In organic diodes, usually a high work function transparent metal is used as anode (pa) for hole injection and a low work function metal as cathode (pc) for electron injection. at the metal-organic- metal contact, a non-negligible built-in potential vbi pbi/q is present across the organic layer. neglecting energy level shifts due to the interface dipoles, the built-in voltage is equal to: фа- фс фа + фс 0 2фс

Ablock of steel has a density of 0.29lbs per cubic inch. if the block has dimensions of 1 inch by 1 inch by 3 inches, what is its weight? a. 0.29lbs b. 0.58lbs c. 0.87lbs d. 1lbs

Ametal ring 4.20 cm in diameter is placed between the north and south poles of large magnets with the plane of its area perpendicular to the magnetic field. these magnets produce an initial uniform field of 1.12 t between them but are gradually pulled apart, causing this field to remain uniform but decrease steadily at 0.240 t/s . (a) what is the magnitude of the electric field induced in the ring? (b) in which direction (clockwise or counterclockwise) does the current flow as viewed by someone on the south pole of the magnet?

How does the entropy of steam compare to the entropy of ice?