K. Shinbo, C. Lertvachirapaiboon, Y. Ohdaira, A. Baba, K. Kato
{"title":"Fabrication of a quartz-crystal microbalance/surface-plasmon-resonance hybrid sensor and taking advantage of their responses for evaluation of thin films and liquids","authors":"K. Shinbo, C. Lertvachirapaiboon, Y. Ohdaira, A. Baba, K. Kato","doi":"10.23919/AM-FPD.2019.8830578","DOIUrl":"https://doi.org/10.23919/AM-FPD.2019.8830578","url":null,"abstract":"Hybrid sensors of quartz crystal microbalance (QCM) and surface plasmon resonance (SPR) were prepared, and the film depositions, vapor sorptions to polymer films, and liquid properties were observed. The relationship between the SPR wavelength and QCM frequency shifts depends on both the refractive index and the density of the adsorbed molecule and would give information for identification. Furthermore, the swelling of the film can be monitored using the different laws of nature in the SPR and QCM methods.","PeriodicalId":129222,"journal":{"name":"2019 26th International Workshop on Active-Matrix Flatpanel Displays and Devices (AM-FPD)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117060583","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":"Flash-Lamp Annealing for Manufacturing of Reduced Thermal Budget Self-Aligned LTPS TFTs","authors":"Glenn Packard, R. Manley, K. Hirschman","doi":"10.23919/AM-FPD.2019.8830629","DOIUrl":"https://doi.org/10.23919/AM-FPD.2019.8830629","url":null,"abstract":"Flash lamp annealing is explored as a replacement process for crystallization of amorphous silicon and activation of boron introduced subsequently by ion implantation. Single-stage crystallization/activation and two-stage crystallization + activation flash-lamp anneal processes were investigated for evaluation of boron activation. The two-stage process had an initial high intensity pre-implant crystallization treatment, followed by a lower intensity post-implant activation treatment which avoided a melt phase. The single-stage process included only the latter post-implant treatment which served to solid-phase crystallize amorphous silicon and activate boron simultaneously. The two-stage process was found to be superior in supporting highly conductive source/drain regions, with further enhancement in boron activation achieved via silicon mesa pre-patterning, reliably attaining sheet resistances less than 1 kΩ/□. This process was used to produce self-aligned PMOS TFTs on glass with reduced thermal budget, reinforcing the feasibility of flash lamp annealing in display manufacturing.","PeriodicalId":129222,"journal":{"name":"2019 26th International Workshop on Active-Matrix Flatpanel Displays and Devices (AM-FPD)","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121824670","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}
Hyeong-Rae Kim, Sol-Mi Kwak, Furutua Mamoru, Sung‐Min Yoon
{"title":"Mechanically Flexible Vertical Thin-Film Transistor with Sub-Micrometer Channel Length Using ZnO Channel and ZeocoatTM Spacer on Ultra-Thin Polyimide Substrate","authors":"Hyeong-Rae Kim, Sol-Mi Kwak, Furutua Mamoru, Sung‐Min Yoon","doi":"10.23919/AM-FPD.2019.8830591","DOIUrl":"https://doi.org/10.23919/AM-FPD.2019.8830591","url":null,"abstract":"A mechanically flexible vertical-channel thin film transistor (VTFT) with a channel length of 200 nm was fabricated on a 1.2-μm-thick polyimide substrate. The vertical gate-stack was prepared by forming all the layers by atomic layer deposition except for the source and drain electrodes. The ZeocoatTM thin film was introduced as a spacer instead of the previous one containing fluorine ions. The transfer characteristics of the fabricated flexible VTFT achieved an ION/IOFF of 1.4×104 after the post annealing process at 150 °C. The shifts in threshold voltage under positive and negative bias stresses were estimated to be +2.5 and −3.5 V for 104 s, respectively. The flexible VTFTs were successfully delaminated from the carrier glass via a laser lift-off process and evaluated under mechanically strained conditions at various radius of curvatures (Rc’s). There were no significant changes in the device characteristics even at an Rc of 1 mm.","PeriodicalId":129222,"journal":{"name":"2019 26th International Workshop on Active-Matrix Flatpanel Displays and Devices (AM-FPD)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133788287","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":"Photovoltaic Characteristics of Passivated Emitter and Rear Contact Silicon Solar Cells with Chemical and Molybdenum Oxides Stacked Films","authors":"Chin-Lung Cheng, C. Liu, Kun-Hung Liao","doi":"10.23919/AM-FPD.2019.8830555","DOIUrl":"https://doi.org/10.23919/AM-FPD.2019.8830555","url":null,"abstract":"Photovoltaic characteristics of passivated emitter and rear contact (PERC) silicon solar cells with chemical and molybdenum oxides stacked thin films were investigated. Chemical oxides were formed by various nitric acid solutions. Molybdenum oxides were performed by thermal evaporation from granules of MoO2 (99.9% purity). The parameters, including the concentration and treated time of nitric acid, were investigated.. Compared with the PERC without chemical oxide, the achievement of a conversion efficiency (CE) improvement of more than 0.6% absolute from 18% to 18.6% in PERCs with chemical oxide formed at 25% for 30 s was explored. The promoted mechanism could be attributed to the large negative Qot in SiOx/MoOx bulk stacked films and low Dit in MoOx/SiOx/Si(100) interface.","PeriodicalId":129222,"journal":{"name":"2019 26th International Workshop on Active-Matrix Flatpanel Displays and Devices (AM-FPD)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125280171","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":"Technology Trends","authors":"Bernhard Straub","doi":"10.23919/AM-FPD.2019.8830575","DOIUrl":"https://doi.org/10.23919/AM-FPD.2019.8830575","url":null,"abstract":"Beside mobile devices with foldable displays and bigger displays in global TV sales, the size of the automotive displays market continuously increase and manufacturers may start to look beyond LCD [1]. These major trends indicate demands of society in terms of convenient interconnected information and communication as well as premium entertainment. Following the technology trends of displays for consumer electronic devices, automotive applications offer a variety of chances for display innovations and challenges for new display technologies. Up to now the automotive display market is still dominated by LCD, but OLED displays are attracting interest and in future, μLED displays could become the appropriate and preferred technology for vehicular displays. In this paper, technology trends with respect to dedicated automotive display applications and interior integration aspects will be discussed and evaluated.","PeriodicalId":129222,"journal":{"name":"2019 26th International Workshop on Active-Matrix Flatpanel Displays and Devices (AM-FPD)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131034802","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}
T. Chiba, Yukihiro Hayashi, Keigo Hoshi, H. Ebe, J. Kido
{"title":"Anion Exchange Perovskite Quantum-Dots for Highly Efficient Light-Emitting-Devices","authors":"T. Chiba, Yukihiro Hayashi, Keigo Hoshi, H. Ebe, J. Kido","doi":"10.23919/AM-FPD.2019.8830614","DOIUrl":"https://doi.org/10.23919/AM-FPD.2019.8830614","url":null,"abstract":"All inorganic cesium lead halide perovskite with CsPbX 3 (X = Cl − , Br − , or I − ) have been demonstrated a novel classified colloidal quantum dots (QDs). 1) Perovskite QDs have also expected great potential for the application in light-emitting devices (LEDs) due to their superior chemical stability, narrow emission spectra enable coverage the next generation of standard for display, B.T. 2020 color gamut, high photoluminescence quantum yields (PLQYs) of up to 90%, plainly tunable emission wavelength in full visible range by halide anion composition (X site = Cl − for blue emission, Br − for green emission, or I − for red emission) or size of QDs. Perovskite QDs are consisted almost entirely of inorganic elements, the energy levels of perovskite QDs are similar to the organic light-emitting materials, which lead to fabrication of device with similar structure of organic light-emitting devices (OLEDs). The external quantum efficiency (EQE) of LEDs based on CsPbX 3 QDs have rapidly increased from 0.1% to over 20% for past only few years. 2 – 5)","PeriodicalId":129222,"journal":{"name":"2019 26th International Workshop on Active-Matrix Flatpanel Displays and Devices (AM-FPD)","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123115574","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":"Perovskite Material and Solar Cell Research by Surface Science and Advanced Characterization","authors":"Y. Qi","doi":"10.29363/NANOGE.AP-HOPV.2018.062","DOIUrl":"https://doi.org/10.29363/NANOGE.AP-HOPV.2018.062","url":null,"abstract":"Perovskite solar cell research continues to progress rapidly on various fronts. My group at OIST is making efforts to use surface science and advanced material characterization to obtain in-depth understanding about perovskite materials and solar cells. Instability and upscalability are currently the major challenges for perovskite photovoltaic technology to move forward towards commercialization [1]. In this talk, I will present our research progress on degradation mechanisms of perovskite materials [2], development of strategies to improve perovskite solar cell device stability [3], upscalable fabrication of perovskite solar cells and modules [4], and surface science understanding of perovskite materials and stability [5].","PeriodicalId":129222,"journal":{"name":"2019 26th International Workshop on Active-Matrix Flatpanel Displays and Devices (AM-FPD)","volume":"31 14-15","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114043771","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}