ACS Applied Materials & Interfaces
·
2023
·
IF 9.5
Hailin Pan,Jie Wang,Zhi Chen,Ziqi Su,Zheng Tang,Zaifei Ma
Developing transparent conductors to replace indium tin oxide (ITO) is a critical objective in the field of organic optoelectronics. Non-atomically doped (NAD) ZnO thin films, while currently exhibiting limited conductivity, are highly promising candidates due to their unique advantages, such as having complete transparency in both the visible and near-infrared spectral regions, solution processability, and the desired surface electronic properties. In this work, the impact of surface modification by insulating polymers on the ultraviolet-enhanced conductivity of NAD-ZnO films is investigated. It was found that polymer modifiers that are rich in amino and hydroxyl groups are effective at increasing the concentration of oxygen vacancies and the conductivity of NAD-ZnO films. The highest conductivity of over 1000 S cm–1, which is more than twice as high as the previous record for NAD-ZnO films, is achieved using polyethylenimine ethoxylated (PEIE) to modify NAD-ZnO films. Subsequently, the replacement of ITO in organic photovoltaic devices by a ZnO/PEIE electrode is realized. The ZnO/PEIE-based OPV devices that were created exhibit performances comparable to those of ITO-based devices under simulated solar illumination and performances better than those achieved with ITO-based devices under simulated indoor illumination. These results make NAD-ZnO a promising candidate for the widespread replacement of ITO in optoelectronic devices.
研究领域:
材料科学
·
光电化学
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产品关联
DOI
PubMed
高影响因子
Journal of Physical Chemistry C
·
2021
·
IF 4.126
Siyuan Weng,Man Zhao,Dayong Jiang
One of the most interesting structures of organic photodetectors (OPDs) is the bulk heterojunction (BHJ), which can be achieved by mixing electron donors and electron acceptors in a suitable solvent and then spin-coating. BHJs have proven to be a very useful method to overcome the short diffusion length of organic semiconductor excitons. However, this structure enhances disorder and hinders the collection of photogenerated carriers. Therefore, it is very important to prepare OPDs with this structure. In this paper, we show how to use conjugate polymer donor poly(3-hexylthiophene) (P3HT) and fullerene derivative acceptor 6,6-phenyl C61-butyric acid methyl ester (PC61BM) to form a binary BHJ active layer by spin-coating to improve the performance and detector wavelength of a ZnO ultraviolet (UV) photodetector (PD). Compared with the ZnO UV PD, the responsivity of the OPD can reach 0.58 A W–1, which is increased by about 7.14 times. Furthermore, the OPD shows improved absorption, high photocurrent to dark current ratio (1.63 × 104), and excellent detection capability (3.67 × 1012 Jones). The preparation of a new OPD by this work shows strong performance and provides a new idea for the research of OPD. Therefore, it is very important to design and manufacture ZnO UV PD to form a BHJ OPD with organic polymers P3HT:PC61BM.
研究领域:
材料科学
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光电探测器研究
✓ 已验证
DOI
高影响因子
Energies
·
2024
·Vol. 17
·期 16
·4022
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IF 3
Yuheng Ni,Hongyue Tian,Ruifeng Gong,Hang Zhou,Wenjing Xu,Jian Wang,Xiaoling Ma,Fujun Zhang
In this work, layer-by-layer organic photovoltaics (LbL OPVs) were prepared by sequentially spin-coating PM1 and L8-BO solutions. The solvent additive 1,8-diiodooctane (DIO), which has a high boiling point, and solid additive l,3,5-trichlorobenzene (TCB), which has a high volatile, were deliberately selected to incorporate with the L8-BO solutions. The power conversion efficiency (PCE) of LbL OPVs was considerably enhanced from 17.43% to 18.50% by employing TCB as the additive, profiting by the concurrently increased short-circuit current density (JSC) of 26.74 mA cm−2and a fill factor (FF) of 76.88%. The increasedJSCs of LbL OPVs with TCB as additive were ascribed to the tilted-up absorption edge in the long wavelength range and the external quantum-efficiency spectral difference between LbL OPVs with and without TCB as an additive. The molecular arrangement of L8-BO and the PM1 domain was enhanced with TCB as an additive, which was most likely responsible for the increased charge mobilities in the layered films processed with additives. It was indicated that the dynamic film-forming process of the acceptor layers plays a vital role in achieving efficient LbL OPVs by employing additive strategy. Over 6% PCE improvement of the LbL OPVs with PM1/L8-BO as the active layers can be achieved by employing TCB as additive.
研究领域:
材料科学
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光物理学
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产品关联
DOI
高影响因子
Journal of Materials Chemistry A
·
2016
·Vol. 4
·期 47
·18432-18443
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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
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能源科学
·
高分子化学
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL PHYSICS
·
2015
·
IF 1.652
Wei-Long Xu,Fei Zheng,Jia-Li He,Meng-Qi Zhu,Xiao-Tao Hao
“Solvent additives” process is a simple and efficient way to achieve high power conversion efficiency in bulk heterojunction organic solar cells. The morphology measurements at the nanoscale confirm that the addition of solvent additives may promote the 3′H-Cyclopropa[8, 25] [5, 6] fullerene-C70-D5 h(6)-3′ -butanoicacid, 3′-phenyl-, methyl ester (PCBM) aggregation in poly(3-hexylthiophene-2,5-diyl) (P3HT: PCBM) blend films. Larger phase separation between P3HT and PCBM caused by solvent additives facilitates the formation of bicontinuous network and therefore charge carriers can transport efficiently to the electrodes. Small angle X-ray scattering was applied to quantify the cluster size of PCBM and the interfacial area between P3HT and PCBM. The results demonstrate that the introduction of solvent additives may enlarge the size of PCBM clusters without decreasing interfacial area. Solvent additives could balance the large interfacial area for exciton dissociation and bicontinuous pathways for carrier transportation. The effect of thermal annealing on the nanomorphology of blend film is also investigated for comparison.
研究领域:
材料科学
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物理化学
✓ 已验证
产品关联
DOI
高影响因子
Polymers
·
2022
·Vol. 14
·期 18
·3835
·
IF 4.967
Guoping Zhang,Lihong Wang,Chaoyue Zhao,Yajie Wang,Ruiyu Hu,Jiaxu Che,Siying He,Wei Chen,Leifeng Cao,Zhenghui Luo,Mingxia Qiu,Shunpu Li,Guangye Zhang
All-polymer solar cells (all-PSCs) are organic solar cells in which both the electron donor and the acceptor are polymers and are considered more promising in large-scale production. Thanks to the polymerizing small molecule acceptor strategy, the power conversion efficiency of all-PSCs has ushered in a leap in recent years. However, due to the electrical properties of polymerized small-molecule acceptors (PSMAs), the FF of the devices is generally not high. The typical electron transport material widely used in these devices is PNDIT-F3N, and it is a common strategy to improve the device fill factor (FF) through interface engineering. This work improves the efficiency of all-polymer solar cells through interfacial layer engineering. Using PDINN as the electron transport layer, we boost the FF of the devices from 69.21% to 72.05% and the power conversion efficiency (PCE) from 15.47% to 16.41%. This is the highest efficiency for a PY-IT-based binary all-polymer solar cell. This improvement is demonstrated in different all-polymer material systems.Keywords:organic photovoltaics;all-polymer solar cells;power conversion efficiency;electron transport layer
研究领域:
材料科学
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能源科学
✓ 已验证
DOI
PubMed
高影响因子
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
·
2013
·Vol. 51
·期 13
·2939-2947
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IF 3.543
Zong-Quan Wu,Cheng-Gang Qi,Na Liu,Ying Wang,Jun Yin,Yuan-Yuan Zhu,Long-Zhen Qiu,Hong-Bo Lu
In this article, the synthesis of a series of conjugated rod–rod block copolymers based on poly(3-hexylthiophene) (P3HT) and poly(phenyl isocyanide) (PPI) building blocks in a single pot is presented. Ni-catalyzed Grignard metathesis polymerization of 2,5-dibromo-3-hexylthiophene and subsequent addition of 4-isocyanobenzoyl-2-aminoisobutyric acid decyl ester in the presence of Ni(dppp)Cl 2 as a single catalyst afford P3HT- b -PPI with tunable molecular weights and compositions. In solid state, microphase separation occurred as differential scanning calorimetric analysis of P3HT- b -PPI revealed two glass transition temperatures. In solutions, the copolymers can self-assemble into spherical aggregates with P3HT core and PPI shell in tetrahydrofuran and exhibit amorphous state in CHCl 3 . However, atomic force microscopy revealed that the block copolymers self-assemble into nanofibrils on the substrate. These unique features warrant the resultant conjugated rod–rod copolymers' potential study in organic photovoltaic and other electronic devices. © 2013 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2013, 51, 2939–2947
研究领域:
材料科学
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高分子化学
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纳米技术
✓ 已验证
产品关联
DOI
高影响因子
Nano Energy
·
2025
·
IF 17.1
Haozhou Huang,Yifan Wu,Yuxin Ma,Peng Xue,Yan Cao,Bo Wang,Xinzhao Zhang,Shudi Wang,Zhenqian Pang,Tengyao Jiang,Yanghua Lu,Gang Tan
Semitransparent organic photovoltaic (ST-OPV) windows have emerged as a promising solution for sustaining renewable energy and enhancing energy efficiency in buildings, for their ability to provide natural lighting while simultaneously generating electricity. However, the building field lacks a unified and comprehensive framework to guide the selection of materials and structural design for ST-OPVs in building envelopes, especially windows. To address this gap, this work establishes a systematic screening framework for ST-OPV device structures, focusing on active layer materials, interface layer materials, and electrode thicknesses. Instead of solely focusing on enhancing light utilization efficiency (LUE), the screening process integrates conventional photovoltaic performance metrics such as power conversion efficiency (PCE) and average visible transmittance (AVT) with essential architectural indices, including color rendering index (CRI), thermal performance, and overall building energy efficiency, ensuring that the designed ST-OPV can be truly applied in real world. The results indicates that ST-OPVs based on the PM6:Y6 system with a wide-bandgap donor showing top-tier performance cannot meet building code requirements for exterior windows, while ST-OPVs using the PCE10–2F:Y6 system with a narrow-bandgap donor can be fabricated into fully code-compliant photovoltaic windows, providing energy-saving benefits in any climate zone worldwide. The correspondingly designed ST-OPV window demonstrates a U-factor of 0.654 W/m 2 K, a solar heat gain coefficient (SHGC) of 0.236, and an AVT/SHGC ratio of 1.356. Compared to conventional commercial windows, this ST-OPV window can achieve annual energy savings of 74.8–239.7 kWh/m 2 around the world, showcasing its potential for real-world energy-efficient building applications.
研究领域:
材料科学
·
能源工程
·
建筑设计
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF POWER SOURCES
·
2024
·
IF 8.1
Kanglin Yu,Yuanyuan Xiao,Shiqi Hu,Xufan Zheng,Bowen Gao,Jingjing Xu,Zongzhe Li,Ruike Zhou,Yaowen Hu,Qingliang You,Biao Xiao,Renqiang Yang
Quantum dot (QD) based luminescent solar concentrator-organic photovoltaic (LSC-OPV) systems demonstrate significant potential in applications including building-integrated photovoltaics (BIPV). In this study, eco-friendly Ag–In–S/Zn–S QDs with a high photoluminescence quantum yield (PLQY = 73 %) are synthesized using a simple hydrothermal method. The influence of Zn-S precursor reactivity on QD properties is studied. The synthesized QDs exhibit excellent stability over a wide temperature range (90–360 K). The Ag–In–S/Zn–S LSCs maintain over 90 % of their initial PLQY after a two-month exposure to natural sunlight. Additionally, the power conversion efficiency (PCE) of the fabricated LSC-OPV system reaches 1.00 % under near-actual condition (9 mW cm −2 ). Moreover, when the irradiation intensity is further decreased to 0.4 mW cm −2 , the LSC-OPV system shows a PCE as high as 5.27 %, demonstrating that the LSC-OPV system can operate efficiently at low illumination intensities. Notably, the fabricated LSCs have minimal impact on the incident sunlight spectrum, making them suitable for BIPV applications. Thus, this study is a first that is known to report the integration of eco-friendly QD-based LSCs with organic photovoltaic cells, which positively contributes to the advancement of BIPV.
研究领域:
材料科学
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能源技术
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
ChemElectroChem
·
2013
·Vol. 1
·期 2
·471-475
·
IF 0
Ze Zhong,Jian Liu,Zhi Yuan Xie,Zhi Yuan Wang
Graphical A stacked bilayer of phenyl-grafted graphene oxide (P-GO) and a donor material with high hole-transfer mobility is induced as interfacial bilayer in OPV cells between the active materials and anode. Single-layer P-GO acts as interfacial material and the donor material as a partition layer. This interfacial bilayer can minimize exciton quenching and inverse current, thus increasing J sc , which significantly improves the performance of OPV cells. A solution-processable interfacial bilayer is found to be able to significantly increase a short-circuit current and thus the overall performance of bulk heterojunction organic photovoltaic cells. The interfacial bilayer is comprised of surface-modified single-layer graphene oxide and a donor polymer. The use of the interfacial bilayer can minimize exciton quenching and inverse current and does not alter the energy level of photovoltaic devices, which is also applicable to other organic optoelectronic diode devices.
研究领域:
材料科学
·
光电化学
✓ 已验证
产品关联
DOI
NEW JOURNAL OF CHEMISTRY
·
2018
·Vol. 42
·期 11
·8960-8967
·
IF 3.201
Yang Miao,Yincai Xu,Yuewei Zhang,Xianju Yan,Kaiqi Ye,Yue Wang
A water/alcohol soluble small molecular cathode interlayer (CIL) with the quaternary ammonium ions terminated by trihydroxybenzene as the pendant polar functionalities and a commercially available spirobifluorene (SBF) as a 3D-structural conjugated backbone, namely, TBSBF, was synthesized and applied in conventional single-junction polymer solar cells (PSCs). TBSBF was found to effectively enhance the performance of the PSCs by simultaneously increasing the open-circuit voltage (Voc), short-circuit current (Jsc) and fill factor (FF). Combined measurements of the current density–voltage characteristics, ultraviolet photoemission spectroscopy (UPS) and the electron mobility demonstrated that TBSBF could effectively increase the built-in potential and electronic mobility, leading to higher performance of the devices. In addition, the atomic force microscopy (AFM) measurements showed that TBSBF could self-assemble into a leopard print-like pattern on the hydrophobic active layer surface. These results not only indicate TBSBF is a promising CIL material for the future solution-processed PSCs, but also provide a new way to design efficient CILs with good film-formation properties.
研究领域:
材料科学
·
光电子学
✓ 已验证
DOI
高影响因子
npj Flexible Electronics
·
2021
·Vol. 5
·期 1
·1-8
·
IF 12.74
Cui Nan,Song Yu,Tan Ching-Hong,Zhang Kai,Yang Xiye,Dong Sheng,Xie Boming,Huang Fei
To achieve adhesive and conformable wearable electronics, improving stretchable transparent electrode (STE) becomes an indispensable bottleneck needed to be addressed. Here, we adopt a nonuniform Young’s modulus structure with silver nanowire (AgNW) and fabricate a STE layer. This layer possesses transparency of >88% over a wide spectrum range of 400–1000 nm, sheet resistance below 20 Ω sq −1 , stretchability of up to 100%, enhanced mechanical robustness, low surface roughness, and good interfacial wettability for solution process. As a result of all these properties, the STE enables the fabrication of a highly efficient ultraflexible wearable device comprising of both organic photovoltaic (OPV) and organic photodetector (OPD) parts with high mechanical durability and conformability, for energy-harvesting and biomedical-sensing applications, respectively. This demonstrates the great potential of the integration of OPVs and OPDs, capable of harvesting energy independently for biomedical applications, paving the way to a future of independent conformable wearable OPV/OPDs for different applications.
研究领域:
材料科学
·
能源技术
·
生物医学工程
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）