High-Detectivity and sensitive UVA photodetector of polycrystalline CH3NH3PbCl3 improved by α-Ga2O3 nanorod array

Highly efficient and effective porous ZnO nanorod arrays were fabricated by annealing ZnO nanorod arrays grown on a substrate using a simple hydrothermal method. The annealing had a positive effect on the nanorod morphology, structure and optical properties. The porosity was closely related to the annealing temperature. After heating at 450 °C, pores appeared on the nanorods. It was demonstrated that the porosity could be exploited to improve the visible light absorption of ZnO and reduce the bandgap from 3.11 eV to 2.99 eV. A combination of improved charge separation and transport of the heat-treated ZnO thus led to an increase in the photoelectrochemical properties. At an irradiation intensity of 100 mW/cm−2, the photocurrent density of the porous nanorod array was approximately 1.3 mA cm−2 at 1.2 V versus Ag/AgCl, which was five times higher than that of the ZnO nanorods. These results revealed the synthesis of promising porous ZnO nanorods for photoelectrochemical applications.

Download Full-text

Single-crystalline rutile TiO2 nanorod array on flexible Ti substrates for efficient photoelectrocatalytic degradation of phenol in water

Thin Solid Films ◽

10.1016/j.tsf.2020.138494 ◽

2021 ◽

Vol 719 ◽

pp. 138494

Author(s):

Juan Xie ◽

Wei Wen ◽

Rui Jiang ◽

Jin-Ming Wu

Keyword(s):

Nanorod Array ◽

Rutile Tio2 ◽

Single Crystalline ◽

Tio2 Nanorod ◽

Tio2 Nanorod Array ◽

Photoelectrocatalytic Degradation

Download Full-text

Reusable TiN Substrate for Surface Plasmon Resonance Heterodyne Phase Interrogation Sensor

Nanomaterials ◽

10.3390/nano10071325 ◽

2020 ◽

Vol 10 (7) ◽

pp. 1325 ◽

Cited By ~ 3

Author(s):

Ru-Jing Sun ◽

Hung Ji Huang ◽

Chien-Nan Hsiao ◽

Yu-Wei Lin ◽

Bo-Huei Liao ◽

...

Keyword(s):

Refractive Index ◽

Surface Plasmon Resonance ◽

Surface Plasmon ◽

Plasmon Resonance ◽

High Sensitivity ◽

Nanorod Array ◽

Glass Substrates ◽

Sensing Applications ◽

Bulk Charge ◽

Phase Interrogation

A TiN-based substrate with high reusability presented high-sensitivity refractive index measurements in a home-built surface plasmon resonance (SPR) heterodyne phase interrogation system. TiN layers with and without additional inclined-deposited TiN (i-TiN) layers on glass substrates reached high bulk charge carrier densities of 1.28 × 1022 and 1.91 × 1022 cm−3, respectively. The additional 1.4 nm i-TiN layer of the nanorod array presented a detection limit of 6.1 × 10−7 RIU and was higher than that of the 46 nm TiN layer at 1.2 × 10−6 RIU when measuring the refractive index of a glucose solution. Furthermore, the long-term durability of the TiN-based substrate demonstrated by multiple processing experiments presented a high potential for various practical sensing applications.

Download Full-text

Facile Synthesis of [101]-Oriented Rutile TiO2 Nanorod Array on FTO Substrate with a Tunable Anatase–Rutile Heterojunction for Efficient Solar Water Splitting

ACS Sustainable Chemistry & Engineering ◽

10.1021/acssuschemeng.6b01066 ◽

2016 ◽

Vol 4 (11) ◽

pp. 5963-5971 ◽

Cited By ~ 37

Author(s):

Hogiartha Sutiono ◽

Alok M. Tripathi ◽

Hung-Ming Chen ◽

Ching-Hsiang Chen ◽

Wei-Nien Su ◽

...

Keyword(s):

Water Splitting ◽

Nanorod Array ◽

Facile Synthesis ◽

Rutile Tio2 ◽

Solar Water ◽

Tio2 Nanorod ◽

Solar Water Splitting ◽

Tio2 Nanorod Array

Download Full-text

Constructing PbS quantum dot sensitized ZnO nanorod array photoelectrodes for highly efficient photovoltaic devices

Canadian Journal of Physics ◽

10.1139/cjp-2016-0142 ◽

2016 ◽

Vol 94 (7) ◽

pp. 687-692

Author(s):

Masood Mehrabian ◽

Naser Ghasemian

Keyword(s):

Quantum Dot ◽

Short Circuit ◽

Zno Nanorods ◽

Growth Period ◽

Short Circuit Current ◽

Nanorod Array ◽

Open Circuit ◽

Zno Film ◽

Photovoltaic Properties ◽

Pbs Quantum Dot

Solar cells with ZnO film/ZnO nanorods (NRs)/PbS quantum dot (QD) photoelectrodes were constructed and various properties were studied. The ZnO NRs were grown for different periods varying from 0 (ZnO film) to 30 min (ZnO NR30) and the effect of growth period on the photovoltaic properties was investigated. The cell with ZnO film/PbS QD as photoelectrode showed the open circuit voltage VOC of 0.59 V, short circuit current density JSC of 10.06 mAcm−2, and the power conversion efficiency of 3.29% under one sun illumination (air mass 1.5 global illumination at 100 mWcm−2). In a device containing of ZnO film/ZnO NR10/PbS QD (as photoelectrode), mentioned photovoltaic parameters increased to 0.61 V, 10.47 mAcm−2 and 3.81%, respectively.

Download Full-text