P3HT∶PC<sub>61</sub>BM as Active Layer for Preparation of Inorganic/Organic Heterojunction Photodetector

Siyuan Weng; Dayong Jiang; Man Zhao

doi:10.3788/AOS202242.1304001

Acta Optica Sinica, Volume. 42, Issue 13, 1304001(2022)

P3HT∶PC₆₁BM as Active Layer for Preparation of Inorganic/Organic Heterojunction Photodetector

Siyuan Weng¹, Dayong Jiang^1,2、*, and Man Zhao¹

¹School of Materials Science and Engineering, Changchun University of Science and Technology, Changchun 130022, Jilin , China

²Engineering Research Center of Optoelectronic Functional Materials, Ministry of Education, Changchun 130022, Jilin , China

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Figures & Tables(9)

Fig. 1. Chemical structures of P3HT and PC₆₁BM

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Fig. 2. Schematic diagram of manufacturing steps for three-dimensional structure of MgZnO/Au/PEDOT∶PSS/P3HT∶PC₆₁BM binary BHJ OPD. (a) MgZnO target; (b) MgZnO thin film; (c) MgZnO/Au ultraviolet photodetector; (d) MgZnO/Au/PEDOT∶PSS ultraviolet OPD with unexposed interdigital electrode; (e) MgZnO/Au/PEDOT∶PSS/P3HT∶PC₆₁BM binary BHJ OPD with unexposed interdigital electrode; (f) MgZnO/Au/PEDOT∶PSS/P3HT∶PC₆₁BM binary BHJ OPD

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Fig. 3. XRD spectra of MgZnO/Au ultraviolet photodetector and MgZnO/Au/PEDOT∶PSS/P3HT∶PC₆₁BM binary BHJ OPD

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Fig. 4. Performance characterization of photodetector. (a) Normalized absorption spectra of MgZnO thin film and P3HT∶PC₆₁BM thin film; (b) schematic diagram for energies of materials used in MgZnO/Au/PEDOT∶PSS/P3HT∶PC₆₁BM binary BHJ OPD

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Fig. 5. I-V curves measured by photodetector in illumination and darkness. (a) MgZnO/Au ultraviolet photodetector; (b) MgZnO/Au/PEDOT∶PSS/P3HT∶PC₆₁BM binary BHJ OPD

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Fig. 6. Spectral responsivity and external quantum efficiency curves of photodetector. (a) Responsivities of MgZnO/Au ultraviolet photodetector under different bias voltages; (b) external quantum efficiencies of MgZnO/Au ultraviolet photodetector under different bias voltages; (c) responsivities of MgZnO/Au/PEDOT∶PSS/P3HT∶PC₆₁BM binary BHJ OPD under different bias voltages; (d) external quantum efficiencies of MgZnO/Au/PEDOT∶PSS/P3HT∶PC₆₁BM binary BHJ OPD under different bias voltages

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Fig. 7. Performance characterization of OPD. (a) Variation tendencies of peak responsivities and peak external quantum efficiencies of MgZnO/Au/PEDOT∶PSS/P3HT∶PC₆₁BM binary BHJ OPD under different bias voltages; (b) responsivity ratios and external quantum efficiency ratios of MgZnO peaks of two samples measured under different bias voltages; (c) D^* and L curves of MgZnO/Au ultraviolet photodetector and MgZnO/Au/PEDOT∶PSS/P3HT∶PC₆₁BM binary BHJ OPD under different bias voltages; (d) responsivity error bars of MgZnO/Au/PEDOT∶PSS/P3HT∶PC₆₁BM binary BHJ OPD after storage for over three months, illustration shows responsivities of MgZnO and P3HT∶PC₆₁BM after storage for more than one month and three months

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Fig. 8. Schematic diagram of OPD energy bands. (a) Schematic diagram for transfer process of charge carriers in MgZnO/Au/PEDOT∶PSS/P3HT∶PC₆₁BM binary BHJ OPD under darkness; (b) schematic diagram of transfer process of charge carriers in MgZnO/Au/PEDOT∶PSS/P3HT∶PC₆₁BM binary BHJ OPD under illumination

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Table 1. Electricity performance, D^* and L of two photodetectors under darkness and illumination
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Table 1. Electricity performance, D^* and L of two photodetectors under darkness and illumination
Structure I_light /A I_dark /A I_light/I_dark L /dB D^* /J
MgZnO/Au 1.08×10^-6 7.11×10^-9 1.52×10² 43.6 1.08×10¹¹
MgZnO/Au/PEDOT∶PSS/
P3HT∶PC₆₁BM
3.74×10^-5 6.94×10^-9 6.51×10³ 76.3 4.39×10¹¹

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Siyuan Weng, Dayong Jiang, Man Zhao. P3HT∶PC₆₁BM as Active Layer for Preparation of Inorganic/Organic Heterojunction Photodetector[J]. Acta Optica Sinica, 2022, 42(13): 1304001

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Paper Information

Category: Detectors

Received: Oct. 8, 2021

Accepted: Jan. 10, 2022

Published Online: Jul. 15, 2022

The Author Email: Jiang Dayong (dayongjiangcust@126.com)

DOI:10.3788/AOS202242.1304001

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Electricity performance, D* and L of two photodetectors under darkness and illumination

Table 1. Electricity performance, D* and L of two photodetectors under darkness and illumination

Table 1. Electricity performance, D^* and L of two photodetectors under darkness and illumination

Table 1. Electricity performance, D^* and L of two photodetectors under darkness and illumination