Luminescent object comprising aligned polymers having a specific pretilt angle

A photovoltaic device comprising:

• an electromagnetic radiation collection medium containing a luminescent object comprising:
• a luminescent layer;
• and
• a waveguide, wherein the object is an optical laminate or an optical fiber coupled optically to the waveguide and comprises an aligned polymer comprising mesogenic groups, wherein the aligned polymer contains an oriented photoluminescent material comprising oriented photoluminescent molecules immobilized within the aligned polymer with a pretilt angle of 10-90° relative to the surface of the object, wherein the oriented photoluminescent molecules are aligned in essentially a same direction as the mesogenic groups of the aligned polymer;
• and
• a photovoltaic cell capable of converting optical radiation to electrical energy which is optically coupled to the luminescent object.

A method of concentrating incident optical radiation comprising:

• administering of a luminescent object comprising:
• a luminescent layer;
• and
• a waveguide, wherein the object is an optical laminate or an optical fiber coupled optically to the waveguide and comprises an aligned polymer comprising mesogenic groups, wherein the aligned polymer contains an oriented photoluminescent material comprising oriented photoluminescent molecules immobilized within the aligned polymer with a pretilt angle of 10-90° relative to the surface of the object, wherein the oriented photoluminescent molecules are aligned in essentially a same direction as the mesogenic groups of the aligned polymer.