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2016 23rd International Workshop on Active-Matrix Flatpanel Displays and Devices (AM-FPD)最新文献

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Blue phosphorescent organic light-emitting diode with triazole host achieving high current efficiency 以三唑为主体的蓝色磷光有机发光二极管,具有高电流效率
Yi-Hsin Lan, Y. Bai, Nai-Jing Chen, Jau-Jiun Huang, B. Lin, C. Hsiao, M. Leung, M. Wei, Chi-feng Lin, Tien‐Lung Chiu, Jiu-Haw Lee
We demonstrated a blue phosphorescent organic light-emitting diode with the maximum current efficiency and power efficiency of 57.4 cd/A and 51.6 lm/W, respectively, based on trizaole derivatives as the host of the emitting layer.
我们设计了一种基于三角形衍生物作为发光层主体的蓝色磷光有机发光二极管,其最大电流效率和功率效率分别为57.4 cd/ a和51.6 lm/W。
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引用次数: 0
Low-temperature poly-Si TFTs with sputtered HfO2 gate stack on glass substrate 在玻璃衬底上溅射HfO2栅极堆叠的低温多晶硅tft
A. Hara, Tatsuya Meguro
We discussed the performance of continuous-wave laser lateral crystallization (CLC) low-temperature (LT) polycrystalline-silicon (poly-Si) thin-film transistors (TFTs) fabricated at 550 °C with a sputtered metal gate and sputtered HfO2 gate dielectric on a nonalkaline glass substrate. The obtained field-effect mobility of CLC LT poly-Si TFTs with a HfO2 gate stack was 180 cm2/V s. However, the mobility of the HfO2 gate stack is lower than that of the PECVD-SiO2 gate stack. It was concluded that this is caused by scattering at defects and imperfections of both the inter layer (IL) SiO2 and the IL-SiO2/Si interface, but not by remote scattering from the high-k dielectric.
本文讨论了在非碱性玻璃衬底上使用溅射金属栅极和溅射HfO2栅极介质在550°C下制备的连续波激光横向结晶(CLC)低温多晶硅薄膜晶体管(TFTs)的性能。采用HfO2栅极叠加的CLC - LT多晶硅tft的场效应迁移率为180 cm2/V s,但HfO2栅极叠加的迁移率低于PECVD-SiO2栅极叠加。结果表明,这是由IL-SiO2和IL-SiO2/Si界面的缺陷和缺陷处的散射引起的,而不是由高k介电介质的远距离散射引起的。
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引用次数: 0
Oxygen partial pressure and annealing temperature influence on the performance of back-channel-etch zinc tin oxide thin film transistors 氧分压和退火温度对锌锡氧化物薄膜晶体管性能的影响
Yuxiang Xiao, Xiang Xiao, Letao Zhang, Xin Ju, Hongjuan Lu, Shengdong Zhang
Zinc tin oxide (ZTO) thin film transistors (TFTs) with back-channel-etch (BCE) structure are demonstrated. The influence of oxygen partial pressure during ZTO layer sputtering is discussed and an optimal O2/Ar ratio of 1% is achieved. The effect of annealing temperature is studied and the device annealed at 300°C performs well. The wet etching of Mo source/drain electrodes is carried out in Mo etchant which shows little damage to ZTO layer. The BCE ZTO TFT exhibits a field effect mobility of 1.88 cm2V-1s-1, a subthreshold slope of 0.37V/decade, and an on-off current ratio larger than 107. The comparable performances between BCE ZTO TFT and lift-off ZTO TFT indicate back-channel-etch ZTO TFT is a feasible technique and suitable for mass production.
研究了具有反通道腐蚀(BCE)结构的锌锡氧化物(ZTO)薄膜晶体管(TFTs)。讨论了氧分压对ZTO层溅射过程的影响,得到了最佳的O2/Ar比为1%。研究了退火温度对器件性能的影响,发现该器件在300℃退火后性能良好。Mo源极/漏极的湿法蚀刻在Mo蚀刻液中进行,对ZTO层的损伤很小。BCE ZTO TFT的场效应迁移率为1.88 cm2V-1s-1,亚阈值斜率为0.37V/ 10年,通断电流比大于107。BCE - ZTO - TFT和lift-off - ZTO - TFT的性能比较表明,后通道蚀刻ZTO - TFT是一种可行的、适合量产的技术。
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引用次数: 1
Correlation between contact angle and electrical properties in pentacene and C6-DNT-V-based organic thin film transistors 并五苯和c6 - dnt - v基有机薄膜晶体管接触角与电性能的关系
S. Shaari, S. Naka, H. Okada
We have fabricated pentacene and C6-DNT-V-based organic thin film transistors (OTFTs) with various types of interfacial layer. Eight different kinds of OTFTs were fabricated without and with interfacial layers (CT4112, PMMA, Cytop, OTS, HMDS, Ta2O5 and Si3N4). The surface properties of contact angle and electrical properties of OTFTs include charge carrier mobility, threshold voltage, and on/off current ratio were measured to compare and analyse the relationship between them. Some of the device properties show strong correlations, especially the relationship between contact angle and threshold voltage shows the strong correlation coefficient compare with others relationship. Correlation coefficient (R) between contact angle and threshold voltage was 0.83 for the pentacene and 0.88 for the C6-DNT-V-based OTFTs.
我们制备了具有不同类型界面层的并五苯和c6 - dnt - v基有机薄膜晶体管(OTFTs)。制备了无界面层和有界面层的8种otft (CT4112、PMMA、Cytop、OTS、HMDS、Ta2O5和Si3N4)。测量了接触角的表面性质和OTFTs的电学性质,包括载流子迁移率、阈值电压和开关电流比,比较和分析了它们之间的关系。器件的某些性能表现出较强的相关性,特别是接触角与阈值电压之间的关系比其他关系表现出较强的相关性。接触角与阈值电压的相关系数R分别为0.83和0.88。
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引用次数: 3
Optoelectronic properties and photo-physics of large grain hybrid perovskites 大晶粒杂化钙钛矿的光电特性和光物理
A. Mohite, W. Nie, J. Blancon, H. Tsai, Gautam Gupta
Organic-Inorganic or (Hybrid) perovskites are a special class of perovskites with a general chemical formula of AMX3 formed by using low-temperature synthesis approaches. They exhibit exceptional fundamental properties that have been translated into proof-of-principle demonstrations of photovoltaics (1), light emitting diodes(2), photodetectors(3), thermoelectric devices, lasers(4), photo-catalysts(5) and gamma ray detectors(6, 7) among which energy harvesting in photovoltaics has been the most studied(1, 8-15). While tremendous progress is being made, a fundamental bottleneck in that has existed in field is the high degree of variability in crystalline quality, grain-size, and microstructure of hybrid perovskites reported by the community. This has resulted in multiple interpretations of experimental data and thus key fundamental mechanisms remain largely unresolved. An ideal solution to this issue of non reliable properties is the ability to reproducibly grow hybrid perovskite thin-films with high degree of crystallinity, which allow access to the intrinsic physical properties, which are otherwise masked by non-reliable processing dependent microstructure. Here we present our recently developed fast thin-film crystal growth technique termed as hot-casting, which allows us to grow high crystalline quality, uniform, pinhole free films of hybrid perovskites with hundreds of microns to mm-scale grain-size. Investigation of photo-physical properties reveals that the resulting large grains behave as classical III-V direct band-gap semiconductors. However, as the grain-size decreases, the properties can no longer be described using models described for direct gap semiconductors. When incorporated into a simple "inverted" photovoltaic bilayer architecture with ITO/PEDOT:PSS/Perovskite/PCBM/Al, with no minimal optimization a hysteresis free device with a current-voltage curve of 15.37%. Electrical characterization using capacitance-voltage measurements and light-intensity dependence of the open circuit voltage suggest that perovskite films are intrinsic and the photogenerated charge carrier recombine through a bimolecular process, only observed in high quality semiconducting materials.
有机-无机或(杂化)钙钛矿是一类特殊的钙钛矿,其化学式一般为AMX3,是通过低温合成方法形成的。它们表现出特殊的基本特性,这些特性已被转化为光伏(1)、发光二极管(2)、光电探测器(3)、热电装置、激光器(4)、光催化剂(5)和伽马射线探测器(6,7)的原理验证演示,其中光伏中的能量收集研究最多(1,8 -15)。在取得巨大进展的同时,学界报道的杂化钙钛矿在晶体质量、晶粒尺寸和微观结构上的高度可变性是该领域存在的一个根本瓶颈。这导致了对实验数据的多种解释,因此关键的基本机制在很大程度上仍未解决。对于这一不可靠性能问题的理想解决方案是能够再生地生长具有高结晶度的杂化钙钛矿薄膜,从而可以获得固有的物理性能,否则这些物理性能将被不可靠的加工相关微观结构所掩盖。在这里,我们展示了我们最近开发的薄膜晶体快速生长技术,称为热铸造,它使我们能够生长出高结晶质量,均匀,无针孔的混合钙钛矿薄膜,其晶粒尺寸为数百微米到毫米。光物理性质的研究表明,所得到的大晶粒表现为经典的III-V直接带隙半导体。然而,随着晶粒尺寸的减小,这些特性不能再用直接间隙半导体的模型来描述。当将ITO/PEDOT:PSS/钙钛矿/PCBM/Al集成到简单的“倒置”光伏双层结构中时,无需最小优化,电流电压曲线为15.37%,无迟滞。利用电容电压测量和开路电压的光强依赖性进行电学表征表明,钙钛矿薄膜是固有的,光产生的电荷载流子通过双分子过程重组,仅在高质量的半导体材料中观察到。
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引用次数: 0
Perovskite/p-type crystal silicon tandem solar cells 钙钛矿/p型晶体硅串联太阳能电池
H. Kanda, A. Uzum, H. Nishino, S. Ito
In order to combine perovskite solar cell and crystal silicon solar cell, indium tin oxide as conductive layer is utilized in terms of high transparency. However, distortion of I-V curve was observed by spattering conductive layer on organic hole transport material layer (Spiro-OMeTAD). In order to analyze and find out the reason of the distortion of I-V curve, perovskite solar cell was fabricated with conductive layer deposited by spattering on the hole transport material changing spattering time. It was turned out that distortion of I-V curve was increased with increase of spattering time and different diode factor was observed by measuring dark I-V curve, which attribute to the distortion of I-V curve.
为了结合钙钛矿太阳能电池和晶体硅太阳能电池,利用铟锡氧化物作为导电层,具有高透明度。然而,在有机空穴输运材料层(Spiro-OMeTAD)上溅射导电层,观察到I-V曲线的畸变。为了分析和找出I-V曲线畸变的原因,通过改变溅射时间,在空穴输运材料上溅射沉积导电层来制备钙钛矿太阳能电池。结果表明,随着溅射时间的增加,I-V曲线的畸变增大,并且通过测量暗I-V曲线观察到不同的二极管因子,这归因于I-V曲线的畸变。
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引用次数: 1
Reduction of graphene oxide by atomic hydrogen annealing 原子氢退火法还原氧化石墨烯
A. Heya, N. Matsuo
Effect of atomic hydrogen annealing (AHA) on graphene oxide (GO) was investigated. In AHA, the high-density atomic hydrogen is generated on heated tungsten (W) surface by catalytic cracking reaction. From X-ray photoelectron spectra, GO films were reduced by AHA. The sheet resistance of the GO film was decreased by 5 orders of magnitude at W mesh temperature of 1780 °C, sample temperature of 220 °C and treatment time of 1800 s. The reduction of GO films relates chemical reaction due to atomic hydrogen because the GO films was not reduced by He treatment. The C-O-C bonds in GO films were preferentially reduced by AHA.
研究了原子氢退火(AHA)对氧化石墨烯(GO)的影响。在AHA中,通过催化裂化反应在加热的钨(W)表面生成高密度的原子氢。从x射线光电子能谱上看,氧化石墨烯薄膜被AHA还原。在W网温度为1780℃,样品温度为220℃,处理时间为1800 s时,氧化石墨烯薄膜的片电阻降低了5个数量级。氧化石墨烯薄膜的还原与原子氢的化学反应有关,因为氧化石墨烯薄膜没有经过He处理而还原。氧化石墨烯薄膜中的C-O-C键被AHA优先还原。
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引用次数: 0
High-performance low-temperature p-channel polycrystalline-germanium thin-film transistors via continuous wave laser crystallization 采用连续波激光结晶的高性能低温p沟道多晶锗薄膜晶体管
C. Wu, Yi-Shao Li, C. Chou, Huang-Chung Cheng
The continuous wave laser crystallization (CLC) has been considered as a suitable approach to achieve the high-quality Ge films. In order to further overcome the hole concentration of Ge thin films resulting from the acceptor-like defects, the counter-doping (CD) process with a suitable dose of n-type dopants was employed to convert the carrier type in Ge thin films. In this study, the high-performance low-temperature p-channel polycrystalline-germanium thin-film transistors (TFTs) have been demonstrated via continuous wave laser crystallization and counter doping to exhibit the low subthreshold swing of 432 mV/decade, a superior on/off current ratio of 4×103 and a high hole field-effect mobility of 290 cm2/V-s.
连续波激光结晶(CLC)被认为是制备高质量锗薄膜的合适方法。为了进一步克服类受体缺陷导致的锗薄膜空穴浓度过高的问题,采用反掺杂(CD)工艺,通过适当剂量的n型掺杂实现锗薄膜载流子类型的转化。在本研究中,通过连续波激光结晶和反掺杂,证明了高性能低温p沟道多晶锗薄膜晶体管(TFTs)具有432 mV/ 10年的低亚阈值摆幅,优越的开关电流比4×103和290 cm2/V-s的高空穴场效应迁移率。
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引用次数: 2
Performance enhancement of Pt/ZnO/Pt resistive random access memory (RRAM) with UV-Ozone treatment uv -臭氧处理增强Pt/ZnO/Pt电阻随机存取存储器(RRAM)的性能
Der-Long Chen, H. Yu, Chih-Chiang Yang, Y. Su, Cheng-Wei Chou, Jian-Long Ruan
The bipolar resistive switching characteristics of the Pt/ZnO/Pt resistive random access memory (RRAM) had been investigated. This work introduced UV-Ozone treatment to improve the interface quality between ZnO thin film and Pt electrode. We found that UV-Oznoe can help to clean the surface of Pt electrode and provide superior surface morphology for the subsequent sputtering ZnO thin film deposition. According the experiment result, the Pt/ZnO/Pt RRAM demonstrated better on-off current ratio and the excellent retention time after UV-Ozone treatment.
研究了Pt/ZnO/Pt电阻随机存取存储器(RRAM)的双极电阻开关特性。本文介绍了uv -臭氧处理提高ZnO薄膜与Pt电极界面质量的方法。我们发现UV-Oznoe可以帮助清洁Pt电极表面,并为后续溅射ZnO薄膜的沉积提供良好的表面形貌。实验结果表明,经uv -臭氧处理后的Pt/ZnO/Pt RRAM具有较好的通断电流比和较好的保留时间。
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引用次数: 1
Development of organic semiconducting technology to realize low driving voltages 发展有机半导体技术,实现低驱动电压
M. He, Chao Wang, Wen-Ya Lee, Desheng Kong, R. Pfattner, Weijun Niu, J. R. Matthews, Arthur L. Wallace, Zhenan Bao
Corning has developed three generations of polymeric organic semiconducting (OSC) materials, each with progressively improved electronic performance and processability. These materials possess excellent solubility, mobility and stability. Stanford University has developed a new polymer dielectric material based on a fluoroelastomer. Combined with Coming's OSC polymers, this enables easy to fabricate transistors with high transconductance, low driving voltage and excellent device stability, even in water.
康宁已经开发了三代聚合物有机半导体(OSC)材料,每一代都逐步提高了电子性能和可加工性。这些材料具有优异的溶解度、流动性和稳定性。斯坦福大学开发了一种基于氟弹性体的新型聚合物介电材料。结合Coming的OSC聚合物,这使得易于制造具有高跨导,低驱动电压和优异器件稳定性的晶体管,即使在水中也是如此。
{"title":"Development of organic semiconducting technology to realize low driving voltages","authors":"M. He, Chao Wang, Wen-Ya Lee, Desheng Kong, R. Pfattner, Weijun Niu, J. R. Matthews, Arthur L. Wallace, Zhenan Bao","doi":"10.1109/AM-FPD.2016.7543609","DOIUrl":"https://doi.org/10.1109/AM-FPD.2016.7543609","url":null,"abstract":"Corning has developed three generations of polymeric organic semiconducting (OSC) materials, each with progressively improved electronic performance and processability. These materials possess excellent solubility, mobility and stability. Stanford University has developed a new polymer dielectric material based on a fluoroelastomer. Combined with Coming's OSC polymers, this enables easy to fabricate transistors with high transconductance, low driving voltage and excellent device stability, even in water.","PeriodicalId":422453,"journal":{"name":"2016 23rd International Workshop on Active-Matrix Flatpanel Displays and Devices (AM-FPD)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134109474","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}
引用次数: 0
期刊
2016 23rd International Workshop on Active-Matrix Flatpanel Displays and Devices (AM-FPD)
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