Journal ArticleDOI
Low-Voltage Flexible Organic Electronics Based on High-Performance Sol–Gel Titanium Dioxide Dielectric
Sujin Sung,Sungjun Park,Won-June Lee,Jongho Son,Chang-Hyun Kim,Yoonhee Kim,Do Young Noh,Myung-Han Yoon +7 more
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TLDR
It is reported that high-performance insulating films can be generated by judicious control over the microstructure of sol-gel-processed titanium dioxide (TiO2) films, typically known as wide-bandgap semiconductors.Abstract:
In this letter, we report that high-performance insulating films can be generated by judicious control over the microstructure of sol–gel-processed titanium dioxide (TiO2) films, typically known as wide-bandgap semiconductors. The resultant device made of 23 nm-thick TiO2 dielectric layer exhibits a low leakage current density of ∼1 × 10–7 A cm–2 at 2 V and a large areal capacitance of 560 nF cm–2 with the corresponding dielectric constant of 27. Finally, low-voltage flexible organic thin-film transistors were successfully demonstrated by incorporating this versatile solution-processed oxide dielectric material into pentacene transistors on polyimide substrates.read more
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High- k Gate Dielectrics for Emerging Flexible and Stretchable Electronics
Binghao Wang,Binghao Wang,Wei Huang,Lifeng Chi,Mohammed Al-Hashimi,Tobin J. Marks,Antonio Facchetti +6 more
TL;DR: This review summarizes and analyzes recent advances in materials concepts as well as in thin-film fabrication techniques for high- k gate dielectrics when integrated with FSE-compatible semiconductors such as organics, metal oxides, quantum dot arrays, carbon nanotubes, graphene, and other 2D semiconductor types.
Journal ArticleDOI
Flexible Sensors—From Materials to Applications
Julio C. Costa,Filippo Spina,Pasindu Lugoda,Leonardo A. Garcia-Garcia,Daniel Roggen,Niko Munzenrieder +5 more
TL;DR: In this article, the current state of flexible sensor technologies and the impact of material developments on this field are discussed. And special attention is given to strain, temperature, chemical, light and electropotential sensors, as well as their respective applications.
Journal ArticleDOI
Organic Field-Effect Transistor for Energy-Related Applications: Low-Power-Consumption Devices, Near-Infrared Phototransistors, and Organic Thermoelectric Devices
Xiaochen Ren,Fangxu Yang,Xiong Gao,Shanshan Cheng,Xiaotao Zhang,Huanli Dong,Wenping Hu,Wenping Hu +7 more
Journal ArticleDOI
Flexible Polymeric Substrates for Electronic Applications
TL;DR: In this paper, a flexible substrate is defined when the material is processed such that individual component complies to a comparable degree of bending without deterioration of electronic/optoelectronic performance.
Journal ArticleDOI
Redox Chloride Elimination Reaction: Facile Solution Route for Indium‐Free, Low‐Voltage, and High‐Performance Transistors
Ao Liu,Zidong Guo,Guoxia Liu,Chundan Zhu,Huihui Zhu,Byoung-Chul Shin,Elvira Fortunato,Rodrigo Martins,Fukai Shan +8 more
TL;DR: In this article, high-k HfO2 dielectrics and amorphous ZnSnO (ZTO) semiconductors are synthesized via a simple and facile redox reaction by introducing perchloric acid (HClO4, PA) as oxidizer to eliminate the Cl residuals.
References
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Journal ArticleDOI
A review on the visible light active titanium dioxide photocatalysts for environmental applications
Miguel Pelaez,Nicholas T. Nolan,Suresh C. Pillai,Michael K. Seery,Polycarpos Falaras,Athanassios G. Kontos,Psm Dunlop,Jwj Hamilton,John Byrne,Kevin E. O'Shea,Mh. Entezari,Dionysios D. Dionysiou +11 more
TL;DR: In this paper, the development of different strategies to modify TiO2 for the utilization of visible light, including non metal and/or metal doping, dye sensitization and coupling semiconductors are discussed.
Journal ArticleDOI
TiO2 Photocatalysis: A Historical Overview and Future Prospects
TL;DR: In this paper, the progress of the scientific research on TiO2 photocatalysis as well as its industrial applications are reviewed, and future prospects of this field mainly based on the present authors' work.
Journal ArticleDOI
New Architecture for High-Efficiency Polymer Photovoltaic Cells Using Solution-Based Titanium Oxide as an Optical Spacer
Jin Young Kim,Jin Young Kim,Sun Hee Kim,Hyun-Ho Lee,Kwanghee Lee,Wanli Ma,Xiong Gong,Alan J. Heeger +7 more
TL;DR: In this paper, an optical spacer between the active layer and the Al electrode is proposed to redistribute the light intensity inside the device by introducing an optical sensor. But the spacer is not suitable for the case of thin-film photovoltaic cells.
Journal ArticleDOI
Mesoporous Anatase TiO2 Beads with High Surface Areas and Controllable Pore Sizes: A Superior Candidate for High‐Performance Dye‐Sensitized Solar Cells
Journal ArticleDOI
High Efficiency Solid-State Sensitized Solar Cell-Based on Submicrometer Rutile TiO2 Nanorod and CH3NH3PbI3 Perovskite Sensitizer
Hui-Seon Kim,Jin-Wook Lee,Natalia Yantara,Pablo P. Boix,Sneha A. Kulkarni,Subodh Mhaisalkar,Michael Grätzel,Nam-Gyu Park +7 more
TL;DR: A continuous drop of voltage with increasing nanorod length correlated with charge generation efficiency rather than recombination kinetics with impedance spectroscopic characterization displaying similar recombination regardless of the nanorods length.