APPLIED SURFACE SCIENCE
·
2018
·
IF 4.439
Zhenglong Yang,Kangyu Fu,Jing Yu,Xujing Shi,Peiting Zhou,Zhihao Cheng
Polylactide-b-fullerene-b-poly(3-hexylthiophene) (PLA- b -C 60 - b -P3HT) triblock copolymer via a combination of 1,3-dipolar cycloaddition reaction and controlled ring-opening polymerization technique was successfully synthesized. The structure, morphology and crystallinity of PLA- b -C 60 - b -P3HT copolymer were characterized by 1 H NMR, GPC, DSC, TGA, XRD, UV–vis, PL and AFM measurements. Nanoporous C 60 /P3HT films were easily prepared from PLA- b -C 60 - b -P3HT triblock copolymer by casting the copolymer followed by thermal annealing and chemical etching of the PLA chains. Fullerene molecules could self-assembly between P3HT and PLA to form a continuous film. An ordered nanoporous C 60 /P3HT film was formed in AFM by chemically etching the PLA microphase with NaOH solution. Photoluminescence analysis showed that the photoinduced electron transfer of the ordered nanoporous C 60 /P3HT film was significantly improved compared to the physically blending sample due to the increased interface between the P3HT and the C 60 .
研究领域:
材料科学
·
有机光电材料
✓ 已验证
产品关联
DOI
高影响因子
RSC Advances
·
2016
·Vol. 6
·期 66
·61934-61943
·
IF 3.289
Jikang Liu,Xiaoguang Zhu,Junli Li,Jiulin Shen,Guoli Tu
A diblock amphipathic copolymer P3HT–PEO was rationally designed and easily synthesized. By introducing P3HT–PEO into P3HT/PCBM blends, the intramolecular interaction between the P3HT–PEO and the donor/acceptor (D/A) molecule in the blends could make the P3HT–PEO located at P3HT/PCBM domains' interface, which could stabilize the morphology of the bulk-heterojunction and also suppress the acceptor PCBM from severe aggregations under prolonged annealing time. By doping only 5 wt% P3HT–PEO, the device-5 (with 5 wt% P3HT–PEO) exhibited a PCE of 3.60% with thermal annealing at 150 °C for 10 min and remained at 3.61% after annealing for 120 min. In contrasted to the device-0 (without P3HT–PEO), the PCE decreased from 3.26% to 1.61% after annealing at 120 min, which also showed lager clusters of PCBM. This finding will inspire new design of additive materials that can control BHJ morphology through to realize highly efficient and thermally stable solar cells.
研究领域:
材料科学
·
有机光电子学
✓ 已验证
产品关联
DOI
高影响因子
Solar RRL
·
2025
·Vol. 9
·期 7
·2400901
·
IF 4.7
Zhengjie Xu,Jianing Wang,Qiang Lou,Yufeng Jin,Hong Meng,Hang Zhou
Poly(3-hexylthiophene) (P3HT) has attracted significant interest due to its cost-effective synthesis, high purity, and stable film properties. However, the efficiency of perovskite solar cells is limited by energy-level mismatches and nonradiative recombination at the P3HT/perovskite interface. In this study, we introduce the 2,7-dimetapyridinebenzo[4,5]thieno[3,2-b]benzofuran (Mpy-BTBF) small molecule, which features extended π -conjugation and lone pair electrons from oxygen and sulfur atoms. Incorporating Mpy-BTBF into P3HT (M-P3HT) improves charge transport and passivates iodine-related defects, achieving a power conversion efficiency (PCE) of 16.36%, surpassing the pristine P3HT-based device (14.49%). With further Li salts doping, the champion PCE increased to 21.24 from 17.30%. Finally, M-P3HT-based devices maintained over 70% of their efficiency after 600 h of aging at 60% relative humidity and 60°C.
研究领域:
材料科学
·
光伏技术
·
有机电子学
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2018
·
IF 8.097
Liang Chen,Wei Tian,Chaoxiang Sun,Fengren Cao,Liang Li
To meet the demands of next-generation optoelectronic circuits, the design and construction of photodetectors with a tunable photoresponse range and self-powered feature are urgently required. To achieve selective wavelength detection, a band-pass filter is usually required to dislodge the interference of a certain wavelength light, which inevitably enhances the weight and increases the cost. Here, we demonstrate a self-powered photodetector with a tunable response range by constructing a heterojunction structure consisting of poly(3-hexylthiophene) (P3HT), a TiO2 interlayer, and silicon nanowires. By controlling the P3HT concentration, both core–shell and embedded configurations can be obtained, which exhibit different response ranges. This work provides a convenient route to construct self-powered wavelength-selective photodetectors, which may find applications in light communication and biomedical engineering.
研究领域:
材料科学
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光电工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMICAL PHYSICS LETTERS
·
2016
·
IF 1.86
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 .
研究领域:
材料科学
·
光伏技术
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
Inorganics
·
2021
·Vol. 9
·期 12
·87
·
IF 0
He Zhu,Huilin Hu,Minheng Ye,Jinhua Ye,Defa Wang
The photoelectric performance of quantum dots (QDs)-based nanocomposites is closely related to the optical properties of QDs, which play a critical role in the optical absorption and separation/transfer of charge carriers. Herein, we report a nanocomposite composed of light absorber PbS1−xSexquantum dots (QDs), electron-conducting multiwalled carbon nanotubes (MWCNTs) and hole-conducting poly-3-hexylthiophene (P3HT) with tunable photoelectric conversion performance. In addition to using the quantization effect, we proposed solid-solution PbS1−xSexQDs (x = 0, 0.25, 0.5, 0.75, 1) for band gap engineering. In particular, we successfully synthesized relatively small (~5.3 nm) and uniform QDs via the hot-injection method by using PbCl2, S/Se powder and environmentally friendly oleylamine (OLA) as the precursors and/or solvent. By increasing the content of Se, the band gap of PbS1−xSexQDs decreased along with the decrease in the conduction band and valence band edges. The suitable energy level alignment enabled the efficient transfer of photoinduced charge carriers, and hence a much higher photoelectric conversion performance of the PbS1−xSex-QD@MWCNT/P3HT nanocomposites than the individual QDs, P3HT, and binary PbS1−xSex-QD@MWCNT, as well as the best performance, was achieved over PbS0.75Se0.25-QD@MWCNT/P3HT.Keywords:PbS1−xSexquantum dot;multiwalled carbon nanotube;P3HT;nanocomposite;charge transfer;photoelectric conversion
研究领域:
材料科学
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纳米技术
·
光电化学
✓ 已验证
DOI
NPG Asia Materials
·
2016
·Vol. 8
·期 7
·e292
·
IF 8.772
Qu Sanyin,Yao Qin,Wang Liming,Chen Zhenhua,Xu Kunqi,Zeng Huarong,Shi Wei,Zhang Tiansong,Uher Ctirad,Chen Lidong
Conducting polymers are potential candidates for thermoelectric (TE) applications owing to their low thermal conductivity, non-toxicity and low cost. However, the coil conformation and random aggregation of polymer chains usually degrade electrical transport properties, thus deteriorating TE performance. In this work, we fabricated poly(3-hexylthiophene) (P3HT) films with highly oriented morphology using 1,3,5-trichlorobenzene (TCB), an organic small-molecule, as a template for polymer epitaxy under a temperature gradient crystallization process. The resulting P3HT molecules, which were confirmed to be highly anisotropic by a combination of scanning electron microscopy, atomic force microscopy, polarizing microscope, polarized Raman spectroscopy, and two-dimensional-grazing incidence X-ray diffraction (GIXRD) analysis, not only markedly reduced the conjugated defects along the polymer backbone, but also effectively increased the degree of electron delocalization. These combined phenomena produced an efficient, 1D path for carrier movement and therefore resulted in enhanced carrier mobility in the TCB-treated P3HT films. The maximum values of the electrical conductivity and Seebeck coefficient were 320 S cm −1 and 269 μV K −1 , respectively. Consequently, the maximum TE power factor and ZT value at 365 K reached 62.4 μW mK −2 and 0.1, respectively, in the parallel direction of the TCB-treated P3HT film. To the best of our knowledge, these are the highest values reported for pure P3HT TE materials. The method of using organic small-molecule epitaxy to generate highly anisotropic polymer films is expected to be valid for many conducting polymers.
研究领域:
材料科学
·
物理化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF THE CHINESE CHEMICAL SOCIETY
·
2017
·Vol. 64
·期 11
·1308-1315
·
IF 0.935
Ming-Hai Zhang,Guo-Bin Yi,Xi-Hong Zu,Hai-Liang Huang,Yun-Jia Wang,Jian-Chao Wang,Ben-Bin Zhong,Hong-Sheng Luo
In this study, the galvanic displacement reaction between silver and AuCl 4 − was carried out to synthesize a series of silver nanowire (Ag NW) @ gold nanoparticle (Au NP) hybrid nanowires. The influence of Ag NW @ Au NP hybrid nanowires on the fluorescence properties of the poly (3-hexylthiophene) (P3HT) was investigated. The particle sizes of Au NPs on the hybrid nanowires could be adjusted by varying the reaction time and the concentration of the HAuCl 4 solution. Furthermore, steady-state fluorescence measurements showed that the fluorescence intensity of the P3HT films was higher on various Ag NW @ Au NP hybrid nanowires compared to that on a bare silicon substrate. This was due to the increase in the intensity of electromagnetic field by the localized surface plasmon resonances of Au NPs and surface plasmon polaritons of Ag NWs from the hybrid nanowires. The results were further confirmed by the Raman spectra of the P3HT films on different substrates.
研究领域:
材料科学
·
光学
✓ 已验证
DOI
高影响因子
ORGANIC ELECTRONICS
·
2025
·
IF 2.6
Taotao Rao,Qian Qiao,Jun Zhou,Jian Zheng,Xuan Yu,Xiaoming Yu,Cunxi Zhang,Rui Wang
Self-powered hybrid plasmonic photodetectors based on Zinc oxide (ZnO) nanorod arrays (NRAs)/ZnO quantum dots (QDs)/poly(3-hexylthiophene) (P3HT) incorporated with gold nanoparticles (Au NPs) were successfully fabricated. The photoresponse performance of the ZnO NRAs/ZnO QDs/P3HT hybrid photodetectors was enhanced by the incorporation of Au NPs. The optimal ZnO NRAs/ZnO QDs-Au(250) NPs/P3HT organic-inorganic hybrid plasmonic photodetector exhibits a photo-to-dark current ratio of 2450, a responsivity of 46 mA/W and a specific detectivity of 1.88 × 10 11 Jones under 525 nm light illumination and zero bias voltage. This study offers novel insights into the utilization of metal nanoparticles to enhance the performance of organic-inorganic hybrid photodetectors.
研究领域:
材料科学
·
光电子学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Chemistry A
·
2016
·Vol. 4
·期 47
·18432-18443
·
IF 8.262
Mingjing Zhu,Heejun Kim,Yu Jin Jang,Sungmin Park,Du Yeol Ryu,Kyungkon Kim,Ping Tang,Feng Qiu,Dong Ha Kim,Juan Peng
Organic photovoltaics (OPVs) have drawn an extensive amount of attention due to their low cost, processibility and flexibility. However, a cell based on a blend of poly(3-hexylthiophene) (P3HT) and [6,6]-phenyl-C61-butyric acid methyl ester (PC61BM) has a limited power conversion efficiency (PCE) due to the short exciton diffusion length of ∼10 nm. We address this issue by designing a series of all-conjugated diblock copolymers, poly(3-hexylthiophene)-b-poly(3-(6-diethylphosphonatohexyl)thiophene) (P3HT-b-P3PHT), intended for use as additives to improve the performance of P3HT:PC61BM-based photovoltaic devices. The PCE of the devices improved from 3.30% to 4.03% with the addition of P3HT-b-P3PHT (3 : 1). The thermal stability of devices with P3HT-b-P3PHT additives improved significantly relative to that of the P3HT:PC61BM reference device, where the devices including a copolymer with a higher P3PHT content exhibited a better thermal stability. It was found that the fill factor (FF) could be regulated by simply varying the block ratio of P3HT-b-P3PHT and played a crucial role in improving both the PCE and the thermal stability. The P3HT-b-P3PHT diffused at the P3HT:PC61BM interface, improved the miscibility between P3HT and PC61BM, optimized the nanoscale morphology of the photoactive layer, and reduced the active layer roughness, all of which improved the FF and thus contributed to an improvement in device performance.
研究领域:
材料科学
·
能源科学
·
高分子化学
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Junjie Tong,Chen Dong,Victor Marrugat Arnal,Miaosen Yao,Qichao Wang,Yuhao Song,Yingying Deng,Yueyue Gao,Gentian Yue,Weifeng Zhang,Makhsud I. Saidaminov,Furui Tan
P3HT is a promising hole-transport layer (HTL) for efficient and stable carbon electrode-based perovskite solar cells (C-PSCs). However, the reported low efficiencies of P3HT C-PSCs, resulting from the unmatched band alignment and electronically poor contact between perovskite and P3HT, is an obstacle. In this work, we propose a binary HTL system that incorporates PTAA into P3HT to address this issue, thereby achieving efficiencies of 21.3 % (0.04 cm 2 ) and 18.8 % (1.0 cm 2 ) under AM 1.5G illumination, and 35.2 % under indoor illumination of 1000 lx, all of which are the highest reported values for low-temperature printable C-PSCs. Experimental and theoretical results revealed that the performance improvements mainly stem from the following collaborative effects between P3HT and PTAA: 1) the introduction of PTAA increases more face-on orientations of P3HT as well as enhanced π–π stacking, forming more effective charge transport channels as molecular bridges; 2) the hole extraction barrier from perovskite to P3HT is reduced by 0.07 eV through incorporating PTAA; 3) triarylamine PTAA and other more face-on configurations can provide additional and stronger passivation sites, intensifying the defect passivation effects. Finally, unencapsulated P3HT-PTAA C-PSCs maintain ≈91 % of initial performance after maximum power point tracking for over 900 h.
研究领域:
材料科学
·
能源科学
✓ 已验证
产品关联
DOI
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2015
·
IF 7.435
Jianling Zhang,Haigang Yang,Shoubin Xu,Long Yang,Yuanqing Song,Long Jiang,Yi Dan
Conjugated polymer/TiO 2 photocatalysts hold great promise for solar chemical conversion processes by combining the advantages from both the conjugated polymer and the inorganic semiconductor, overcoming the serious drawbacks of fast charge recombination and the limited visible light absorption of inorganic semiconductor through interfacial electron transfer. To address the crucial way to promote the visible light photocatalytic activity of conjugated polymers/TiO 2 photocatalysts, P3HT/TiO 2 composites with strong interfacial interaction between P3HT and TiO 2 , which was demonstrated by the results of X-ray photoelectron spectroscopy and dissolution tests, were prepared by binding cyanoacrylic acid end-groups functionalized P3HT to the surface of TiO 2 . The pseudo-first-order kinetic constants of photocatalytic degradation of model pollutant methyl orange (MO) under visible light with P3HT/TiO 2 composites of monofunctionalized and difunctionalized polymers were 7.06 and 20.18 times as great as that of unfunctionalized polymer, respectively, indicating a remarkably enhanced visible light photocatalytic activities by an order of magnitude with the incorporation of cyanoarrylic acid end-groups. In consideration of their similar morphology, specific surface area, ability of harvesting visible light and adsorption capacities toward MO independent of end-group functionalization, the dramatically enhanced photocatalytic activity arises from the facilitated electron injection and separation of photogenerated carriers owing to strong interfacial interaction between TiO 2 and end-group functionalized P3HT, which was proved to be crucial for photocatalytic capability of conjugated polymer/TiO 2 photocatalysts, providing a new effective direction for the improvement of their visible light photocatalytic activity.
研究领域:
材料科学
·
环境科学
·
光催化技术
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）