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学者姓名：王伟煌
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Abstract ：
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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Efficient ternary organic solar cells were achieved by utilizing an ultra-narrow bandgap material, IEICO-4 F, mixed with the fullerene material PC71BM as the acceptor and PTB7-Th polymer as the donor. The different weights of IEICO-4 F were dropped into the active layer to adjust the ratio of acceptor and donor, optimizing the performance of the cells. The results showed the ternary organic solar cells with 10wt% IEICO-4 F could obtain a higher short-circuit current density resulting in the power conversion efficiency (PCE) up to 9.56%. MoO3/Ag/MoO3 as the transparent electrodes of the semitransparent organic solar cell (ST-OSCs) were prepared. The different thicknesses of Ag impacts on the performance of the ST-OSCs were investigated. The PCE of the ternary ST-OSCs was increased to 7.34% and the average visible light transmittance (AVT) was increased to 28.74% when Ag was 10 nm thickness. The ternary ST-OSCs presented both a good light transmittance and a high PCE. In addition, the light utilization efficiency of the ST-OSCs was increased to 2.1%, and the color reproduction index was improved too. The PCE and AVT of the ST-OSCs could improve simultaneously due to the appropriate ratio of the acceptor and donor as well as the optimized transparent electrodes.
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| GB/T 7714 | Zheng, Qiao , Zhou, Hui , Du, Shunli et al. Efficiency and average visible light transmittance improved simultaneously of the semitransparent organic solar cells [J]. | JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS , 2024 , 35 (6) . |
| MLA | Zheng, Qiao et al. "Efficiency and average visible light transmittance improved simultaneously of the semitransparent organic solar cells" . | JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS 35 . 6 (2024) . |
| APA | Zheng, Qiao , Zhou, Hui , Du, Shunli , Chen, Pengsen , Huang, Jingang , Deng, Hui et al. Efficiency and average visible light transmittance improved simultaneously of the semitransparent organic solar cells . | JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS , 2024 , 35 (6) . |
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The high photovoltaic conversion efficiency (PCE) of ternary organic solar cells (OSCs) based on PTB7-Th, PC71BM and IEICO-4F material is obtained, the short-circuit current density (J SC), fill factor (FF), and open-circuit voltage is 25.90 mA cm-2, 73.20% and 0.71 V, respectively. PCE is as high as 13.53%. It is the highest PCE of ternary OSCs based on PTB7-Th, PC71BM and IEICO-4F materials for all we know. The narrow bandgap material of IEICO-4F is deposited on PTB7-Th:PC71BM bulk heterojunction (BHJ) by layer-by-layer process. We constructed the dual bandgap active layer both BHJ and pseudo-planar heterojunction (P-PHJ), it could be defined as ternary BHJ/P-PHJ of OSCs. This type of OSCs is not only the complementary bandgap material of the active layer, but also increasing the donor/acceptor (D/A) interface. The excitons generation and collection of the device are increased leading a higher J SC and FF. The semitransparent OSCs (ST-OSCs) is prepared by varying the thickness of Ag electrode and PCE can reach 9.70%, and the average visible light transmittance and light use efficiency of ST-OSCs are improved effectively.
Keyword ：
bulk heterojunction bulk heterojunction donor/acceptor interface donor/acceptor interface dual bandgap active layer dual bandgap active layer layer-by-layer layer-by-layer pseudo-planar heterojunction pseudo-planar heterojunction ternary organic solar cells ternary organic solar cells
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| GB/T 7714 | Zheng, Qiao , Zhou, Hui , Guo, Zhaohuang et al. Improved performance of ternary organic solar cells based on both bulk and pseudo-planar heterojunction active layer [J]. | JOURNAL OF PHYSICS D-APPLIED PHYSICS , 2024 , 57 (31) . |
| MLA | Zheng, Qiao et al. "Improved performance of ternary organic solar cells based on both bulk and pseudo-planar heterojunction active layer" . | JOURNAL OF PHYSICS D-APPLIED PHYSICS 57 . 31 (2024) . |
| APA | Zheng, Qiao , Zhou, Hui , Guo, Zhaohuang , Zhuang, Jinyong , Deng, Hui , Wu, Jionghua et al. Improved performance of ternary organic solar cells based on both bulk and pseudo-planar heterojunction active layer . | JOURNAL OF PHYSICS D-APPLIED PHYSICS , 2024 , 57 (31) . |
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Perovskite solar cells have gradually become the most attractive alternative for next-generation photovoltaic devices due to their excellent photovoltaic conversion efficiencies and low manufacturing costs. Defect engineering is an essential topic for improving the performance of perovskite devices. In this study, we utilize a bifunctional alkylamine sulfonate to modify the perovskite interfaces. The TsO- of sulfonates coordinates with Pb2+, while -NH2 of alkylamine forms hydrogen bonds with iodine, which reduces charge recombination and improves energy level arrangement. The molecular size and the alkylamine's dielectric constant significantly influence the interface modification performance. For the champion device with BATsO treatment, there is an enhancement in both the fill factor and the open-circuit voltage, resulting in a power conversion efficiency (PCE) of 23.53%. After 400 h of working condition, the device maintains roughly 90.40% of its initial efficiency. Therefore, this study postulates that modifying bifunctional alkylamine sulfonates could effectively enhance the PSC's performance.
Keyword ：
Double -functional additive Double -functional additive Passivation defects Passivation defects Perovskite solar cells Perovskite solar cells
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| GB/T 7714 | Huang, Shaobiao , Wang, Renjie , Zheng, Qiao et al. Optimal interfacial engineering with different bifunctional alkylamine sulfonates for efficient perovskite solar cells [J]. | SOLAR ENERGY MATERIALS AND SOLAR CELLS , 2024 , 270 . |
| MLA | Huang, Shaobiao et al. "Optimal interfacial engineering with different bifunctional alkylamine sulfonates for efficient perovskite solar cells" . | SOLAR ENERGY MATERIALS AND SOLAR CELLS 270 (2024) . |
| APA | Huang, Shaobiao , Wang, Renjie , Zheng, Qiao , Deng, Hui , Zhang, Caixia , Wang, Weihuang et al. Optimal interfacial engineering with different bifunctional alkylamine sulfonates for efficient perovskite solar cells . | SOLAR ENERGY MATERIALS AND SOLAR CELLS , 2024 , 270 . |
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Antimony selenosulfide (Sb-2(S,Se)(3)) solar cells have achieved an efficiency of over 10.0%. However, the uncontrollable hydrothermal process makes preparing high-quality Sb-2(S,Se)(3) thin films a bottleneck for efficient Sb-2(S,Se)(3) solar cell. To address this problem, triethanolamine (TEA) additive is innovatively utilized to regulate the reaction kinetic process of Sb-2(S,Se)(3) thin films in this work. The results show that TEA chelator can realize the time-domain control of the reaction process, optimizing the Se/(S+Se) elemental distribution of Sb-2(S,Se)(3) thin film and shrinking the bandgap offset of Sb-2(S,Se)(3) thin film. Meanwhile, the (021) and (061) crystal orientation of Sb-2(S,Se)(3) thin film are enhanced and the harmful V-Se1 defects in Sb-2(S,Se)(3) solar cells are passivated. Interestingly, a uniform back surface gradient for Sb-2(S,Se)(3) thin film is formed to reduce the minority carrier recombination at the back contact, increase the photocurrent and decrease the diode current of Sb-2(S,Se)(3) solar cells. Finally, the J(sc) and FF of Sb-2(S,Se)(3) solar cells are significantly improved by 8.6% and 5.5% respectively, and the open-circuit voltage deficit of the device is reduced by 44 mV, which leads to an efficiency of 9.94% which is the highest values of Sb-2(S,Se)(3) solar cells by sodium selenosulfate system.
Keyword ：
additive additive hydrothermal deposition hydrothermal deposition reaction kinetic reaction kinetic Sb-2(S, Se)(3) solar cells Sb-2(S, Se)(3) solar cells sodium selenosulfate sodium selenosulfate
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| GB/T 7714 | Zhu, Qiqiang , Wang, Weihuang , Chen, Zhirong et al. Fabricating High-Efficiency Sb2(S,Se)3 Solar Cells by Novel Additive-Assisted Longitudinal Component Engineering [J]. | SMALL , 2024 . |
| MLA | Zhu, Qiqiang et al. "Fabricating High-Efficiency Sb2(S,Se)3 Solar Cells by Novel Additive-Assisted Longitudinal Component Engineering" . | SMALL (2024) . |
| APA | Zhu, Qiqiang , Wang, Weihuang , Chen, Zhirong , Cao, Zixiu , Wang, Weiyu , Feng, Xinxin et al. Fabricating High-Efficiency Sb2(S,Se)3 Solar Cells by Novel Additive-Assisted Longitudinal Component Engineering . | SMALL , 2024 . |
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Sb2Se3 solar cells have achieved a power conversion efficiency (PCE) of over 10%. However, the serious open-circuit voltage deficit (VOC-deficit), induced by the hard-to-control crystal orientation and heterojunction interface reaction, limits the PCE of vapor transport deposition (VTD) processed Sb2Se3 solar cells. To overcome the VOC-deficit problem of VTD processed Sb2Se3 solar cells, herein, an in-situ bandgap regulation strategy is innovatively proposed to prepare a wide band gap Sb2(S,Se)3 seed layer (WBSL) at CdS/Sb2Se3 heterojunction interface to improve the PCE of Sb2Se3 solar cells. The analysis results show that the introduced Sb2(S,Se)3 seed layer can enhance the [001] orientation of Sb2Se3 thin films, broaden the band gap of heterojunction interface, and realize a "Spike-like" conduction band alignment with DEc= 0.11 eV. In addition, thanks to the suppressed CdS/Sb2Se3 interface reaction after WBSL application, the depletion region width of Sb2Se3 solar cells is widened, and the quality of CdS/Sb2Se3 interface and the carrier transporting performance of Sb2Se3 solar cells are significantly improved as well. Moreover, the harmful Se vacancy defects near the front interface of Sb2Se3 solar cells can be greatly diminished by WBSL. Finally, the PCE of Sb2Se3 solar cells is improved from 7.0% to 7.6%; meanwhile the V OC is increased to 466 mV which is the highest value for the VTD derived Sb2Se3 solar cells. This work will provide a valuable reference for the interface and orientation regulation of antimony-based chalcogenide solar cells. (c) 2024 Science Press Published by Elsevier B.V. All rights are reserved, including those for text and data mining, AI training, and similar technologies.
Keyword ：
Band gap alignment Band gap alignment Carrier transport Carrier transport Crystal orientation Crystal orientation Open circuit voltage deficit Open circuit voltage deficit Seed-layer Seed-layer
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| GB/T 7714 | Jiang, Yanting , Wang, Weiyu , Chen, Zhirong et al. In situ seed layer bandgap engineering leading to the conduction band offset reversion and efficient Sb2Se3 solar cells with high open-circuit [J]. | JOURNAL OF ENERGY CHEMISTRY , 2024 , 101 : 201-212 . |
| MLA | Jiang, Yanting et al. "In situ seed layer bandgap engineering leading to the conduction band offset reversion and efficient Sb2Se3 solar cells with high open-circuit" . | JOURNAL OF ENERGY CHEMISTRY 101 (2024) : 201-212 . |
| APA | Jiang, Yanting , Wang, Weiyu , Chen, Zhirong , Fang, Zhenyu , Zhu, Qiqiang , Zheng, Qiao et al. In situ seed layer bandgap engineering leading to the conduction band offset reversion and efficient Sb2Se3 solar cells with high open-circuit . | JOURNAL OF ENERGY CHEMISTRY , 2024 , 101 , 201-212 . |
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Antimony sulfide (Sb2S3) photodetectors (PDs) possess extensive application prospects. Efficient carrier transport of a PD significantly affects the detectivity and response speed. Herein, we propose an all-inorganic self-powered Sb2S3 PD based on vertical TiO2 nanorods (NRs). The spray-coated 15-nm TiO2 thin film as a seed layer ensures the growth of compact vertical TiO2 nanorod arrays by the hydrothermal method. One-dimensional TiO2 nanorods facilitate photocarrier separation and transport to enhance device performance. Ultimately, the Sb2S3 PD achieves a responsivity of 0.29 A/W, a specific detectivity of 3.37 x 1012 Jones, and a response time of 7.8 mu s, showing great potential in commercial applications. (c) 2024 Optica Publishing Group. All rights, including for text and data mining (TDM), Artificial Intelligence (AI) training, and similar technologies, are reserved.
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| GB/T 7714 | Kang, Yubin , Deng, Hui , Wu, Kefei et al. Self-powered Sb2S3 photodetectors with efficient carrier transport enabled by compact vertical TiO2 nanorods [J]. | OPTICS LETTERS , 2024 , 49 (22) : 6533-6536 . |
| MLA | Kang, Yubin et al. "Self-powered Sb2S3 photodetectors with efficient carrier transport enabled by compact vertical TiO2 nanorods" . | OPTICS LETTERS 49 . 22 (2024) : 6533-6536 . |
| APA | Kang, Yubin , Deng, Hui , Wu, Kefei , Wang, Guidong , Hong, Jinwei , Wang, Weihuang et al. Self-powered Sb2S3 photodetectors with efficient carrier transport enabled by compact vertical TiO2 nanorods . | OPTICS LETTERS , 2024 , 49 (22) , 6533-6536 . |
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The quality of P-N heterojunction is crucial for the performance of antimony selenide (Sb2Se3) solar cells and thus attracting urgent attention. In this work, the monovalent cation Ag+ is doped in CdS, which enhances the N-type conductivity of CdS film anomalously and reduces its parasitic absorption simultaneously. Furthermore, Ag doping of CdS promotes the diffusion of Cd into the Sb2Se3 layer, forming CdSb defects, which enhances the P-type conductivity of Sb2Se3 and reduces the density of deep-level centers. With further chemical etching treatment on the CdS surface, the quality of the CdS/Sb2Se3 P-N heterojunction is distinctly improved, making the energy band alignment of CdS/Sb2Se3 more favorable for carrier transportation. Finally, a remarkable efficiency of 8.14%, which is the highest efficiency among those with Jsc of 30.96 mA cm-2, is achieved for vapor transport deposition processed Sb2Se3 solar cells. This work provides a strategy to simultaneously optimize the CdS and Sb2Se3 functional layers and enhance the quality of P-N heterojunction for efficient Sb2Se3 solar cells.
Keyword ：
defect modulation defect modulation P-N heterojunction modulation P-N heterojunction modulation Sb2Se3 solar cell Sb2Se3 solar cell vapor transport deposition vapor transport deposition
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| GB/T 7714 | Cao, Zixiu , Shao, Bin , Ye, Zhaoqing et al. Anomalous Electron Doping in CdS to Promote the Efficiency Improvement in Sb2Se3 Thin Film Solar Cells [J]. | ADVANCED FUNCTIONAL MATERIALS , 2024 , 35 (16) . |
| MLA | Cao, Zixiu et al. "Anomalous Electron Doping in CdS to Promote the Efficiency Improvement in Sb2Se3 Thin Film Solar Cells" . | ADVANCED FUNCTIONAL MATERIALS 35 . 16 (2024) . |
| APA | Cao, Zixiu , Shao, Bin , Ye, Zhaoqing , Liu, Chuanyu , Li, Zhiqiang , Dong, Jiabin et al. Anomalous Electron Doping in CdS to Promote the Efficiency Improvement in Sb2Se3 Thin Film Solar Cells . | ADVANCED FUNCTIONAL MATERIALS , 2024 , 35 (16) . |
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Perovskite solar cells (PSCs) efficiency has recently achieved significant advancements, surpassing the 26% threshold. Excessive PbI2, often used in high-efficiency PSCs, will also cause stability or defect problems. To address these challenges, we introduce anionic and cationic bifunctional additives to passivate PSCs synergistically. Phenylethylamine trifluoroacetate (PEATFA) is utilized as an additive to passivate the perovskite film. The PEA(+) cation facilitates the formation of two-dimensional perovskite while TFA(-) anion passivate the uncoordinated Pb2+ ions and iodine vacancies, enhancing perovskite crystal quality without excess PbI2. Furthermore, PEATFA modification optimizes the energy level matching between the perovskite and charge transfer layers, thereby enhancing charge transfer and extraction capabilities. Finally, the device achieves an impressive power conversion efficiency of 24.05% while exhibiting minimal hysteresis and good stability.
Keyword ：
double-functional additive double-functional additive passivation defects passivation defects perovskite solar cells perovskite solar cells phenethylamine trifluoroacetate phenethylamine trifluoroacetate
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| GB/T 7714 | Wu, Jionghua , Hang, Chenwang , Wang, Renjie et al. Double-functional additive strategy for efficient perovskite solar cells [J]. | SCIENCE CHINA-MATERIALS , 2024 , 67 (8) : 2628-2636 . |
| MLA | Wu, Jionghua et al. "Double-functional additive strategy for efficient perovskite solar cells" . | SCIENCE CHINA-MATERIALS 67 . 8 (2024) : 2628-2636 . |
| APA | Wu, Jionghua , Hang, Chenwang , Wang, Renjie , Zheng, Qiao , Deng, Hui , Zhang, Caixia et al. Double-functional additive strategy for efficient perovskite solar cells . | SCIENCE CHINA-MATERIALS , 2024 , 67 (8) , 2628-2636 . |
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Antimony sulfide (Sb2S3) solar cells fabricated via hydrothermal deposition have attracted widespread attention. The annealing crystallization process plays a crucial role in achieving optimal crystallinity in hydrothermal Sb2S3 thin films. Nevertheless, incomplete crystallization and the loss of sulfur at high-temperature contribute to defect recombination, constraining device performance. Herein, a two-step rapid thermal processing (RTP) annealing strategy is proposed to improve the crystal quality and efficiency of Sb2S3 solar cells. The annealing process in Ar protection with atmospheric pressure can suppress S loss caused by saturated vapor pressure. The two-step RTP annealing with the 330 degrees C low-temperature and 370 degrees C high-temperature process ensures high crystallinity and vertical orientations of Sb2S3 thin films, accompanied by a reduction in defect concentration from 1.01 x 10(12) to 5.97 x 10(11) cm(-3). The Sb2S3 solar cell achieves an efficiency of 8.20% with an enhanced open circuit voltage (V-OC) of 784 mV. The build-in voltage (V-bi) of 1.17 V and irradiation-dependent ideal factor (n) of 1.48 demonstrate enhanced heterojunction quality and suppressed defect recombination in the devices. The presented two-step annealing strategy and physical mechanism study will open new prospects for high-performance Sb2S3 solar cells.
Keyword ：
defect passivation defect passivation hydrothermal hydrothermal Sb2S3 solar cells Sb2S3 solar cells two-step annealing two-step annealing
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| GB/T 7714 | Deng, Hui , Feng, Xinxin , Zhu, Qiqiang et al. 8.2%-Efficiency hydrothermal Sb2S3 thin film solar cells by two-step RTP annealing strategy [J]. | SCIENCE CHINA-MATERIALS , 2024 , 67 (11) : 3666-3674 . |
| MLA | Deng, Hui et al. "8.2%-Efficiency hydrothermal Sb2S3 thin film solar cells by two-step RTP annealing strategy" . | SCIENCE CHINA-MATERIALS 67 . 11 (2024) : 3666-3674 . |
| APA | Deng, Hui , Feng, Xinxin , Zhu, Qiqiang , Liu, Yonghao , Wang, Guidong , Zhang, Caixia et al. 8.2%-Efficiency hydrothermal Sb2S3 thin film solar cells by two-step RTP annealing strategy . | SCIENCE CHINA-MATERIALS , 2024 , 67 (11) , 3666-3674 . |
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