Journal
MATERIALS LETTERS
Volume 315, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.matlet.2022.132005
Keywords
CuO array; Electrical properties; Bulk heterojunction; Photoconductivity; Nanocomposites
Funding
- National Natural Science Founda-tion of China [62004068, 21607041, 12147219]
- Zhejiang Provincial Natural Science Foundation of China [Y20F040001]
- Natural Science Foundation of Huzhou City, China [2019YZ02]
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An inorganic-organic hybrid bulk heterojunction (BHJ) consisting of a CuO nanocone array (NCA)/methyl [6,6]-phenyl-C-61-butyrate (PC61BM) was fabricated and showed enhanced photocurrent response and better photogenerated charge transfer properties.
An inorganic-organic hybrid bulk heterojunction (BHJ) consisting of a CuO nanocone array (NCA)/methyl [6,6]-phenyl-C-61-butyrate (PC61BM) was fabricated on a fluorine-doped tin oxide substrate using a hydrothermal method. Scanning electron microscopy showed that the CuO-NCA/PC61BM BHJ hybrid structure was wellformed and that the PC61BM compactly filled the interspaces between the CuO nanocones. A FTO/CuO-NCA/PC61BM/LiF/Ag hybrid BHJ photodiode had a favorable type-II band alignment for charge separation, and this photodiode showed a nearly 10-fold enhanced photocurrent response compared with a FTO/CuO-NCA/LiF/Ag Schottky junction photodiode. Photoelectmchemical impedance spectroscopy and transient absorption spectroscopy demonstrated that the FTO/CuO-NCA/PC61BM/LiF/Ag BHJ device had better photogenerated charge transfer properties and a longer carrier lifetime compared with the FTO/CuO-NCA/LiF/Ag device.
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