A5034703398- Quantum Dots Synthesis And Properties
- Chalcogenide Semiconductor Thin Films
- Ionic liquids properties and applications
- Electrochemical Analysis and Applications
- Semiconductor materials and interfaces
- ZnO doping and properties
- Nanowire Synthesis and Applications
- Gas Sensing Nanomaterials and Sensors
- Thin-Film Transistor Technologies
- Advanced Sensor and Energy Harvesting Materials
- Analytical Chemistry and Sensors
- Silicon Nanostructures and Photoluminescence
- Copper-based nanomaterials and applications
- Extraction and Separation Processes
- Conducting polymers and applications
- Silicon and Solar Cell Technologies
- Photovoltaic System Optimization Techniques
- Advanced Photocatalysis Techniques
- Nonlinear Optical Materials Research
- Advanced battery technologies research
- Transition Metal Oxide Nanomaterials
- Nanomaterials and Printing Technologies
- Perovskite Materials and Applications
- solar cell performance optimization
- Electronic and Structural Properties of Oxides
Lovely Professional University
2019-2021
Jeonbuk National University
2017
Incheon National University
2016-2017
Pandit Deendayal Petroleum University
2013-2015
Indian Institute of Technology Gandhinagar
2015
A High-performing transparent and flexible photodetector was achieved by reactive sputtering method. Vanadium pentoxide (V2O5) thin films were deposited on polyethylene terephthalate (PET) substrates at room temperature. The photodetectors with the configurations V2O5/ZnO/ITO/PET showed high-performing photoresponse a quick response time (4.9 ms) high detectivity of 1.45 × 1012 Jones, under light intensity 1 mW/m2. We demonstrated V2O5 film-based broadband which may provide promising...
An optically transparent and electrically conductive p-NiO layer was deposited on a conventional n-Si/p-Si solar cell, which improved the device performance. The transmittance reflectance properties of were found to be much better than SiNx in visible light region. Impedance spectroscopic study under varying bias illumination conditions carried out understand underlying mechanisms governing AC signal analysis revealed that acted as front surface field region for majority charge carriers. In...
In this paper, we have carefully investigated the operation of a photoelectrochemical (PEC) cell configured PbOx|Fe(CN)6(-4/-3)|Pt in accumulation, flat band, depletion, inversion and deep-depletion regions using impedance measurements. The increases photocurrent for different differ their nature: logarithmic increase depletion region, linear region along with dark current an exponential photo- region. All these variations are studied detail to correlate observations charge transfer...
A simple and cost effective method to fabricate nearly ideal Schottky diode out of p-CdTe semiconductor is discussed. The efficient re-use ionic liquid for the deposition nano-microstructures CdTe also disclosed. I–V characteristic configured as Cu:FTO:p-CdTe:Cu showed rectifying nature with a small forward voltage (0.8 V) rectification ratio 6 × 103 at 4.8 V. Theoretical model suggests diffusion controlled carrier transport process an ideality factor 1.1 up range whereas thermionic...
Ionic liquid based electrolytes are gaining great interest in the field of photoenergy conversion. We have found that ionic liquids namely BMIm Cl, PF6 and Tf2N inherently offer redox activity. The device performance photoelectrochemical (PEC) cells configuration PbOx (0.25 cm2)|blank liquids|platinum (2 cm2) was analyzed detail to get insights into working principle such systems. It partially reversible ion pairs diminish as power generating devices. partial activity confirmed by a number...
An intensive electrochemical impedance study was carried out to understand the charge-transfer processes in photoelectrochemical (PEC) cells based on ionic liquid (IL) electrolytes. Three different electrolytes were utilized role of redox species as well medium mechanism. The negligible diffusion resistance, despite presence two case Fe(CN)(6) (-4/-3) IL, explained basis charge transfer between couples. Accordingly, are not required travel through bulk electrolyte for removal accumulated...
Growth and manipulation of CdTe nanostructures from ionic liquid medium at a lower temperature 80 °C is discussed.
Since the beginning of era third generation solar cells, researchers are motivated to explore various semiconductor-metal configurations for efficient energy conversion. We first time report use non-stoichiometric PbO<sub>x</sub> electrodes in Schottky junction cell. This metal oxide makes an with high work function alloy Au-Pd. It was found that thin films anodized lead prepared via potential pulse technique result nanowall assemblies. When a few nanometer layer Au-Pd sputtered on these...
The passive frequency Filters are mainly made up of ceramics or piezoelectric materials that used in receivers, mixers and radio transmitters. Very limited studies have been done to obtain filters by a simple configuration R-C elements which the basis these devices. In this study, 2 component were realized using Schottky junction between FTO CdTe nanostructured thin film. films directly deposited on substrate via electrodeposition from ionic liquid medium. A Cu : was utilized attenuate...
One dimensional superstructures are of great interest in the field optics, opto-electronics and photonics. Over a period time, researchers have developed various new low cost techniques to prepare nanostructures metals as well semiconductors. We found that ionic liquid can be used synthesis nanostructured film directly on substrate by means electrodeposition. It was spindle like CdTe superstructure assemblies over commercial F:SnO<sub>2</sub> gives Schottky junction, resulting highest...
The 2D nanostructures are gaining lot of interest in the field electronics and solar photovoltaics. We have recently developed new shape architecture CdTe on low cost F:SnO 2 (FTO) substrate by electrodeposition from ionic liquid (IL) medium. initial results Schottky p-n junction cells out nanostructured thin films shown this paper. With such higher V oc 790 mV was obtained. On other hand, it found that stoichiometric can only be deposited less than 50 nm thick film CdS. first ever...
The 2D nanostructures are gaining lot of interest in the field electronics and solar photovoltaics. We have recently developed new shape architecture CdTe on low cost F:SnO 2 (FTO) substrate by electrodeposition from ionic liquid medium. It was observed that medium facilitate fabrication nanostructured thin film directly substrate. By using two different substrates, FTO CdS coated it possible to fabricate Schottky p-n junction cells out films. interesting observe such films result higher V...
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In this data in brief (DIB) article, major photodetector (PD) characteristics of anisotype (Ag/n-TiO2/p-Si/Al), isotype (Ag/n-TiO2/n-Si/Ag) and M-S-M type (Ag/p-Si/Al) structures under reverse bias conditions (-1 to -5 V) over a broad spectral region (300-800 nm) have been presented. Critical figures merit like current-voltage (IV), responsivity (R), detectivity (D), gain, sensitivity (S), linear dynamic range (LDR), normalized photo dark current ratio (NPDR) noise equivalent power (NEP)...