Our 10 ships all offer something a little different, but the one thing they all have in common is they're built to make your vacation everything you wanted-and then some.It's no wonder that Celebrity cruises are consistently ranked the best in the world.ur 10 ships all offer something a little different, but the one thing they all have in common is they're built to make your vacation everything you wanted-and then some.
photovoltaic cell (PV Cell) A photovoltaic cell (PV cell) is a specialized semiconductor diode that converts visible light into direct current (DC). Some PV cells can also convert infrared (IR) or ultraviolet (UV) radiation into DC electricity.
(Photovoltaic literally means âlightâ and âelectric.â) These cells are made from materials which exhibit the âphotovoltaic effectâ i.e. when sunshine hits the PV cell, the photons of light excite the electrons in the cell and cause them to flow, generating electricity.