中国光学（中英文）2024，Vol.17Issue(5)：1236-1243,8.DOI:10.37188/CO.2024-0018
基于PbS量子点光电探测器的脉搏检测系统研究
Research on pulse detection system based on PbS quantum dot photodetector
摘要
Abstract
As the pulse contains rich blood flow information of the human body,detecting the pulse and de-ducing the health status of human cardiovascular system are becoming a hot spot.In this study,PbS quantum dots with a size of 3 nm were synthesized using the hot injection method,and a PbS quantum dot photode-tector was constructed on the surface of gold forked finger electrode through spin coating.Based on the pre-pared PbS quantum dot photodetector,a data visualization pulse detection system was developed.Using the optoelectronic capacitance pulse wave recording method,the same tester was measured under different exer-cise states and different testers were measured under the same exercise state.The measured data was dis-played on the electronic display screen through circuit processing.The results show that under the illumina-tion of 15.2 μW·cm-2 light intensity,its responsivity(R)and light detection rate(D*)are 0.33 A/W and 1.33×1012 Jones under-3 V bias voltage,respectively.When used in a pulse measurement circuit,the system can effectively receive and measure the human pulse signal.It can be concluded that the pulse detection sys-tem based on the PbS quantum dot photodetector meets the application requirements regarding sensitivity,stability,and reliability.关键词
硫化铅量子点/光电探测器/光电容积脉搏波描记法/脉搏波测量Key words
PbS QDs/photoelectric detector/photoplethysmography/pulse detection sensor分类
信息技术与安全科学引用本文复制引用
李力,耿会娟,张天昊,朱建平..基于PbS量子点光电探测器的脉搏检测系统研究[J].中国光学（中英文）,2024,17(5):1236-1243,8.基金项目
上海市自然科学基金(No.19ZR1426900) （No.19ZR1426900）
上海交通大学深蓝计划(No.SL2020MS001) （No.SL2020MS001）
河南省科技攻关项目(No.242102240050) Supported by the Shanghai Natural Science Foundation(No.19ZR1426900) （No.242102240050）
Shanghai Jiao Tong University Deep Blue Program(No.SL2020MS001) （No.SL2020MS001）
Henan Province Science and Technology Research Project(No.2421022 40050) （No.2421022 40050）
