Now" will also air internationally on BET International, CNN International, National Geographic, and MTV Networks International, which is available in 640 million homes worldwide. "Hope for Haiti Now" will be the first U.S.-based telethon airing on MTV in China. Facebook and Twitter have signed on as official social media partners to help drive donations and tune-in to the telethon.

Based on production needs and venue sizes, all "Hope for Haiti Now" studio locations will be closed to the media. Photos, pool video footage and talent interviews from "Hope for Haiti Now" will be serviced to news outlets immediately following the event.

"Hope for Haiti Now" is produced by Joel Gallen and Tenth Planet Productions, in collaboration with Viacom's MTV Networks and George Clooney.expressed as the following equation.
xcex7(emission)=xcex7(injection)xc3x97xcex7(re-coupling)xc3x97xcex7(excitation)xc3x97xcex7(quantum)
Here in this equation, xcex7 (injection) denotes the efficiency when the carrier is injected from the electrode, xcex7 (re-coupling) denotes the re-coupling efficiency of the electron and the hole, xcex7 (excitation) denotes the efficiency of generating a singlet exciton due to the re-coupling, and xcex7 (quantum) denotes the efficiency of converting the singlet exciton to a photon.
The xcex7 (injection) efficiency originates in an electric potential barrier in the interface between the cathode (or the anode) and the EL material, and changes. The lower the electric potential barrier, the higher the xcex7 (injection) efficiency is. The xcex7 (re-coupling) efficiency changes due to the injection balance of the carrier (balance of the ratio of the injected electron and hole), and is influenced by the carrier transfer