Enhancement of light absorption in solar cell presents a strong challenge to its overall performance. We analyzed an Organic Solar Cell (OSC) with Photonic Crystal (PC) structure using Finite Difference Time Domain (FDTD) method. Aluminum oxide (Al2O3) has been used as photonic crystal structure and the lattice structure has been chosen to be hexagonal. Absorption enhancement has been observed by changing the height of the Hexagonal Lattice structure (HLS). When height is increased to 0.26 and radius to period ratio (r/a ratio) is set to 0.4, there is a significant increase of absorption in the middle wavelength region approximately from 463 nm to 575 nm and a significant decrease in lower wavelength. As the height is increased further, these changes in absorption begins to increase and at a certain value, these changes begin to reverse. Almost same phenomena occur when r/a ratio is 0.2 and 0.3 taken at approximately same height.

No abstract

Wireless Controlled by Voice Automation in the Home Based on Bluetooth, a project that is moving forward with cell (application) in addition to giving the workspace to the elderly and injured, so they may control household utilities. Voice interest is based on their phone. The gadget is disguised in such a manner that it will be quick to pass on, present, figure out, run, and keep up with the dark person. Wires for house automation are also utilized to interconnect the many electrical equipment that are used in a home. This work may be run with a variety of options, such as a fingerprint sensor that will lock and unlock the door, or any other security system that will be installed in a home or business. And a leakage detector will track the system, and if it detects a leak, an automated SMS will be delivered to the user through GSM.

we characterized accumulated body devices in the 100 K to 400 K range, observed the performance characteristics, and explored the ability to dynamically tune <i>V_t</i> as the temperature is changed and the temperature range these devices can reliably operate at.