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CHEMICAL PHYSICS LETTERS · 2016 · IF 1.86

Improvement of morphology and performance of P3HT/ZnO hybrid solar cells induced by liquid crystal molecules

Zhenrong Jia,Ying Wei,Xiaofeng Wang,Siwei Hu,Kai Yao,Fan Li

Herein, the liquid crystal molecule, 3,6-bis(5-(4-hexyl-phenyl)-2-thienyl)-2,5-bis(2-ethylhexyl)-2,5-dihydropyrrolo[3,4-c]pyrrole-1,4-dione (DPP-TP6), is introduced into P3HT/ZnO to control the morphology of the hybrid system. Induced by the self-assembly behavior of DPP-TP6 upon thermal treatment at the mesomorphase temperature, the dispersion of ZnO nanocrystals is effectively improved and the crystallinity and ordering of the P3HT is also enhanced, which provides more interfacial area for exciton dissociation and efficient path for carrier transport. On such basis, the power conversion efficiency of P3HT/ZnO hybrid solar cells is improved mainly due to the increase of J sc .

CAS / MDL: 5970-45-6 584-08-7 1310-58-3

研究领域: 材料科学 · 光伏技术 · 纳米技术

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SENSORS · 2026 ·Vol. 26 ·期 9 ·2725 · IF 4

High-Performance Self-Powered Photodetector Based on Silver Triangular Nanoplate-Modified P3HT/ZnO Heterojunctions

Jun Zhou,Qian Qiao,Sijie Chen,Xuan Yu,Xiaoming Yu,Cao Li,Jian Zheng,Cunxi Zhang,Rui Wang

Self-powered photodetectors have attracted widespread attention in Internet of Things applications due to their low power consumption and high sensitivity. In this study, plasmonic self-powered poly(3-hexylthiophene)/zinc oxide (P3HT/ZnO) heterojunction photodetectors incorporating silver triangular nanoplates (AgTNPs) were fabricated using sol–gel and spin-coating techniques. The experimental results demonstrate that the incorporation of AgTNP nanostructures significantly enhances the photoelectric conversion efficiency of the plasmonic P3HT/AgTNPs/ZnO photodetectors across both the ultraviolet and visible spectral regions. The responsivity enhancement ratio of the plasmonic devices reached its maximum under illumination at a wavelength of 525 nm. Compared with the reference P3HT/ZnO device, the responsivity values of the P3HT/AgTNPs-1/ZnO and P3HT/AgTNPs-2/ZnO devices increased by factors of 3.24 and 4.21, respectively. The optimal P3HT/AgTNPs-2/ZnO device exhibited responsivity values of 9.49, 10.80, and 10.47 mA/W under irradiation at wavelengths of 440 nm, 460 nm, and 525 nm, respectively. The mechanism of performance enhancement induced by the plasmonic AgTNPs is also discussed. This work demonstrates that embedding triangular plasmonic metal nanoplates within semiconductor heterojunctions constitutes an effective strategy for performance enhancement, providing new insights for the rational design of high-performance optoelectronic devices. Keywords: photodetector; ZnO; silver triangular nanoplate; P3HT

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Improvement of morphology and performance of P3HT/ZnO hybrid solar cells induced by liquid crystal molecules

High-Performance Self-Powered Photodetector Based on Silver Triangular Nanoplate-Modified P3HT/ZnO Heterojunctions