Abstract: An evaluation apparatus is taught to nondestructively characterize the electroluminescence behavior of the semiconductor-based or organic small-molecule or polymer-based light-emitting material as the finished light-emitting device functions through electroluminescence. An electrode probe is used to temporarily form a light-emitting device through forming an intimate electrical contact to the surface of the light emitting material. A testing system is provided for applying an electrical stimulus to the electrode probe and temporarily formed device and for measuring the electrical and optical/electroluminescence response to the electrical stimulus. The electrical and optical properties of the light-emitting material can be nondestructively determined from the measured response.

Abstract: An evaluation apparatus is taught to nondestructively characterize the electroluminescence behavior of the semiconductor-based or organic small-molecule or polymer-based light-emitting material as the finished light-emitting device functions through electroluminescence. An electrode probe is used to temporarily form a light-emitting device through forming an intimate electrical contact to the surface of the light emitting material. A testing system is provided for applying an electrical stimulus to the electrode probe and temporarily formed device and for measuring the electrical and optical/electroluminescence response to the electrical stimulus. The electrical and optical properties of the light-emitting material can be nondestructively determined from the measured response.

Abstract: An evaluation apparatus is taught to nondestructively characterize the material that can be any type of any semiconductor or dielectric materials, or a coating or film deposit on the semiconductor wafer. An electrode probe is used to temporarily form a Schottky or metal oxide semiconductor (MOS) device through forming an intimate electrical contact to the surface of the material. A testing system is provided for applying an electrical stimulus to the temporarily formed device through the electrode probe, and for measuring the response to the electrical stimulus. Various properties of the material can be nondestructively determined from the measured response.