✔ Highly porous nanostructures having large specific surface areas are very desirable for electrochemical supercapacitors to achieve a large energy storage capacity.

✔ We found that porous Co-doped TiO₂ has large specific surface area.

✔ The CV curves of the porous 7% Co-doped TiO₂ nanostructures-based electrodes acquired at various scan rates in the range of 5-100mVs^-1 at potentials ranging from 0 to 0.5V.

✔ The GCD curves of all the porous 7% Co-doped TiO₂ nanostructures-based electrodes obtained in the 3.0M KOH aqueous electrolyte at five different current densities of 0.5, 1, 2, 3 and 5 Ag^-1.

✔ The specific capacitance of the undoped, 1, 3, 5, 7 and 9% Co-doped TiO₂ electrodes were calculated to be 93.2, 151.6, 198.1, 223.5, 352 and 246.9 Fg^-1 at a current density of 0.5 Ag^-1, respectively.

✔ Mechanical energy harvesting through piezoelectricity and triboelectricity.
✔ Self-powered technology, Nanogenerators integrated with supercapacitors.
✔ Wearable textile based devices.
✔ Hybridization of Nanogenerators for harvesting multi-type energies.
✔ A rectification-free flexible self-charged power cell.
✔ ZnO nanoflakes as a novel piezoelectric material.
✔ Solid state supercapacitor-based mechanically stable integrated device.
✔ Piezoelectric / Ferroelectric Materials Synthesis and Characterization.

✔ A rectification-free flexible self-charged power cell.
✔ ZnO nanoflakes as a novel piezoelectric material.
✔ Solid state supercapacitor-based mechanically stable integrated device.
✔ Piezoelectric / Ferroelectric Materials Synthesis and Characterization.

✔ To power up smart electronics.
✔ A step for the development of effective power source for sensor networks.
✔ Flexible self-charged devcies to harvest human mechanical motions.
✔ To achieve good mechanical stability and storage properties using graphene and MnO₂ nanowires.
✔ To enhance the Beta phase in PVDF for better piezoelectricity.
✔ To achieve the higher output performance using 10nm thin ZnO nanoflakes.

✔ Piezoelectric response of piezoelectric films.

✔ Analysis and comparison of peizoelectricity in PVDF, PVDF-rGO, PVDF-ZnO and PVDF-rGO-ZnO films.

✔ Maximum Output voltage, Output current and power density of 44V, 1000nA and 193.6μW/cm² was obtained from our devices, respectively.

✔ Good storage properties.

✔ Better mechanical stability of graphene based solid-state supercapacitor.

✔ Self-charging behavior of integrated and non-integrated device.

✔ Wearable devices have good compatibility with different human body parts.
✔ Textile based flexible devices can work under wide range of frequencies of available mechanical motions.
✔ Cheap, biocompatible, flexible and easily deformable devices can be made using lightweight textile based materials.
✔ Development of self-charged devices by integrating energy conversion and storage processes is a key step for the commercialization of nanogenerators.

✔ Harvesting ambient energy can change the world to do not need to charge the battery

✔ The device which is embedded nanogenerator can be working without charge

✔ Flexible nanogenerator can realize the device that do not need external power source.

✔ Flexible Nanogenerator -Te nanoflake / PDMS /Gold coating textile Piezoelectric nanogenerator

✔ Triboelectric & Piezoelectric hybrid Nanogenerator – Au / PDMS / ZnO nanoflake nanogenerator

✔ Generation & storege hybrid Nanogenerator – PVDF-rGO-ZnO / MnO₂-rGO nanogenerator

✔ To realize high output voltage, current, power for self charged nanogenerator

✔ To realize high flexible nanogenerator based on textile substrate for wearable device

✔ To realize generation , storage hybrid nanogenerator for embedded device

✔ To research flexible nanogenerator can stop our environmental issues

✔ To research flexible nanogenerator can stop our social issue about tax

✔ To research flexible nanogenerator can emerge self charged wearble devices

✔ To research flexible nanogenerator can emerge nanorobot which is harvesting of ambient energy