scholarly journals Microwave assisted synthesis and characterisation of a zinc oxide/tobacco mosaic virus hybrid material. An active hybrid semiconductor in a field-effect transistor device

2015 ◽  
Vol 6 ◽  
pp. 785-791 ◽  
Author(s):  
Shawn Sanctis ◽  
Rudolf C Hoffmann ◽  
Sabine Eiben ◽  
Jörg J Schneider

Tobacco mosaic virus (TMV) has been employed as a robust functional template for the fabrication of a TMV/zinc oxide field effect transistor (FET). A microwave based approach, under mild conditions was employed to synthesize stable zinc oxide (ZnO) nanoparticles, employing a molecular precursor. Insightful studies of the decomposition of the precursor were done using NMR spectroscopy and material characterization of the hybrid material derived from the decomposition was achieved using dynamic light scattering (DLS), transmission electron microscopy (TEM), grazing incidence X-ray diffractometry (GI-XRD) and atomic force microscopy (AFM). TEM and DLS data confirm the formation of crystalline ZnO nanoparticles tethered on top of the virus template. GI-XRD investigations exhibit an orientated nature of the deposited ZnO film along the c-axis. FET devices fabricated using the zinc oxide mineralized virus template material demonstrates an operational transistor performance which was achieved without any high-temperature post-processing steps. Moreover, a further improvement in FET performance was observed by adjusting an optimal layer thickness of the deposited ZnO on top of the TMV. Such a bio-inorganic nanocomposite semiconductor material accessible using a mild and straightforward microwave processing technique could open up new future avenues within the field of bio-electronics.

2020 ◽  
Vol 33 (1) ◽  
pp. 31-36
Author(s):  
G. Balanagireddy ◽  
Ashwath Narayana ◽  
M. Roopa

A low-cost and green-synthesized zinc oxide nanostructured particles are extensively studied owing to their remarkable and ample characteristics with less toxicity and eco-friendly approach. The present work comprehends the green synthesis of ZnO nanostructured particles using bougainvillea leaf extract-arbitrated microwave-assisted synthesis and their use in field effect transistor for nitrogen dioxide sensing at room temperature. The as-synthesized nanoparticles were characterized using analytical techniques; XRD determined the pure crystallite structure with no impurities, SEM confirmed the spherical shape of nanoparticles with ~20 nm (average particle size) and the atomic weight percentage were analyzed using EDAX, notable photophysical properties were revealed from absorption and emission spectra performed using UV-visible spectroscopy. Poly(3-hexylthiophene) and ZnO nanoparticles were employed in the field effect transistor (p-type) for NO2 sensing at room temperature with the mobility (field-effect) of ~10-4 cm2 V-1 s-1. The sensitivity of the fabricated OFET device was extracted from the transistor characteristics (at Vgs = -30 V and Vds = -40 V) found to be ~4.8 × 10-3 nA/ppm. The device exhibited engrossing characteristics such as excellent recoverability (> 95%), with ultrafast response time (< 30 s) and greater sensitivity with high stability as can be assessed from the electrical characteristics.


2016 ◽  
Vol 4 (30) ◽  
pp. 7345-7352 ◽  
Author(s):  
Rudolf C. Hoffmann ◽  
Shawn Sanctis ◽  
Emre Erdem ◽  
Stefan Weber ◽  
Jörg J. Schneider

Variation of the ligand framework in 1,3-substituted zinc-diketonates provides a straightforward way to control size, morphology and electronic properties of semiconducting zinc oxide nanoparticles.


Nano Letters ◽  
2016 ◽  
Vol 16 (2) ◽  
pp. 1293-1298 ◽  
Author(s):  
Pyo Jin Jeon ◽  
Young Tack Lee ◽  
June Yeong Lim ◽  
Jin Sung Kim ◽  
Do Kyung Hwang ◽  
...  

2016 ◽  
Vol 4 (37) ◽  
pp. 8758-8764 ◽  
Author(s):  
Gaole Dai ◽  
Jingjing Chang ◽  
Linzhi Jing ◽  
Chunyan Chi

Two diacenopentalene dicarboximides were synthesized, and their devices made with solution-processing technique exhibited n-type field-effect transistor behavior with electron mobility of up to 0.06 cm2 V−1 s−1.


2020 ◽  
Vol 1 (2) ◽  
pp. 14-21
Author(s):  
Chaw Su Nandar Hlaing Chaw ◽  
Thiri Nwe

This paper presents the band gap design and J-V characteristic curve of Zinc Oxide (ZnO) based on Junction Field Effect Transistor (JFET). The physical properties for analysis of semiconductor field effect transistor play a vital role in semiconductor measurements to obtain the high-performance devices. The main objective of this research is to design and analyse the band diagram design of semiconductor materials which are used for high performance junction field effect transistor. In this paper, the fundamental theory of semiconductors, the electrical properties analysis and bandgap design of materials for junction field effect transistor are described. Firstly, the energy bandgaps are performed based on the existing mathematical equations and the required parameters depending on the specified semiconductor material. Secondly, the J-V characteristic curves of semiconductor material are discussed in this paper. In order to achieve the current-voltage characteristic for specific junction field effect transistor, numerical values of each parameter which are included in analysis are defined and then these resultant values are predicted for the performance of junction field effect transistors. The computerized analyses have also mentioned in this paper.


Nanoscale ◽  
2018 ◽  
Vol 10 (43) ◽  
pp. 20377-20383 ◽  
Author(s):  
Youngjun Kim ◽  
Byoungnam Park

We fabricated a zinc oxide (ZnO)/methylammonium lead iodide (MAPbI3) perovskite/ZnO field effect transistor (FET) test platform device through which ZnO/perovskite interfacial contact properties can be probed in the dark and under illumination.


2006 ◽  
Author(s):  
V. A. L. Roy ◽  
Zong-Xiang Xu ◽  
Beiping Yan ◽  
Hei-Feng Xiang ◽  
Chi-Ming Che

Sign in / Sign up

Export Citation Format

Share Document