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学者姓名：张彩霞
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Abstract ：
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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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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Abstract ：
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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Constructing 2D/3D perovskite heterostructures with organic molecules is key to improving the power conversion efficiency (PCE) and stability of perovskite solar cells (PSCs). However, a comprehensive understanding of the inhibitory relationship between the 2D perovskite layer and ion migration at the interface is still lacking. In this study, we use different alkyl ammonium iodides to build 2D/3D perovskite heterostructures. The research results show that both the chain length of alkyl and amino group count in alkyl ammonium iodide can significantly affect the crystal structure orientation of the 2D perovskite layer. A Dion-Jacobson (DJ) 2D/3D structure treated with ODADI shows superior defect passivation and carrier extraction, leading to PSCs with a 24.51 % PCE. Furthermore, the perovskite based on ODA cations eliminates the influence of Van der Waals interaction in perovskite based on BA or OA cations, which improves the stability of the lattice structure, and significantly inhibits ion migration. Therefore, after a maximum power point stability test of 1500 h, devices retain approximately 88 % of their initial PCE. This work offers fresh insights into optimizing interfaces in 2D/3D PSCs by selecting suitable organic molecules. © 2024
Keyword ：
Conversion efficiency Conversion efficiency Crystal orientation Crystal orientation Defects Defects Molecules Molecules Passivation Passivation Perovskite Perovskite Perovskite solar cells Perovskite solar cells Positive ions Positive ions Stability Stability Van der Waals forces Van der Waals forces
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| GB/T 7714 | Wang, Renjie , Li, Yiming , Zhu, Jingwei et al. A comparative study of alkylammonium halide interface modification for high efficiency and ion migration stability perovskite solar cells [J]. | Materials Today Physics , 2024 , 45 . |
| MLA | Wang, Renjie et al. "A comparative study of alkylammonium halide interface modification for high efficiency and ion migration stability perovskite solar cells" . | Materials Today Physics 45 (2024) . |
| APA | Wang, Renjie , Li, Yiming , Zhu, Jingwei , Zheng, Qiao , Deng, Hui , Zhang, Caixia et al. A comparative study of alkylammonium halide interface modification for high efficiency and ion migration stability perovskite solar cells . | Materials Today Physics , 2024 , 45 . |
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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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The severe carrier recombination at the CZTSSe/CdS heterojunction interface and high toxicity of Cd limit the further development of flexible Cu2ZnSn(S, Se)4 (CZTSSe) solar cells. Here, we apply a suitable and environmentally friendly Zn1-xSnxO (ZTO) buffer layer to suppress the interface recombination in the flexible solar cell for the first time. The ZTO buffer layers with good qualities have been successfully obtained by varying the Sn/(Zn + Sn) value. The solar cell has obtained an efficiency of 8.7%, which is the highest efficiency reported for a Cd-free flexible CZTSSe solar cell so far. The optimal device has more ideal diode parameter values, indicating that the interface quality is significantly improved. The VOC-T characteristic demonstrates that the interfacial recombination of flexible ZTO devices has been greatly reduced. The theoretical simulations show that the flexible CZTSSe devices with optimal ZTO layers achieve good band alignment to reduce the interface recombination, elucidating the intrinsic link between the band structure and the device performance. This investigation provides a solution to achieve environmentally friendly and efficient flexible CZTSSe solar cells by designing the interface engineering of the absorber/buffer heterojunction in solar cells.
Keyword ：
CZTSSe CZTSSe flexible solar cell flexible solar cell interface engineering interface engineering ZTO buffer layer ZTO buffer layer
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| GB/T 7714 | Lin, Beibei , Sun, Quanzhen , Zhang, Caixia et al. Efficient Cd-Free Flexible CZTSSe Solar Cells with Quality Interfaces by Using the Zn1-XSnXO Buffer Layer br [J]. | ACS APPLIED ENERGY MATERIALS , 2023 . |
| MLA | Lin, Beibei et al. "Efficient Cd-Free Flexible CZTSSe Solar Cells with Quality Interfaces by Using the Zn1-XSnXO Buffer Layer br" . | ACS APPLIED ENERGY MATERIALS (2023) . |
| APA | Lin, Beibei , Sun, Quanzhen , Zhang, Caixia , Deng, Hui , Li, Yaling , Xie, Weihao et al. Efficient Cd-Free Flexible CZTSSe Solar Cells with Quality Interfaces by Using the Zn1-XSnXO Buffer Layer br . | ACS APPLIED ENERGY MATERIALS , 2023 . |
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The traditional CdS buffer layers in flexible CZTSSe solar cells lead to light absorption losses and environmental pollution problems. Therefore, the study of Cd-free buffer layer is very important for the realization of environmentally friendly and efficient CZTSSe solar cells. The Zn1-x Mg x O (ZnMgO) and Zn1-x Sn x O (ZnSnO) alternate buffer layers are studied in this study using the simulation package solar cell capacitance simulator (SCAPS-1D) numerical simulation model, and the theoretical analysis is further verified by the results of the experiments. We simulate the performance of CZTSSe/ZnXO (X = Mg/Sn) heterojunction devices with different Mg/(Zn+Mg) and Sn/(Zn+Sn) ratios and analyze the intrinsic mechanism of the effect of conduction band offsets (CBO) on the device performance. The simulation results show that the CZTSSe/ZnXO (X = Mg/Sn) devices achieve optimal performance with a small "spike" band or "flat" band at Mg and Sn doping concentrations of 0.1 and 0.2, respectively. To investigate the potential of Zn0.9Mg0.1O and Zn0.8Sn0.2O as alternative buffer layers, carrier concentrations and thicknesses are analyzed. The simulation demonstrates that the Zn0.9Mg0.1O device with low carrier concentration has a high resistivity, serious carrier recombination, and a greater impact on performance from thickness variation. Numerical simulations and experimental results show the potential of the ZnSnO buffer layer as an alternative to toxic CdS, and the ZnMgO layer has the limitation as a substitute buffer layer. This paper provides the theoretical basis and experimental proof for further searching for a suitable flexible CZTSSe Cd-free buffer layer.
Keyword ：
Cd-free buffer Cd-free buffer heterojunction interface heterojunction interface numerical simulation numerical simulation ZnMgO ZnMgO ZnSnO ZnSnO
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| GB/T 7714 | Zhang, Caixia , Li, Yaling , Lin, Beibei et al. Micro-mechanism study of the effect of Cd-free buffer layers ZnXO (X = Mg/Sn) on the performance of flexible Cu2ZnSn(S, Se)(4) solar cell [J]. | CHINESE PHYSICS B , 2023 , 32 (2) . |
| MLA | Zhang, Caixia et al. "Micro-mechanism study of the effect of Cd-free buffer layers ZnXO (X = Mg/Sn) on the performance of flexible Cu2ZnSn(S, Se)(4) solar cell" . | CHINESE PHYSICS B 32 . 2 (2023) . |
| APA | Zhang, Caixia , Li, Yaling , Lin, Beibei , Tang, Jianlong , Sun, Quanzhen , Xie, Weihao et al. Micro-mechanism study of the effect of Cd-free buffer layers ZnXO (X = Mg/Sn) on the performance of flexible Cu2ZnSn(S, Se)(4) solar cell . | CHINESE PHYSICS B , 2023 , 32 (2) . |
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The tandem organic solar cell could absorb the complementarity sunlight spectra by the sub-cells based on the different energy gap of the active-layer materials. In this work, a wide-band gap of the organic material PTB7-Th: PC71BM is used as the front sub-cells active layer, and the narrow-band gap of PTB7-Th: IEICO-4F is used as the rear sub-cells active layer. The front and rear sub-cells present the complementary absorption spectra leading to the sufficiently improvement of the sunlight absorption. MoO3/Au/ZnO multilayer film is the interconnecting layer. ZnO film was prepared by the sputtering method is smaller root-mean-square than that of the film prepared by the solution synthesis, resulting in a good contact interfacial between the sub-cells. This is in favor of the J(SC) and FF of the tandem organic solar cell. Importantly, the short-circuit current density of the tandem solar cell is handily controlled by the active-layer concentration of the front sub-cell, the tandem cell exhibits an optimal PCE of 11.77% with a large V-OC of 1.45 V.
Keyword ：
Active-layer concentration Active-layer concentration Interconnecting layer Interconnecting layer Open circuit voltage Open circuit voltage Sunlight absorption Sunlight absorption Tandem organic solar cell Tandem organic solar cell
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| GB/T 7714 | Zheng, Qiao , Huang, Jingang , Chen, Pengsen et al. Tandem organic solar cells with a large V-OC by control of the active-layer concentration [J]. | APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING , 2023 , 129 (4) . |
| MLA | Zheng, Qiao et al. "Tandem organic solar cells with a large V-OC by control of the active-layer concentration" . | APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING 129 . 4 (2023) . |
| APA | Zheng, Qiao , Huang, Jingang , Chen, Pengsen , Du, Shunli , Zhou, Hui , Sun, Quanzhen et al. Tandem organic solar cells with a large V-OC by control of the active-layer concentration . | APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING , 2023 , 129 (4) . |
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Flexible Cu2ZnSn(S, Se)(4) (CZTSSe) solar cells have the advantages of nontoxicity and low cost, showing great commercial potential in wearable devices, indoor photovoltaics, and building-integrated photovoltaics. Currently, the performances of flexible CZTSSe devices still faces a huge gap on the commercialization level. Herein, the development of flexible CZTSSe devices to provide the challenges is summarized and possible strategies are explored. During the past ten years of research, flexible CZTSSe devices' efficiency has increased to 11.19% through studies of flexible substrates, residual stress, deposition processes, and physics. However, the improvement of efficiency is facing large challenges in severe open-circuit voltage loss and low fill factor. After solving the issues by the strategies of deep-level defect passivation and interface optimization, the efficiency of flexible CZTSSe solar cells is expected to reach the commercial level.
Keyword ：
challenges challenges CZTSSe CZTSSe flexible solar cells flexible solar cells substrates substrates
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| GB/T 7714 | Xie, Weihao , Yan, Qiong , Sun, Quanzhen et al. A Progress Review on Challenges and Strategies of Flexible Cu2ZnSn(S, Se)(4) Solar Cells [J]. | SOLAR RRL , 2023 , 7 (4) . |
| MLA | Xie, Weihao et al. "A Progress Review on Challenges and Strategies of Flexible Cu2ZnSn(S, Se)(4) Solar Cells" . | SOLAR RRL 7 . 4 (2023) . |
| APA | Xie, Weihao , Yan, Qiong , Sun, Quanzhen , Li, Yifan , Zhang, Caixia , Deng, Hui et al. A Progress Review on Challenges and Strategies of Flexible Cu2ZnSn(S, Se)(4) Solar Cells . | SOLAR RRL , 2023 , 7 (4) . |
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Antimony sulfide (Sb2S3) with a 1D molecular structure has strong bending characteristics, showing great application potential in flexible devices. Herein, the flexible substrate-structured Sb2S3 solar cells is developed and improve device performances by the back interface selenization. The high-quality Sb2S3 film with an optimal thickness of 1.8 mu m, ensuring efficient spectra utilization, is deposited on flexible Mo foils by the rapid thermal evaporation technique. To solve the issues of back interfacial recombination and charge transport, the 20 nm MoSe2 layer between Sb2S3 film and Mo foil is fabricated by substrate selenization in the tube furnace. Further investigations indicate that the MoSe2 layer improves the interfacial energy band alignments and induces the [hk1] orientation of Sb2S3 film, thereby passivating defects and enhancing the carrier transport capacity. The flexible solar cell in the structure of Mo foil/MoSe2/Sb2S3/CdS/ITO/Ag, exhibiting good flexibility to stand thousands of bending, achieves an efficiency of 3.75%, which is the highest for Sb2S3 devices in substrate configuration. The presented flexible structure and back interfacial selenization study will provide new prospects for inorganic Sb2S3 thin film solar cells.
Keyword ：
flexible flexible MoSe2 MoSe2 orientations orientations Sb2S3 solar cells Sb2S3 solar cells substrate configurations substrate configurations
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| GB/T 7714 | Deng, Hui , Cheng, Yingshun , Chen, Zekun et al. Flexible Substrate-Structured Sb2S3 Solar Cells with Back Interface Selenization [J]. | ADVANCED FUNCTIONAL MATERIALS , 2023 , 33 (12) . |
| MLA | Deng, Hui et al. "Flexible Substrate-Structured Sb2S3 Solar Cells with Back Interface Selenization" . | ADVANCED FUNCTIONAL MATERIALS 33 . 12 (2023) . |
| APA | Deng, Hui , Cheng, Yingshun , Chen, Zekun , Lin, Xiao , Wu, Jionghua , Zheng, Qiao et al. Flexible Substrate-Structured Sb2S3 Solar Cells with Back Interface Selenization . | ADVANCED FUNCTIONAL MATERIALS , 2023 , 33 (12) . |
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