Article
Chemistry, Physical
Ruqi Chen, Zhiwei Liang, Wenjing Feng, Xubo Hu, Aize Hao
Summary: The all-inorganic CsPbBr3 perovskite thin films exhibit good optoelectronic properties with smooth surface and photoluminescence emission, and the fabricated photodetector shows fast photoresponse speed and short decay time.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Multidisciplinary
Han Zhao, Kang Ma, Jianmin Li, Yikai Fu, Ying Qin, Dongbing Zhao, Haitao Dai, Zhixin Hu, Zhixiang Sun, Hong-Ying Gao
Summary: This study investigates the surface properties and defects of organic-inorganic hybrid perovskite materials using low-temperature scanning tunneling microscopy. Atomic-resolution imaging reveals flat surface structures, atomic steps, and crystal grain boundaries, while defects are characterized. It is also observed that tip scanning induces the migration of surface iodine ions, leading to the instability of the surface iodine lattice structure.
Review
Chemistry, Multidisciplinary
Zahra Saki, Mahdi Malekshahi Byranvand, Nima Taghavinia, Mayank Kedia, Michael Saliba
Summary: This article discusses the latest developments in perovskite solar cells (PSCs) and focuses on the challenges of achieving high-efficiency PSCs. The key factors in preparing perovskite thin films and large-scale production techniques are explored, with opportunities for commercialization highlighted.
ENERGY & ENVIRONMENTAL SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Diana Griesiute, Dovydas Karoblis, Lina Mikoliunaite, Aleksej Zarkov, Andrei N. Salak, Aivaras Kareiva
Summary: Polycrystalline Bi0.67La0.33Fe0.5Sc0.5O3 thin films were successfully synthesized using a cost-effective chemical solution deposition process, with the optimal annealing temperature determined to be 600 degrees C. The orientation of crystallites and film roughness were found to be influenced by the nature of the substrate, as observed in XRD patterns.
Article
Chemistry, Physical
Nisha Sarda, Arya Vidhan, Susmita Basak, Preetam Hazra, Tejmani Behera, Sudeshna Ghosh, Ram Janay Choudhary, Arindam Chowdhury, Shaibal K. Sarkar
Summary: We report a rapid photonic curing process for the fabrication of bilayer SnO2 thin films as electron transport layers in perovskite solar cells. The optimized efficiency of 21.1% and good stability were achieved. The photonic curing pulse parameters were found to significantly affect the device properties, and a correlation was established between the chemical properties of the cured SnO2 and the optoelectronic performance of the devices. The photonically cured SnO2 showed advantages in charge transport and interfacial recombination compared to thermally annealed ones. Furthermore, the process was successfully scaled up to a series-connected minimodule with 18.2% efficiency.
ACS APPLIED ENERGY MATERIALS
(2023)
Review
Chemistry, Physical
Fu Yang, Dongju Jang, Lirong Dong, Shudi Qiu, Andreas Distler, Ning Li, Christoph J. Brabec, Hans-Joachim Egelhaaf
Summary: This review summarized the progress and challenges of scalable technologies for solution-based coating and printing of perovskite PVs, including high-quality preparation, selection and deposition of charge extraction layers and electrodes, as well as proposed strategies and opportunities to promote the development of stable and efficient large-area perovskite PVs towards commercialization.
ADVANCED ENERGY MATERIALS
(2021)
Article
Chemistry, Physical
WooJun Seol, Gopinathan Anoop, Hyeonghun Park, Cheol Woong Shin, Jun Young Lee, Tae Yeon Kim, Wan Sik Kim, Hyunjin Joh, Shibnath Samanta, Ji Young Jo
Summary: In this study, V-doped ZnO thin films with high polarization values were successfully prepared by controlling crystallite size, morphology, and valence state of vanadium, opening up the possibility of utilizing ferroelectric VeZnO in particulate matter filtering devices. The study demonstrated the importance of crystalline properties and valence state of V in determining the ferroelectric and dielectric properties of VeZnO films, with potential applications in air filter coatings for efficient particulate matter filtration.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Multidisciplinary
Hamza Shaili, Elmehdi Salmani, Mustapha Beraich, M'hamed Taibi, Mustapha Rouchdi, Hamid Ez-Zahraouy, Najem Hassanain, Ahmed Mzerd
Summary: This study investigated the microstructural and optoelectronic properties of pure and Pr-doped SrSnO3 thin films synthesized by a two-step simple chemical solution deposition route. The results showed that Pr doping can enhance optical absorption and widen the bandgap of the samples.
Article
Materials Science, Ceramics
Alfredo Blazquez Martinez, Nicolas Godard, Naveen Aruchamy, Cosme Milesi-Brault, Oana Condurache, Andreja Bencan, Sebastjan Glinsek, Torsten Granzow
Summary: In this study, polycrystalline Mn and Ti co-doped BiFeO3 thin films were fabricated on platinized silicon substrates by a solution deposition method, with PbTiO3 nanocrystals used as a seed layer to induce a preferential (100) pseudocubic orientation. The introduction of a PbTiO3 seed layer significantly reduced the leakage current and resulted in excellent room-temperature ferroelectric properties in the thin films.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Chemistry, Physical
Razi Ahmad, Gautam Virender Nutan, Dinesh Singh, Govind Gupta, Udit Soni, Sameer Sapra, Ritu Srivastava
Summary: A strategy was proposed for the synthesis and purification of Cs2AgBiBr6 double perovskite nanocrystals, which remained stable even after washing with a polar solvent. The chemical and colloidal stability of Cs2AgBiBr6 was significantly improved by the efficient colloidal route involving stable precursors. Additionally, a compact and crack-free thin film of Cs2AgBiBr6 nanocrystals was successfully fabricated using a layer-by-layer solid-state ligand exchange technique, and perovskite solar cells were fabricated and tested.
Article
Chemistry, Multidisciplinary
Zhenyang Liu, Yingying Sun, Tong Cai, Hanjun Yang, JinXing Zhao, Tao Yin, Chaoqi Hao, Mingjun Chen, Wenwu Shi, Xiaoxiao Li, Li Guan, Xu Li, Xinzhong Wang, Aiwei Tang, Ou Chen
Summary: This study demonstrates the synthesis of 2D Cs2AgInxBi1-xCl6 alloyed double perovskite nanoplatelets with controlled morphology and composition. The obtained NPLs show unique optical properties and good stability, making them suitable for solution-processing in low-cost device manufacturing. Solution-processed light-emitting diodes using Cs2AgIn0.9Bi0.1Cl6 alloyed double perovskite NPLs as the emitting component exhibit good performance.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Hamed Sharifi Dehsari, Morteza Hassanpour Amiri, Kamal Asadi
Summary: Experimental realization of thin films with significant room-temperature magnetoelectric coupling coefficient α(ME) without an external DC magnetic field has been challenging. Here, large α(ME) of 750 +/- 30 mV Oe(-1) cm(-1) is achieved in multiferroic polymer nanocomposites (MPCs) thin films. The MPCs consist of PMMA-grafted cobalt-ferrite nanoparticles uniformly dispersed in piezoelectric polymer P(VDF-TrFE). Nanoparticle agglomeration is reduced by surface functionalization with PMMA, enabling the uniform dispersion of nanoparticles in submicrometer thin films. This research can promote the development of flexible and printable multiferroic electronic devices for sensing and memory applications.
Article
Materials Science, Multidisciplinary
Zhengxun Lai, Fei Wang, You Meng, Xiuming Bu, Xiaolin Kang, Quan Quan, Wei Wang, SenPo Yip, Chuntai Liu, Johnny C. Ho
Summary: This study presents a simple solution-process method for synthesizing lead-free halide double perovskites, showing superior film morphology and device performance compared to traditional methods. The Cs2AgBiBr6 microplatelet devices exhibit high responsivity and fast response speed, demonstrating potential for advanced device applications.
SCIENCE CHINA-MATERIALS
(2022)
Review
Physics, Applied
Xudong Liu, Jie Tu, Hangren Li, Jianjun Tian, Linxing Zhang
Summary: This paper introduces double perovskite ferroelectric thin films as a new material system with diverse composition and structure, providing new possibilities for the development of ferroelectric thin films. The ordered double perovskite ferroelectric thin films exhibit excellent ferroelectric, dielectric, magnetic, and optical properties, with potential applications in photovoltaic cells, information memory, and spintronic and photoelectric devices. However, complex internal physical mechanisms and difficult preparation conditions hinder its further development. This paper reviews the characterization methods and synthesis conditions affecting the ordering of double perovskite ferroelectrics, and presents the advances and challenges in various areas related to this material system.
APPLIED PHYSICS REVIEWS
(2023)
Article
Chemistry, Multidisciplinary
Xi Zhang, Wooseok Yang, Wenzhe Niu, Pardis Adams, Sebastian Siol, Zhenbin Wang, S. David Tilley
Summary: A cost-effective method was developed to prepare phase-pure crystalline Cu2S thin films, which showed excellent photoelectrochemical performance when coupled with CdS buffer layer, TiO2 protective layer, and RuOx catalyst, demonstrating high stability and promising potential for solar-driven hydrogen fuel production.
Article
Nanoscience & Nanotechnology
Biwas Subedi, Chongwen Li, Cong Chen, Dachang Liu, Maxwell M. Junda, Zhaoning Song, Yanfa Yan, Nikolas J. Podraza
Summary: The Urbach energy is a commonly used indicator of the electronic quality of thin-film materials in solar cells, and is influenced by the anion-cation composition. The correlation between the Urbach energy and the open-circuit voltage deficit of the perovskite thin film shows a direct relationship. However, some perovskite films show a lower Urbach energy but a higher open-circuit voltage deficit due to issues related to material quality and film processing techniques.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Suman Rijal, Deng-Bing Li, Rasha A. Awni, Chuanxiao Xiao, Sandip S. Bista, Manoj K. Jamarkattel, Michael J. Heben, Chun-Sheng Jiang, Mowafak Al-Jassim, Zhaoning Song, Yanfa Yan
Summary: A method to optimize the performance of Sb2Se3 thin-film solar cells by introducing a seed layer and post-treatment is introduced, resulting in the successful fabrication of Sb2Se3 planar heterojunction solar cells with high conversion efficiency.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Chenzhe Xu, Xiwen Chen, Shuangfei Ma, Mingyue Shi, Suicai Zhang, Zhaozhao Xiong, Wenqiang Fan, Haonan Si, Hualin Wu, Zheng Zhang, Qingliang Liao, Wanjian Yin, Zhuo Kang, Yue Zhang
Summary: The study utilized atomic models including grain boundaries to analyze the distribution of rubidium cations in perovskite structures, which was thoroughly identified using synchrotron-based grazing-incidence X-ray diffraction. This research sheds light on the subtle changes in Rb+ concentration and their impact on electronic defects, ion migration, and phase stability.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Zhaoning Song, Chongwen Li, Lei Chen, Yanfa Yan
Summary: Bifacial perovskite solar cells offer the potential for higher power output and enhanced durability compared to traditional devices, thanks to the unique optoelectronic properties of perovskite material and the use of transparent conducting oxide electrodes to prevent electrode corrosion. Despite the limitations and challenges, bifacial perovskite solar cells are increasingly seen as a viable commercialization pathway for mainstream solar power generation and building-integrated PV systems. Advantages include high power output, improved device durability, and lower economic and environmental costs.
ADVANCED MATERIALS
(2022)
Article
Physics, Multidisciplinary
Ling Li, Wan-Jian Yin
Summary: This study revisited iodine defects in CH3NH3PbI3 by combining the accuracy of total energy calculations of GGA and single-electron level calculation of the GW method. The results showed that neutral I-i is unstable, and V-I may be unstable in the -1 charged state but could still be detrimental due to the deep transition level.
Article
Chemistry, Multidisciplinary
Zhendong Guo, Jing Wang, Wan-Jian Yin
Summary: It is discovered that the lattice softness of lead-halide perovskites (LHPs) mainly depends on the steric size and valency of their compositional elements, while previously assumed principal causes do not play the primary role. Through first-principles calculations, the direct correlations between ionic size/valency, lattice softness, structure disorder, and carrier dynamics are comprehensively investigated.
ENERGY & ENVIRONMENTAL SCIENCE
(2022)
Article
Multidisciplinary Sciences
Fei Zhang, So Yeon Park, Canglang Yao, Haipeng Lu, Sean P. Dunfield, Chuanxiao Xiao, Sona Ulicna, Xiaoming Zhao, Linze Du Hill, Xihan Chen, Xiaoming Wang, Laura E. Mundt, Kevin H. Stone, Laura T. Schelhas, Glenn Teeter, Sean Parkin, Erin L. Ratcliff, Yueh-Lin Loo, Joseph J. Berry, Matthew C. Beard, Yanfa Yan, Bryon W. Larson, Kai Zhu
Summary: The performance of 3D perovskite solar cells can be improved by treating the surface with 2D layered perovskites that have efficient charge transport. Adjusting the arrangement of organic molecules enhances hole transport and power conversion efficiency. The use of a stable 2D surface layer also improves the performance and stability of 3D perovskite solar cells.
Article
Chemistry, Physical
Daming Zheng, Tao Zhu, Yanfa Yan, Thierry Pauporte
Summary: Utilizing multiple cations of the 1A alkali metal column to prepare perovskite films can improve photovoltaic properties, with NH4Cl additives enhancing solubility and promoting perovskite phase formation. The addition of NH4Cl also leads to more homogeneous distribution of alkali metals, improving overall crystallization quality and achieving high power conversion efficiency.
ADVANCED ENERGY MATERIALS
(2022)
Article
Energy & Fuels
Manoj K. Jamarkattel, Adam B. Phillips, Kamala Khanal Subedi, Ebin Bastola, Jacob M. Gibbs, Jared D. Friedl, Suman Rijal, Dipendra Pokhrel, Rasha A. Awni, Deng-Bing Li, John Farrell, Robert F. Klie, Xavier Mathew, Yanfa Yan, Randy J. Ellingson, Michael J. Heben
Summary: The study demonstrates enhanced performance in CdTe devices by incorporating solution-processed CuxAlOy to form a back-buffer layer, resulting in increased efficiency and improved current characteristics. Reduction in carrier recombination can lead to improved performance in photovoltaic devices.
IEEE JOURNAL OF PHOTOVOLTAICS
(2022)
Article
Energy & Fuels
Ebin Bastola, Adam B. Phillips, Griffin Barros-King, Manoj K. Jamarkattel, Deng-Bing Li, Abdul Quader, Dipendra Pokhrel, Jared Friedl, Jacob M. Gibbs, Xavier Mathew, Yanfa Yan, Randy J. Ellingson, Michael J. Heben
Summary: CdSe thickness and Cu doping are crucial for achieving high efficiency in CdTe solar cells. CdSe thickness plays a significant role in device performance, with a critical thickness determined at 120 nm. Increasing the Cu doping process temperature can lead to an increase in CdSe thickness and overall device efficiency improvement.
IEEE JOURNAL OF PHOTOVOLTAICS
(2022)
Article
Energy & Fuels
Zhenyi Ni, Haoyang Jiao, Chengbin Fei, Hangyu Gu, Shuang Xu, Zhenhua Yu, Guang Yang, Yehao Deng, Qi Jiang, Ye Liu, Yanfa Yan, Jinsong Huang
Summary: The study reveals the location, mechanisms, and defects involved in the performance degradation of p-i-n perovskite solar cells under illumination or reverse bias. The efficiency decreases over time, yet the introduction of a hole-blocking layer between the layers can improve the reverse-bias stability. Charged iodide interstitial defects within the device layers are observed and found to contribute to efficiency degradation under both light and reverse bias conditions.
Article
Chemistry, Multidisciplinary
Shaowen Zhou, Chao-Lung Chiang, Jianqing Zhao, Guanjian Cheng, Tariq Bashir, Wanjian Yin, Junyi Yao, Shiqi Yang, Wanying Li, Jiaqi Wang, Xinyuan Wang, Yan-Gu Lin, Lijun Gao
Summary: Li-ion hybrid supercapacitors with high power densities are intensively studied, and this study introduces a defect-dominating structure protocol to improve the energy density of the anode material. By introducing crystal vacancies and lattice distortions in the ultrafine niobium nitride monocrystals integrated into a carbon framework, a NbN@C composite anode is created with high reversible Li-ion storage capacities, excellent rate capability, and cycling stability. First-principles density functional theory simulations confirm the extra capacity contribution of the defective NbN component. The findings from this study can inspire new structural material designs of LHSCs.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Zhiyuan Xu, Ling Li, Xiyue Dong, Di Lu, Rui Wang, Wan-Jian Yin, Yongsheng Liu
Summary: CsPbI3-based 2D Ruddlesden-Popper perovskites with thiophene-based aromatic spacers exhibit improved phase stability and achieve a record efficiency of 16.00%. These devices maintain high efficiency even after long-term storage and exposure to high temperatures.
Article
Multidisciplinary Sciences
Guanjian Cheng, Xin-Gao Gong, Wan-Jian Yin
Summary: Crystal structure prediction is a challenging task in condensed matter and chemical science. In this study, a machine-learning approach using a graph network and an optimization algorithm is proposed for crystal structure prediction. The approach was tested on different databases and showed accurate predictions of crystal structures at a lower computational cost.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Applied
Jing Wang, Wan-Jian Yin
Summary: This study investigates the correlation between the compositional ratio of the A/X site and the photo-generated carrier dynamics in mixed halide perovskites. The results demonstrate that alloying significantly influences the performance of solar cells by suppressing atomic fluctuations, weakening electron-phonon coupling, and reducing electron-transition probability. The findings provide insights into the optimization of carrier lifetimes and efficiencies in perovskite solar cells.
JOURNAL OF ENERGY CHEMISTRY
(2022)
