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Visible-Light Self-Powered Photodetector with High Sensitivity Based on the Type-II Heterostructure of CdPSe3/MoS2
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2024-06-11 , DOI: 10.1021/acsami.4c01183 Juanjuan Yang 1 , Jiaming Song 1, 2, 3 , Xin Zhao 4 , Linghao Zong 1 , Shuxian Wang 1 , Bingda Li 1 , Yuting Li 1 , Guoshuai Ban 1 , Zhuo Wang 1 , Zijuan Ma 1 , Peng Hu 1 , Feng Teng 1
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2024-06-11 , DOI: 10.1021/acsami.4c01183 Juanjuan Yang 1 , Jiaming Song 1, 2, 3 , Xin Zhao 4 , Linghao Zong 1 , Shuxian Wang 1 , Bingda Li 1 , Yuting Li 1 , Guoshuai Ban 1 , Zhuo Wang 1 , Zijuan Ma 1 , Peng Hu 1 , Feng Teng 1
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Transition metal thiophosphates (MTPs) are a group of emerging van der Waals materials with widely tunable band gaps. In the MTP family, CdPSe3 is demonstrated to possess a wide energy band gap and high carrier mobility, making it a potential candidate in optoelectronic applications. Here, we reported photoelectric response behaviors of both CdPSe3- and CdPSe3/MoS2-based photodetectors (noted as CPS and CM, respectively); these showed prominent photoelectric performances, and the latter proved to be significantly superior to the former. These devices exhibited ultralow dark current at a magnitude order of 10–12 A and fine cycle and air stabilities. Compared with CPS, CM demonstrated the highest responsivity (91.12 mA/W) and detectivity (1.74 × 1011 Jones) at 5 V under 425 nm light illumination. Besides, CM showed self-powered photoelectric responses at zero bias, which was attributed to the improved separation efficiency of photogenerated carriers by the built-in electric field at the interface of the p–n junction. This work proves a prospect for the CM device in portable, self-powered optoelectronic device applications.
中文翻译：
基于CdPSe3/MoS2 II型异质结构的高灵敏度可见光自供电光电探测器
过渡金属硫代磷酸盐（MTP）是一组新兴的范德华材料，具有广泛可调的带隙。在MTP系列中，CdPSe 3被证明具有宽能带隙和高载流子迁移率，使其成为光电应用的潜在候选者。在这里，我们报告了基于 CdPSe 3和基于 CdPSe 3 /MoS 2的光电探测器（分别记为 CPS 和 CM）的光电响应行为；这些显示出突出的光电性能，并且后者被证明明显优于前者。这些器件表现出 10 –12 A 数量级的超低暗电流以及良好的循环和空气稳定性。与 CPS 相比，CM 在 5 V、425 nm 光照射下表现出最高的响应度 (91.12 mA/W) 和探测度 (1.74 × 10 11 Jones)。此外，CM在零偏压下表现出自供电光电响应，这归因于p-n结界面处的内置电场提高了光生载流子的分离效率。这项工作证明了 CM 器件在便携式自供电光电器件应用中的前景。
更新日期：2024-06-11
中文翻译：
基于CdPSe3/MoS2 II型异质结构的高灵敏度可见光自供电光电探测器
过渡金属硫代磷酸盐（MTP）是一组新兴的范德华材料，具有广泛可调的带隙。在MTP系列中，CdPSe 3被证明具有宽能带隙和高载流子迁移率，使其成为光电应用的潜在候选者。在这里，我们报告了基于 CdPSe 3和基于 CdPSe 3 /MoS 2的光电探测器（分别记为 CPS 和 CM）的光电响应行为；这些显示出突出的光电性能，并且后者被证明明显优于前者。这些器件表现出 10 –12 A 数量级的超低暗电流以及良好的循环和空气稳定性。与 CPS 相比，CM 在 5 V、425 nm 光照射下表现出最高的响应度 (91.12 mA/W) 和探测度 (1.74 × 10 11 Jones)。此外，CM在零偏压下表现出自供电光电响应，这归因于p-n结界面处的内置电场提高了光生载流子的分离效率。这项工作证明了 CM 器件在便携式自供电光电器件应用中的前景。
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