scholarly journals A turn-on fluorogenic chemosensor for Fe3+ and a Schottky barrier diode with frequency-switching device applications

2018 ◽  
Vol 17 (4) ◽  
pp. 465-473 ◽  
Author(s):  
Habib Ali Molla ◽  
Rahul Bhowmick ◽  
Abu Saleh Musha Islam ◽  
Bibhutibhushan Show ◽  
Nillohit Mukherjee ◽  
...  
Keyword(s):  
Schottky Barrier ◽  
Schottky Barrier Diode ◽  
Fluorescent Chemosensor ◽  
Switching Device ◽  
Turn On ◽  
Highly Sensitive ◽  
Device Applications

A novel highly sensitive and selective fluorescent chemosensor L has been synthesized and characterized by various physicochemical techniques.

scholarly journals The Effect of Bilayer Graphene Nanoribbon Geometry on Schottky-Barrier Diode Performance

2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
Meisam Rahmani ◽  
Razali Ismail ◽  
Mohammad Taghi Ahmadi ◽  
Mohammad Javad Kiani ◽  
Mehdi Saeidmanesh ◽  
...  
Keyword(s):  
Schottky Barrier ◽  
Bilayer Graphene ◽  
Graphene Nanoribbon ◽  
Voltage Characteristic ◽  
Schottky Barrier Diode ◽  
Current Voltage Characteristic ◽  
Turn On ◽  
Forward Current ◽  
Current Voltage ◽  
Bilayer Graphene Nanoribbon

Bilayer graphene nanoribbon is a promising material with outstanding physical and electrical properties that offers a wide range of opportunities for advanced applications in future nanoelectronics. In this study, the application of bilayer graphene nanoribbon in schottky-barrier diode is explored due to its different stacking arrangements. In other words, bilayer graphene nanoribbon schottky-barrier diode is proposed as a result of contact between a semiconductor (AB stacking) and metal (AA stacking) layers. To this end, an analytical model joint with numerical solution of carrier concentration for bilayer graphene nanoribbon in the degenerate and nondegenerate regimes is presented. Moreover, to determine the proposed diode performance, the carrier concentration model is adopted to derive the current-voltage characteristic of the device. The simulated results indicate a strong bilayer graphene nanoribbon geometry and temperature dependence of current-voltage characteristic showing that the forward current of the diode rises by increasing of width. In addition, the lower value of turn-on voltage appears as the more temperature increases. Finally, comparative study indicates that the proposed diode has a better performance compared to the silicon schottky diode, graphene nanoribbon homo-junction contact, and graphene-silicon schottky diode in terms of electrical parameters such as turn-on voltage and forward current.

scholarly journals A chemosensor for Al3+ ions in aqueous ethanol media: photophysical and live cell imaging studies

RSC Advances ◽  
2016 ◽  
Vol 6 (22) ◽  
pp. 17995-18001 ◽  
Author(s):  
Nabanita Chatterjee ◽  
Shubhra Bikash Maity ◽  
Asmita Samadder ◽  
Puspal Mukherjee ◽  
Anisur Rahman Khuda-Bukhsh ◽  
...  
Keyword(s):  
Metal Ions ◽  
Live Cell Imaging ◽  
Cell Imaging ◽  
Aqueous Ethanol ◽  
Live Cell ◽  
Fluorescent Chemosensor ◽  
Selective Detection ◽  
Imaging Studies ◽  
Turn On ◽  
Highly Sensitive

A new rhodamine based highly sensitive “Turn-ON” fluorescent chemosensor L for the selective detection of Al3+ ion over other biologically competing metal ions in aqueous ethanol media.

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