL","url":null,"abstract":"We synthesized carbon nanofibers(CNFs) by electrospinning and then activated their surface states via plasma treatment with an anode layer ion source. We studied the effects of various treatment times—0, 400, 800, and 1200 seconds—in order to identify the optimum conditions for plasma treatment. We investigated the morphological and structural properties, and the chemical composition of the CNFs using scanning electron microscopy, transmission electron microscopy, Raman spectroscopy, Fourier transform infrared spectroscopy, and X-ray photoelectron spectroscopy. The activated CNFs—plasma-treated for 1200s—exhibited excellent capacitance(∼173.25 F/g at 5 mV/s), superb cycling stability(∼92.59%), and the highest energy density(∼6.81 Wh/kg) among the different samples produced.","PeriodicalId":11423,"journal":{"name":"ECS Solid State Letters","volume":"78 4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2014-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72668898","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Haijie Guo, Wenbo Chen, Wei Zeng, Yuhua Wang, Yanyan Li
{"title":"A Long-Lasting Phosphor Ba3P4O13: Eu2+","authors":"Haijie Guo, Wenbo Chen, Wei Zeng, Yuhua Wang, Yanyan Li","doi":"10.1149/2.0051501SSL","DOIUrl":"https://doi.org/10.1149/2.0051501SSL","url":null,"abstract":"A new long-lasting phosphor Ba3P4O13: Eu2+ has been synthesized through the high temperature solid-state method. The excitation spectrum of Ba2.99P4O13: 0.01Eu(2+) is a broadband from 200 to 450 nm attributed to the 4f(7)-> 4f(6)5d(1) transition of Eu2+ ions. The emission spectrum of Ba2.99P4O13: 0.01Eu(2+) exhibits an asymmetric emission band ascribed to the 4f(7)-> 4f(6)5d(1) transition of Eu2+ ions in two different sites. Under the optimum doping concentration, the long-lasting phosphorescence (LLP) can persist for nearly 85 min at recognizable intensity level (>= 0.32 mcd/m(2)). The mechanism of afterglow is discussed briefly. (C) 2014 The Electrochemical Society. All rights reserved.","PeriodicalId":11423,"journal":{"name":"ECS Solid State Letters","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2014-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88588114","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
L. W. Zhou, X. Shao, C. Chen, Hao Jiang, Jian Wang, Ran Chen, Qing M. Zong, J. S. Zhao, L. Lv
{"title":"Electroforming-Free and Multilevel Resistance Switching Properties in Al/TiOx/Cu Structure","authors":"L. W. Zhou, X. Shao, C. Chen, Hao Jiang, Jian Wang, Ran Chen, Qing M. Zong, J. S. Zhao, L. Lv","doi":"10.1149/2.0021501SSL","DOIUrl":"https://doi.org/10.1149/2.0021501SSL","url":null,"abstract":"Resistance random access memory (RRAM) in various oxide materials,especiallybinaryoxidematerialssuchasTiO2, 1 ZrO2, 2 HfO2, 3 and ZnO, 4 has attracted considerable attention as one of the promising applications in next-generation nonvolatile semiconductor memory devices. Although the resistance switching (RS) materials can be classified into several groups according to switching mechanisms, this study focuses on combined different mechanisms effects on the RS performance in Al/TiOx/Cu. As Cu is an active metal in the electrochemical metallization memory (ECM), 5 adopting Cu as electrode may induce Cu conductive filaments (CFs). Meanwhile, because of the higher oxidation potential of Al compared with Ti, 6 adopting Al onTiOx mayinducetheoxygenvacancy (Vo)relatedRSmechanisms, such as electronic switching related with the trapping and detrapping of carriers along the Vo channels. 7 Particularly, when RRAM devices is programmed, a filament with trap-controlled space charge limited current (SCLC) could be formed, while a metallic CFs could also be formed. Therefore, multilevel resistance states may be obtained by forming different filaments inside the device. However, research on combining these two mechanisms remains to be clarified. During the resistance switching process, the “electroforming” process is usually needed to obtain the resistance switching. However, this process often results in the random fluctuations of switching parameters and needs a much higher bias, which are generally unfavorable for the device fabrication and operation. 8 In this paper, the characteristics of multilevel resistance switching, electroforming-free and low Ireset (the maximum current level changes from LRS to HRS) were investigated through Al/TiOx/Cu structure. The relationship between electroforming-free and low Ireset will be elucidated in this paper, as well as the multilevel resistance switching mechanism.","PeriodicalId":11423,"journal":{"name":"ECS Solid State Letters","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2014-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78318311","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}