通过环保途径从废旧铅酸电池中制备出的PbS量子点图像传感器

工程（英文） ›› 2025, Vol. 53 ›› Issue (10) : 214 -222. DOI: 10.1016/j.eng.2024.11.003

研究论文

Yuxin Tong ^a^,^b^,^# ,
Dijie Zhang ^c ,
Zhaoyang Li ^a^,^b^,^# ,
Guang Hu ^a^,^b ,
Qingfang Zou ^a^,^b ,
Luna Xiao ^c ,
Weidong Wu ^c ,
Liang Huang ^a^,^b ,
Sha Liang ^a^,^b ,
Huabo Duan ^a^,^b ,
Jingping Hu ^a^,^b ,
Huijie Hou ^a^,^b ,
Jianbing Zhang ^c^,^* ,
Jiakuan Yang ^a^,^b^,^d^,^*

作者信息 +

PbS Quantum Dot Image Sensors Derived from Spent Lead-Acid Batteries via an Environmentally Friendly Route

Yuxin Tong ^a^,^b^,^# ,
Dijie Zhang ^c ,
Zhaoyang Li ^a^,^b^,^# ,
Guang Hu ^a^,^b ,
Qingfang Zou ^a^,^b ,
Luna Xiao ^c ,
Weidong Wu ^c ,
Liang Huang ^a^,^b ,
Sha Liang ^a^,^b ,
Huabo Duan ^a^,^b ,
Jingping Hu ^a^,^b ,
Huijie Hou ^a^,^b ,
Jianbing Zhang ^c^,^* ,
Jiakuan Yang ^a^,^b^,^d^,^*

Author information +

文章历史 +

Received	Accepted	Published
2024-05-11	2024-11-04
Issue Date
2024-11-14

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Abstract

PbS quantum dot (QD) image sensors have emerged as promising chips for a wide range of infrared (IR) imaging applications due to their monolithic integration with silicon-based readout integrated circuits. However, avoiding primary toxic Pb usage and reducing the cost of PbS QDs remains crucial for widespread application. We present a novel cost-effective and environmentally friendly hydrometallurgical process for recovering PbCl₂ from spent lead-acid battery paste to synthesize high-quality PbS QDs. The method recovers PbCl₂ with a production ratio of 97% and a purity of 99.99%. PbS QDs and photodetectors synthesized from recycled PbCl₂ (R-PbCl₂) have comparable performance and quality to those made using commercial PbCl₂. R-PbCl₂-derived photodetectors exhibit a high external quantum efficiency of 49.6% and a high specific detectivity of 6.95 × 10¹² Jones compared to published studies. Additionally, based on R-PbCl₂, a PbS QD image sensor with 640 × 512 resolution successfully discriminated common solvents. Moreover, through life-cycle assessment and economic cost analysis, this novel synthesis route offers great advantages in the environmentally friendly use of chemical reagents and reduces the production cost of PbS QDs by 23.2% compared to commercial PbCl₂. Thus, this work not only contributes to the green recycling of spent lead paste but also provides a low-cost strategy for synthesizing PbS QDs and their optoelectronic application.

关键词

Key words

PbS QDs / Photodetector / Infrared solar cells / Spent lead paste / Life cycle assessment

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Yuxin Tong,Dijie Zhang,Zhaoyang Li,Guang Hu,Qingfang Zou,Luna Xiao,Weidong Wu,Liang Huang,Sha Liang,Huabo Duan,Jingping Hu,Huijie Hou,Jianbing Zhang,Jiakuan Yang. 通过环保途径从废旧铅酸电池中制备出的PbS量子点图像传感器[J]. 工程（英文）, 2025, 53(10): 214-222 DOI:10.1016/j.eng.2024.11.003