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学者姓名：吴炯桦
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Abstract ：
制备了基于不同碘化铅浓度的反式钙钛矿太阳能电池,并用SEM、XRD、紫外-可见吸收谱、空间电荷限制电流曲线、瞬态光电压谱进行了表征.研究发现,碘化铅浓度对电池性能有很大影响,即随着碘化铅浓度的增加,短路电流略有降低,而开路电压和填充因子上升较大.同时,较高的PbI2浓度可有效减弱迟滞现象.通过结合光学表征与电学表征,进一步发现过量的PbI2可以在钙钛矿晶界处钝化缺陷,降低薄膜缺陷密度,从而提高器件的开路电压和填充因子.最终,在优化的摩尔量下,采用ITO/MeO-2PACz/PVSK/PC61BM/BCP/Ag的反式结构,制备的钙钛矿太阳能电池表现出卓越的功率转换效率(PCE),达到了22.90%.
Keyword ：
反式钙钛矿太阳能电池 反式钙钛矿太阳能电池 碘化铅 碘化铅 缺陷钝化 缺陷钝化
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| GB/T 7714 | 黄少彪 , 吴炯桦 . 碘化铅含量对反式钙钛矿太阳能电池性能的影响 [J]. | 光电子技术 , 2025 , 45 (1) : 45-51 . |
| MLA | 黄少彪 等. "碘化铅含量对反式钙钛矿太阳能电池性能的影响" . | 光电子技术 45 . 1 (2025) : 45-51 . |
| APA | 黄少彪 , 吴炯桦 . 碘化铅含量对反式钙钛矿太阳能电池性能的影响 . | 光电子技术 , 2025 , 45 (1) , 45-51 . |
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提出了一种引入苯乙胺硫氰酸盐作为拟卤化物功能添加剂优化钙钛矿层埋底界面,从而制备高性能钙钛矿太阳能电池的新策略.通过在二氧化锡层和钙钛矿层界面处加入微量苯乙胺硫氰酸盐,利用其阴阳离子的特性对薄膜生长进行调控、对界面缺陷进行钝化,从而提升钙钛矿晶体质量,降低钙钛矿层埋底界面的缺陷密度.优化后的钙钛矿薄膜均匀致密,制备的钙钛矿太阳能电池性能优异,实现了22.83%的功率转换效率且几乎无迟滞现象.
Keyword ：
埋底界面 埋底界面 拟卤化物 拟卤化物 界面钝化 界面钝化 钙钛矿太阳能电池 钙钛矿太阳能电池
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| GB/T 7714 | 杭陈旺 , 吴炯桦 . 拟卤化物添加剂优化的高效钙钛矿太阳能电池 [J]. | 光电子技术 , 2025 , 45 (1) : 28-32 . |
| MLA | 杭陈旺 等. "拟卤化物添加剂优化的高效钙钛矿太阳能电池" . | 光电子技术 45 . 1 (2025) : 28-32 . |
| APA | 杭陈旺 , 吴炯桦 . 拟卤化物添加剂优化的高效钙钛矿太阳能电池 . | 光电子技术 , 2025 , 45 (1) , 28-32 . |
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2D perovskite materials are ideal candidates for indoor photovoltaic (IPV) applications due to their tunable bandgap, high absorption coefficients, and enhanced stability. However, attaining uniform crystallization and overcoming low carrier mobility remain key challenges for 2D perovskites, limiting their overall performance. In this study, a 2D perovskite light-absorbing layer is constructed using a Dion-Jacobson (DJ)-phase EDA(FA)(4)Pb5I16 (n = 5) and introduced butylammonium iodide (BAI) for interface modification, thereby creating a novel DJ/Ruddlesden-Popper (RP) dual 2D perovskite heterostructure. By adjusting the thickness of the BAI-based perovskite layer, the relationship between interfacial defect states and carrier mobility is investigated under varying indoor light intensities. The results indicate that, by achieving a balance between interfacial defect passivation and carrier transport, the optimized 2D perovskite device reaches a power conversion efficiency (PCE) of 30.30% and an open-circuit voltage (V-OC) of 936 mV under 1000 lux (3000 K LED). 2D-DJ/RP perovskite IPV exhibits a twentyfold increase in T-90 lifetime compared to 3D perovskite devices. It is the first time to systematically study 2D perovskites in IPV applications, demonstrating that rationally designed and optimized 2D perovskites hold significant potential for fabricating high-performance indoor PSCs.
Keyword ：
2D perovskite solar cells 2D perovskite solar cells carrier transport carrier transport defect passivation defect passivation dual-phase 2D perovskite heterostructures dual-phase 2D perovskite heterostructures indoor photovoltaic indoor photovoltaic
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| GB/T 7714 | Wang, Renjie , Wu, Jionghua , Zheng, Qiao et al. Stable and Efficient Indoor Photovoltaics Through Novel Dual-Phase 2D Perovskite Heterostructures [J]. | ADVANCED MATERIALS , 2025 , 37 (18) . |
| MLA | Wang, Renjie et al. "Stable and Efficient Indoor Photovoltaics Through Novel Dual-Phase 2D Perovskite Heterostructures" . | ADVANCED MATERIALS 37 . 18 (2025) . |
| APA | Wang, Renjie , Wu, Jionghua , Zheng, Qiao , Deng, Hui , Wang, Weihuang , Chen, Jing et al. Stable and Efficient Indoor Photovoltaics Through Novel Dual-Phase 2D Perovskite Heterostructures . | ADVANCED MATERIALS , 2025 , 37 (18) . |
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The construction of metal-organic frameworks that possesses the tunable metal active sites and synergistic effect for the reactant activation is an attractive strategy for the optimization of photocatalytic performance. Herein, a series of MIL-88A(Fe1-xCux) were synthesized for photocatalytic nitrogen reduction reaction (NRR). It was characterized that the Fe2+ and oxygen vacancies were produced in MIL-88A(Fe) due to the partly reduction of ligand fumaric acid in synthesis process. The substitution of Fe3+ with Cu2+ induces charge imbalance and lattice distortion, further increasing the content of Fe2+ and oxygen vacancies. The optimal sample MIL-88A (Fe0.95Cu0.05) (CMA-5 %) exhibits the highest nitrogen fixation performance of 68.6 mu mol & sdot;g- 1 & sdot;h- 1, which is 8 times higher than that of the pristine material. It is attributable to the synergistic effect of the abundant Fe2+ and oxygen vacancies as active sites to promote N2 coordination and photogenerated carrier separation, resulting in the efficient conversion of activated N2 to NH3. Furthermore, the in-situ Diffuse Reflectance Infrared Fourier Transform Spectroscopy provide clear evidence of the behavior of the N2 adsorption and activation on the catalyst. Finally, we propose a potential mechanism at molecular level regarding the relationship between the synergistic effect and the nitrogen fixation activity.
Keyword ：
Active sites Active sites Coordination activation Coordination activation Defect manipulation Defect manipulation MIL-88A(Fe1-xCux) MIL-88A(Fe1-xCux) Photocatalytic N 2 fixation Photocatalytic N 2 fixation
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| GB/T 7714 | Liu, Runlai , Chen, Qi , Qiu, Jinjing et al. Cu mediated defect manipulation in MIL-88A(Fe) for boosting photocatalytic N2 fixation [J]. | JOURNAL OF COLLOID AND INTERFACE SCIENCE , 2025 , 692 . |
| MLA | Liu, Runlai et al. "Cu mediated defect manipulation in MIL-88A(Fe) for boosting photocatalytic N2 fixation" . | JOURNAL OF COLLOID AND INTERFACE SCIENCE 692 (2025) . |
| APA | Liu, Runlai , Chen, Qi , Qiu, Jinjing , Liu, Cheng , Wu, Jionghua , Yu, Jimmy C. et al. Cu mediated defect manipulation in MIL-88A(Fe) for boosting photocatalytic N2 fixation . | JOURNAL OF COLLOID AND INTERFACE SCIENCE , 2025 , 692 . |
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Zinc oxide (ZnO) is used as an electron transport layer (ETL) in inverted organic solar cells (IOSCs) owing to its excellent performance, such as good light transmission and high conductivity, while its surface defects and photocatalytic properties limit the development of IOSCs. Herein, we apply an antioxidant, syringic acid (SA), to modify the surface of ZnO film, which observably improve the efficiency and stability of IOSCs. It is found that SA can effectively passivate the surface defects of ZnO and optimize surface morphology, as well as reduce the work function (WF) of ZnO resulting in an improvement of the charge transport of IOSCs. The power conversion efficiency (PCE) of PM6:Y6-based IOSCs is increased from 16.19 % to 18.18 %, it is the highest PCE values of the single-junction IOSCs based on PM6:Y6 system as reported. Meanwhile, the photostability of the device is markedly improved due to SA could suppress the photocatalytic of ZnO under the ultraviolet aging.
Keyword ：
Photostability' Inverted organic solar cells Photostability' Inverted organic solar cells Surface defects Surface defects Syringic acid Syringic acid Zinc oxide Zinc oxide
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| GB/T 7714 | Zheng, Qiao , Guo, Zhaohuang , Zhuang, Jinyong et al. 18.18 % Efficiency of organic solar cells based on PM6:Y6 with Syringic acid modified ZnO [J]. | SURFACES AND INTERFACES , 2025 , 65 . |
| MLA | Zheng, Qiao et al. "18.18 % Efficiency of organic solar cells based on PM6:Y6 with Syringic acid modified ZnO" . | SURFACES AND INTERFACES 65 (2025) . |
| APA | Zheng, Qiao , Guo, Zhaohuang , Zhuang, Jinyong , Zhou, Ziqi , Wu, Jionghua , Deng, Hui et al. 18.18 % Efficiency of organic solar cells based on PM6:Y6 with Syringic acid modified ZnO . | SURFACES AND INTERFACES , 2025 , 65 . |
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Defect engineering and single atom incorporation can provide more active sites to modulate the surface electronic structure of a catalyst and to activate reactant molecules. Herein, a series of Ru-anchored DUT-67(Zr) MOFs with explicit defect sites have been prepared for photocatalytic nitrogen reduction. It is characterized that Ru/DUT-67(Zr) possesses uniformly dispersed Ru single atoms and unsaturated Zr. Typically, 1.0 %Ru/DUT-67 (Zr) shows best performance with a NH4+ yield of 61.1 mu mol center dot g-1 center dot h-1, which is approximately 6-folds higher than that of defective DUT-67(Zr) without Ru single atom (DUT-L), while pristine DUT-67(Zr) exhibits a lack of the photocatalytic N2 reduction activity. The observed enhancement can be attributed to the introduction of Ru and unsaturated Zr sites induced by irradiation. Both of them can work together act as active centers to absorb and activate dinitrogen molecule. Furthermore, benefited from the electronic channel (Ru-S) between Ru and DUT-67 (Zr), the separation of photogenerated carriers has been greatly improved, contributing to the collaborative conversion of activated N2 to NH3. This study provides a new insight for designing a dual active sites photo- catalyst with unsaturated coordinated sites and the single atoms by the coordinately interaction of functionalized linker.
Keyword ：
Nitrogen activation Nitrogen activation Ru/DUT-67 MOF Ru/DUT-67 MOF Single atoms Single atoms Synergistic effect Synergistic effect
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| GB/T 7714 | Qiu, Jinjing , Chen, Qi , Liu, Cheng et al. Ru single atom modified DUT-67(Zr) with unsaturated Zr for high-efficiency photocatalytic nitrogen reduction [J]. | APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY , 2025 , 366 . |
| MLA | Qiu, Jinjing et al. "Ru single atom modified DUT-67(Zr) with unsaturated Zr for high-efficiency photocatalytic nitrogen reduction" . | APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY 366 (2025) . |
| APA | Qiu, Jinjing , Chen, Qi , Liu, Cheng , Chen, Yueling , Wu, Jionghua , Jing, Kaiqiang et al. Ru single atom modified DUT-67(Zr) with unsaturated Zr for high-efficiency photocatalytic nitrogen reduction . | APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY , 2025 , 366 . |
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This work develops a series of bimetallic MIL-68(InFe) MOF nanorods (NM(In1-xFex)) mimicking the nitrogenase for biomimetic photocatalytic N-2 fixation. The partial substitution of In3+ with Fe3+ leads to the electron redistribution from In3+ to Fe3+, generating electron-poor In3+ (In(3+delta)+) sites and electron-rich Fe3+ (Fe(3-delta)+) sites as an electron acceptor-donor combination to promote the N-2 activation by a pi back-donation mechanism. The smaller size of the nanorods further provides more accessible active sites than the bulk counterpart. In cooperation with the H+ released from the H2O, the activated N-2 molecules were reduced by photogenerated electrons to give NH3. The optimal sample NM(In0.90Fe0.10) exhibited the highest NH4+ production rate of 30.8 mu molh(-1)g(-1) without any sacrificial agent, attributed to the presence of abundant In/Fe bimetallic sites for N-2 activation and enhanced charge mobility. This work provides new insights into rational design for artificial N-2 fixation systems by mimicking natural nitrogenase.
Keyword ：
Dual-metal sites Dual-metal sites MOFs MOFs N-2 activation N-2 activation Photocatalysis Photocatalysis
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| GB/T 7714 | Liu, Cheng , Chen, Mengning , Chen, Yueling et al. Bimetallic MIL-68(InFe) MOF nanorods for biomimetic photocatalytic N2 fixation [J]. | CHEMICAL ENGINEERING JOURNAL , 2024 , 498 . |
| MLA | Liu, Cheng et al. "Bimetallic MIL-68(InFe) MOF nanorods for biomimetic photocatalytic N2 fixation" . | CHEMICAL ENGINEERING JOURNAL 498 (2024) . |
| APA | Liu, Cheng , Chen, Mengning , Chen, Yueling , Chen, Qi , Wu, Jionghua , Lin, Sen et al. Bimetallic MIL-68(InFe) MOF nanorods for biomimetic photocatalytic N2 fixation . | CHEMICAL ENGINEERING JOURNAL , 2024 , 498 . |
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We report a simple, effective, and universal lattice reconstruction approach to improve the quality of perovskite films by using nonpolar solvents with high Gutmann donor numbers (DNs). We find that high-DN nonpolar solvents, for instance, ethyl acetate, can interact with perovskite precursors. Such a solvent can make the perovskite lattice more ordered and "harder" and promote the formation of heterostructures with low-dimensional perovskite impurities and residual solvent molecules. As a result, the lattice-reconstructed perovskite films exhibit reduced defect densities and suppressed ion migration. The resultant mixed-halide blue perovskite light-emitting diodes (PeLEDs) show greatly enhanced tolerance to high driving current densities and voltages, demonstrating high brightness, outstanding color stability and low efficiency roll-off. Our work provides a deep understanding of the interactions between nonpolar solvents and perovskites and offers useful guidelines for further development of high-power PeLEDs.
Keyword ：
color stability color stability high brightness high brightness ion migration ion migration low efficiency roll-off low efficiency roll-off mixed halide perovskite mixed halide perovskite
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| GB/T 7714 | Wu, Jionghua , Wang, Renjie , Zhang, Rui et al. Lattice reconstruction for mixed-halide blue perovskite light-emitting diodes with high brightness, outstanding color stability and low efficiency roll-off [J]. | SCIENCE CHINA-MATERIALS , 2024 , 67 (11) : 3553-3560 . |
| MLA | Wu, Jionghua et al. "Lattice reconstruction for mixed-halide blue perovskite light-emitting diodes with high brightness, outstanding color stability and low efficiency roll-off" . | SCIENCE CHINA-MATERIALS 67 . 11 (2024) : 3553-3560 . |
| APA | Wu, Jionghua , Wang, Renjie , Zhang, Rui , Portale, Giuseppe , Solano, Eduardo , Liu, Xiaoke et al. Lattice reconstruction for mixed-halide blue perovskite light-emitting diodes with high brightness, outstanding color stability and low efficiency roll-off . | SCIENCE CHINA-MATERIALS , 2024 , 67 (11) , 3553-3560 . |
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Forward bias voltage is utilized to regulate ion migration in perovskite solar cells（PSCs），thereby preventing the accumulation of perovskite ions at the interface，passivating defects，and restoring the performance of aged PSCs. The power conversion efficiency（PCE）of the aged PSCs is restored from 17.8% to 21.5% by implementing the forward bias voltage repair method. Introducing the bias voltage repair method in the maximum power point tracking for 100 hours yielded a total energy gain of 3.1%. An independently constructed integrated characterization environment was used to measure the real- time changes in the electrical and optical characteristics of PSCs before and after the repair process using bias voltage. Furthermore，a physical model was developed to investigate the mechanism behind the repair process，specifically focusing on the regulation of perovskite ion migration by bias voltage. The results demonstrate that the repairing strategy can control ion migration，passivate defects，optimize carrier extraction and transport，and ultimately repair the PSCs. © 2024 Science Press. All rights reserved.
Keyword ：
Bias voltage Bias voltage Conversion efficiency Conversion efficiency Defects Defects Ions Ions Maximum power point trackers Maximum power point trackers Perovskite Perovskite Perovskite solar cells Perovskite solar cells
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| GB/T 7714 | Zheng, Zhijiang , Wang, Renjie , Huang, Shaobiao et al. INVESTIGATION OF REPAIRING PEROVSKITE SOLAR CELLS VIA FORWARD BIAS VOLTAGE [J]. | Acta Energiae Solaris Sinica , 2024 , 45 (4) : 59-64 . |
| MLA | Zheng, Zhijiang et al. "INVESTIGATION OF REPAIRING PEROVSKITE SOLAR CELLS VIA FORWARD BIAS VOLTAGE" . | Acta Energiae Solaris Sinica 45 . 4 (2024) : 59-64 . |
| APA | Zheng, Zhijiang , Wang, Renjie , Huang, Shaobiao , Hang, Chenwang , Wu, Jionghua , Cheng, Shuying . INVESTIGATION OF REPAIRING PEROVSKITE SOLAR CELLS VIA FORWARD BIAS VOLTAGE . | Acta Energiae Solaris Sinica , 2024 , 45 (4) , 59-64 . |
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钙钛矿太阳能电池(PSC)因其高吸收系数、带隙可调、长载流子寿命等优点而备受关注。目前,PSC的光电转换效率(PCE)已从2009年的3.8%提高到目前的认证效率26.1%,但其高效率器件的制备通常伴随过量Pb I2而引发稳定性与缺陷的问题。为了应对这些挑战,我们采用阴离子与阳离子双功能添加剂—三氟乙酸苯乙胺(PEATFA)来协同钝化PSC。其中,PEA+有助于形成2D钙钛矿结构,TFA-则有效钝化未配位Pb2+及I空位缺陷,在没有过量Pb I2的情况下提高钙钛矿的晶体质量。此外,PEATFA改性优化了钙钛矿层和电荷传输层之间的能级匹配,增强电荷的转移和提取能力。最终,PEATFA改性器件实现了24.05%的高PCE,同时表现出极小的迟滞现象和良好的稳定性。
Keyword ：
2D钙钛矿 2D钙钛矿 双功能添加剂 双功能添加剂 钙钛矿太阳能电池 钙钛矿太阳能电池 钝化缺陷 钝化缺陷
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| GB/T 7714 | 吴炯桦 , 王仁杰 , 李一明 . 双功能添加剂策略用于高效稳定的钙钛矿太阳能电池 [C] //第四届全国太阳能电池材料与器件大会 . 2024 . |
| MLA | 吴炯桦 et al. "双功能添加剂策略用于高效稳定的钙钛矿太阳能电池" 第四届全国太阳能电池材料与器件大会 . (2024) . |
| APA | 吴炯桦 , 王仁杰 , 李一明 . 双功能添加剂策略用于高效稳定的钙钛矿太阳能电池 第四届全国太阳能电池材料与器件大会 . (2024) . |
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