Provided is a quantum dot surface ligand exchange method. The method comprises the steps: pre-treating proton-containing ligands using a deprotonating agent to obtain deprotonated ligands; mixing a pre-prepared quantum dot solution having original ligands with the deprotonated ligands, after stirring for a predetermined amount of time at room temperature, a ligand exchange reaction occurring, and after washing, obtaining a quantum dot having the deprotonated ligands on the surface. The quantum dot ligand exchange method has a high reaction rate and is easy to operate; after the ligand exchange, the deprotonated ligands firmly bind to cations on the surface of the quantum dot, and after the ligand exchange, the quantum dot provides a stable colloidal solution, and has good solubility and high luminous efficiency.
本发明提供了一种量子点表面
配体交换方法。该方法包括以下步骤:使用去质子剂对含质子
配体进行预处理,得到去质子化
配体;将预先制备的具有原始
配体的量子点溶液与去质子化
配体混合,在室温下搅拌预定时间后,发生
配体交换反应,经洗涤后得到表面具有去质子化
配体的量子点。该量子点
配体交换法反应速率高,操作简便;
配体交换后,去质子化
配体与量子点表面的阳离子牢固结合,
配体交换后的量子点提供稳定的胶体溶液,溶解性好,发光效率高。