A STUDY OF THE PHOTOVOLTAGE PROPERTIES OF NANOCRYSTALLINE LIFE5O8

We have researched nanocrystalline LiFe5O8 during reflection absorptio n, surface photovoltage and surface photovoltage (SPS) by changing ele ctric field (FMSPS). It is shown that the samples have bands of charge transfer transitions and crystal field transition. It is shown obviou s quantum size effect that the absorbent intensity increased with decr easing particle size. The nanocrystal has P-type photovoltage property . The two peaks are served in 610 and 680 nm in particle size of less than 30 nm. For the first time, we researched the charge transfer tran sition bands in FMSPS. It is shown that the bands consisted of two tra nsitions of different properties. The photovoltage process is also exp lained.