carrier separation造句

• A strong built-in electric field covering the whole SWCNT channel is formed for high-efficiency carrier separation.
• In thick solar cells there is very little electric field in the active region outside the space charge zone, so the dominant mode of charge carrier separation is diffusion.
• If the signals are close but not exactly on the same frequency the mix will not only include the audio from both carriers but depending on the carrier separation an audible tone ( a beat signal ) may be heard at a frequency equal to the difference in the carrier frequencies involved.
• Challenges of CNT for the photoactive layer include its lack of capability to form a p-n junction, due to the difficulty of doping certain segments of a CNT . ( A p-n junction creates an internal built-in potential, providing a pathway for efficient carrier separation within the photovoltaic . ) To overcome this difficulty, energy band bending has been done by the use of two electrodes of different work functions.