In the UV-VIS absorption spectrum, the absorption peak of Q-band of PbPc &VOPc film shows an obvious red shift, while that of H2Pc &C60 and VOPc &C60 shows a blue shift.

• PbPc &VOPc复合膜的UV-VIS吸收谱发生了明显的红移； 而H_2Pc &C_(60)、VOPc &C_(60)复合膜的UV-VIS吸收谱则发生了蓝移。