Solution processable formation of a few nanometer thick-disordered overlayer on the surface of open-ended TiO2 nanotubes

2016 ◽  
Vol 52 (95) ◽  
pp. 13807-13810 ◽  
Author(s):  
Soon Woo Kwon ◽  
Ming Ma ◽  
Myung Jin Jeong ◽  
Kan Zhang ◽  
Sung June Kim ◽  
...  
Keyword(s):  
Tio2 Nanotubes ◽  
Room Temperature ◽  
Solution Process ◽  
Nanotube Arrays ◽  
Temperature Solution ◽  
Vertically Aligned ◽  
Solution Processable

Herein, we designed vertically aligned TiO2 nanotube arrays, in which a very thin disordered overlayer approximately a few nm thick was formed via a room-temperature solution process.

scholarly journals Room-temperature, solution-processable organic electron extraction layer for high-performance planar heterojunction perovskite solar cells

Nanoscale ◽  
2015 ◽  
Vol 7 (41) ◽  
pp. 17343-17349 ◽  
Author(s):  
Jong H. Kim ◽  
Chu-Chen Chueh ◽  
Spencer T. Williams ◽  
Alex K.-Y. Jen
Keyword(s):  
High Performance ◽  
Room Temperature ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Perovskite Solar Cell ◽  
Organic Electron ◽  
Temperature Solution ◽  
Solution Processable ◽  
Planar Heterojunction ◽  
Electron Extraction

High-efficiency (15.7%) perovskite solar cell is demonstrated based on a room-temperature and solution processable organic electron extraction layer.

Doping Versatile n-Type Organic Semiconductors via Room Temperature Solution-Processable Anionic Dopants

2016 ◽  
Vol 9 (1) ◽  
pp. 1136-1144 ◽  
Author(s):  
Chu-Chen Chueh ◽  
Chang-Zhi Li ◽  
Feizhi Ding ◽  
Zhong’an Li ◽  
Nathan Cernetic ◽  
...  
Keyword(s):  
Organic Semiconductors ◽  
Room Temperature ◽  
Temperature Solution ◽  
Solution Processable

Tailoring the Structure of Low‐Dimensional Halide Perovskite through a Room Temperature Solution Process: Role of Ligands

Small Methods ◽  
2021 ◽  
pp. 2100054
Author(s):  
Young‐Taek Yoo ◽  
Do Yeon Heo ◽  
Sa‐Rang Bae ◽  
Jinwoo Park ◽  
Tae‐Woo Lee ◽  
...  
Keyword(s):  
Room Temperature ◽  
Solution Process ◽  
Temperature Solution ◽  
Halide Perovskite ◽  
Low Dimensional

A room temperature approach for the fabrication of aligned TiO2 nanotube arrays on transparent conductive substrates

2016 ◽  
Vol 52 (21) ◽  
pp. 4045-4048 ◽  
Author(s):  
Ruosha Zeng ◽  
Ke Li ◽  
Xia Sheng ◽  
Liping Chen ◽  
Haijiao Zhang ◽  
...  
Keyword(s):  
Room Temperature ◽  
Tio2 Nanotube Arrays ◽  
Tio2 Nanotube ◽  
Nanotube Arrays ◽  
Solution Approach ◽  
Temperature Solution ◽  
Conductive Substrates

A novel room-temperature solution-approach is reported for the fabrication of highly crystallized TiO2 nanotube arrays on transparent conductive substrates.

Connected AZO Nanorods for Sensitivity Enhancement of Chemical Sensors at Room Temperature

2018 ◽  
Author(s):  
Dinesh Kumar ◽  
Zingway Pei
Keyword(s):  
Thin Film ◽  
Chemical Sensors ◽  
Room Temperature ◽  
High Surface ◽  
Hydrothermal Process ◽  
High Surface Area ◽  
Solution Process ◽  
Xps Characterization ◽  
High Layer ◽  
Vertically Aligned

In this work, the vertically aligned, high conductive Al-doped ZnO nanorod thin film was prepared by multi-layers grown method in solution process .This method of connected nanorod structure is unique of its kind compared with existing hydrothermal process for preparing nanorod. The diameter of AZO nanorod is around 14~16nm with [002] preferred orientation. The Hall measurement indicates the AZO nanorod exhibits high layer conductivity of 280 S/cm. The XPS characterization indicates that the AZO nanorod annealed in forming gas contain high percentage of non-binding oxygens that is suitable for sensor application. The sensing performances of the synthesized nanorod thin film towards the detection of oxidizing agents were analyzed by the current (I)–voltage (V) characteristics in room temperature. With high surface area, the AZO shows sensitivity of 72%, 1660%, and 4.34 x106 % for H2O2, ethanolamine and acetic acid, respectively. 1.02 μM (S/N=3) is the detection limit with broad range of 0.015mM to 29mM is demonstrated for sensing H2O2.

GeTe-Based Alloy Films Prepared by a Room Temperature Solution Process

2020 ◽  
Vol 20 (11) ◽  
pp. 6665-6668
Author(s):  
Hye Ryeon Yoon ◽  
Yoon Ee Jo ◽  
Eun Kyu Lee ◽  
Eun Ji Kim ◽  
Seung-Yun Lee
Keyword(s):  
Spin Coating ◽  
Room Temperature ◽  
Solution Process ◽  
Dissolution Behavior ◽  
X Ray Diffraction ◽  
Alloy Films ◽  
X Ray ◽  
Smooth Film ◽  
Temperature Solution ◽  
Coating Parameter

This article describes the preparation of GeTe-based alloy films using a solution-based technique. The dissolution behavior of GeTe was initially examined by comparing the weight loss of GeTe powder in different solvents, and it was found that, unlike in the cases of n-butylamine and NH4OH, KOH fully dissolved GeTe to form an agglomerate-free solution. X-ray diffraction analysis revealed that the reaction between GeTe and KOH resulted in the formation of rhombohedral GeTe, cubic GeTe4, and hexagonal Te structures after drying. GeTe-based alloy films were then prepared by the spin coating of the GeTe-containing solutions on a silicon substrate. The surface morphology and reflectance properties of the prepared films were found to be highly dependent on the spin speed, with optimization of the spin coating parameter resulting in the deposition of a continuous and smooth film.

Vertically Aligned Carbon-Nanotube Arrays Showing Schottky Behavior at Room Temperature

Small ◽  
2005 ◽  
Vol 1 (5) ◽  
pp. 553-559 ◽  
Author(s):  
Seung-Ho Jung ◽  
Soo-Hwan Jeong ◽  
Sang-Uck Kim ◽  
Sun-Kyu Hwang ◽  
Pyung-Soo Lee ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Room Temperature ◽  
Nanotube Arrays ◽  
Carbon Nanotube Arrays ◽  
Vertically Aligned

scholarly journals Rapid Growth of TiO2 Nanoflowers via Low-Temperature Solution Process: Photovoltaic and Sensing Applications

Materials ◽  
2019 ◽  
Vol 12 (4) ◽  
pp. 566 ◽  
Author(s):  
M. Akhtar ◽  
Ahmad Umar ◽  
Swati Sood ◽  
InSung Jung ◽  
H. Hegazy ◽  
...  
Keyword(s):  
Low Temperature ◽  
Anatase Phase ◽  
Three Dimensional ◽  
Solution Process ◽  
Dye Sensitized Solar Cell ◽  
Sensor Applications ◽  
Dye Sensitized ◽  
Sensing Applications ◽  
Density Growth ◽  
Temperature Solution

This paper reports the rapid synthesis, characterization, and photovoltaic and sensing applications of TiO2 nanoflowers prepared by a facile low-temperature solution process. The morphological characterizations clearly reveal the high-density growth of a three-dimensional flower-shaped structure composed of small petal-like rods. The detailed properties confirmed that the synthesized nanoflowers exhibited high crystallinity with anatase phase and possessed an energy bandgap of 3.2 eV. The synthesized TiO2 nanoflowers were utilized as photo-anode and electron-mediating materials to fabricate dye-sensitized solar cell (DSSC) and liquid nitroaniline sensor applications. The fabricated DSSC demonstrated a moderate conversion efficiency of ~3.64% with a maximum incident photon to current efficiency (IPCE) of ~41% at 540 nm. The fabricated liquid nitroaniline sensor demonstrated a good sensitivity of ~268.9 μA mM−1 cm−2 with a low detection limit of 1.05 mM in a short response time of 10 s.

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