Ferroelectric circularly polarized photovoltaic effect driven circularly polarized light detector and preparation method thereof

• Main Authors: WU FAFA, LUO JUNHUA, LIU XITAO, LI XIAOQI
• Format: Patent
• Language: Chinese; English
• Published: 11.02.2022
• Subjects: COLORIMETRY; MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT; MEASURING; PHYSICS; RADIATION PYROMETRY; TESTING

The invention relates to a ferroelectric circularly polarized photovoltaic effect driven circularly polarized light detector and a preparation method thereof. The detector comprises an insulating substrate layer, a halide perovskite ferroelectric single crystal wafer layer which is arranged on one side surface of the insulating substrate layer and has optical activity, and a metal electrode group which is plated on the free surface of the single crystal wafer. According to the ferroelectric circularly polarized photovoltaic effect driven circularly polarized light detector, bias voltage does not need to be added, light current changing along with the polarization angle can be generated under excitation of circularly polarized light, self-driven circularly polarized photoelectric detection can be achieved, the structure is simple, and the cost is low. 本发明涉及一种铁电体圆偏振光伏效应驱动圆偏振光探测器及制备方法，该探测器包括绝缘基底层，在所述的绝缘基底层的一侧面上设置具有旋光活性的卤化物钙钛矿铁电体单晶片层以及镀制在所述单晶片自由面的一组金属电极组。本发明的铁电体圆偏振光伏效应驱动圆偏振光探测器无需外加偏压，在圆偏振光的激发下即可产生随偏振角度变化的光电流，因此它能