METHOD FOR MODIFYING SURFACE OF LITHIUM NIOBATE PLATE

摘要

PURPOSE: A surface modification method of lithium niobate substrate is provided to increase bonding strength of an organic thin film with lithium niobate substrate through a mixed process of drying and wet surface process. CONSTITUTION: A surface modification method of lithium niobate substrate comprises the following step: activating lithium niobate substrate surface by mix processing dry surface process and wet surface process. The dry surface processing irradiates one of the following: ultraviolet ray (UV), ozone (O3), ultraviolet ray/ozone (UV/O3) and plasma. The wet surface processing dips the lithium niobate substrate which has activated crystal surface into a surface modifying solution which can form a self assembled monolayer(SAM). The surface modifying solution includes a compound which introduces functional group through fixation on the lithium niobate substrate.