Xi-sheng ZHANG, Chun-yu YAN, Ti-hui WU, Lin-feng LI, Jun-hua GUO, Chen-zhong YAO. Fabrication of CsPbBrI2 Quantum Dots and Its Photodetector Performance[J]. Acta Photonica Sinica, 2020, 49(1): 0123002
- Acta Photonica Sinica
- Vol. 49, Issue 1, 0123002 (2020)
Fig. 1. 185℃合成的CsPbBrI2量子点墨汁和粉末照片, X衍射图, 透射电子显微镜图Photograph of CsPbBrI2 quantum dot inks and powder sample, XRD pattern, TEM imags
Fig. 2. 160℃, 170℃和185℃温度下合成所得CsPbBrI2量子点的紫外-可见吸收光谱, 荧光光谱图和荧光寿命Absorption spectrum, normalized fluorescence emission and decay curves of CsPbBrI2 QDs synthesized at 160℃, 170℃ and 185℃
Fig. 3. 光探测器的结构, CsPbBrI2量子点薄膜截面和表面形貌Schematic structure of photodetector, cross-sectional and surface SEM image of CsPbBrI2 QD film
Fig. 4. CsPbBrI2量子点薄膜探测器的光响应性能Performances of PD in dark and under illumination
Fig. 5. 存储60天后CsPbBrI2量子点薄膜吸收谱及探测器的周期循环开关性能Absorption spectrum of CsPbBrI2 QD film and on-off cycling tests of PDs stored over the course of 60 days
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Table 1. Fluorescence lifetime fitting parameters of CsPbBrI2 quantum dots sythesized at different temperatures
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Table 2. Performance comparison of perovskite photodetectors
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