Xin Li, Zhiqin Ying, Xuezhen Wang, Yuheng Zeng, Xi Yang, Jichun Ye
{"title":"How to enable highly efficient and large‐area fabrication on specific textures for monolithic perovskite/silicon tandem solar cells?","authors":"Xin Li, Zhiqin Ying, Xuezhen Wang, Yuheng Zeng, Xi Yang, Jichun Ye","doi":"10.1002/ifm2.18","DOIUrl":"https://doi.org/10.1002/ifm2.18","url":null,"abstract":"Perovskite/silicon tandem solar cells (PVSK/Si TSCs) have emerged as a promising photovoltaic technology toward achieving a high power conversion efficiency (PCE) along with cost‐effective manufacturing. The PCE of PVSK/Si TSCs has skyrocketed to a certified 33.9%, surpassing the theoretical limit of any single‐junction solar cell. This achievement is partially attributed to advancements in surface textures for Si bottom cells. In this regard, we present an overview of the recent developments concerning surface textures of Si in monolithic PVSK/Si TSCs, including planar, pyramid texture, and nanotexture. Following, the prevailing perovskite deposition methods on these textures are thoroughly discussed, and the corresponding challenges are evaluated. Additionally, we provide a summary of the advanced morphological, structural, optical, and electrical characterization techniques being utilized for theses textures. Finally, the prospects for further development of PVSK/Si TSCs are outlined, including designing novel textures with industrial compatibility, developing perovskite deposition methods with scalability, and exploring more pertinent characterization techniques for textured PVSK/Si TSCs.","PeriodicalId":517633,"journal":{"name":"Information & Functional Materials","volume":"6 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141648397","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Metal–organic frameworks for nonlinear optics and lasing","authors":"Chenyu Li, Guodong Qian, Yuanjing Cui","doi":"10.1002/ifm2.17","DOIUrl":"https://doi.org/10.1002/ifm2.17","url":null,"abstract":"Nonlinear optics (NLO) is a crucial branch of photonics that greatly facilitates the transmission, processing, and storage of photonic signals. It meets the needs of the rapidly growing information demands of modern society. Materials with NLO properties and laser capabilities have a wide range of applications in fields such as optical communication, optical information storage, biomedical imaging, laser technology, and quantum information technology. Metal–organic frameworks (MOFs) have emerged as particularly exciting hybrid inorganic–organic porous materials that can be easily self‐assembled from corresponding inorganic metal ions/clusters and organic linkers. The structural diversity and flexibility of MOFs offer ample opportunities for the orderly organization of highly hyperpolarizable chromophore molecules within confined spaces. This makes it ideal for NLO signal and laser emissions. In this review, we provide a comprehensive overview of strategies to construct MOFs with NLO and laser properties, as well as recent research developments for enhancing and adjusting these properties. Through analysis of chromophore arrangement and various interactions within the framework, we aim to gain insight into the correlation between MOF structures and optical properties. This will facilitate the design and synthesis of MOFs with excellent NLO and laser capabilities through the judicious selection of metal ions and organic linkers. Finally, we outline the future challenges and potential research directions for MOFs in NLO and laser fields.","PeriodicalId":517633,"journal":{"name":"Information & Functional Materials","volume":" 25","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141677026","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Xiaozhen Chen, Jiadong Zhou, Zengqi Xie, Yuguang Ma
{"title":"Excitons in confined molecular aggregates","authors":"Xiaozhen Chen, Jiadong Zhou, Zengqi Xie, Yuguang Ma","doi":"10.1002/ifm2.9","DOIUrl":"https://doi.org/10.1002/ifm2.9","url":null,"abstract":"Organic optoelectronic materials have attracted extensive attention in the past decades due to their wide applications in organic light‐emitting diodes (OLEDs), organic photovoltaics (OPVs), photocatalysis, etc. Significant advancements have been obtained in the material designs based on the insight into the fundamental physics of exciton related to molecular stacking patterns in solid/condensed states. The exciton characteristics and behaviors are not only a starting point for studying photophysical and photochemical processes on a microscopic level, but also a crucial point in determining the optoelectronic properties of macroscopic aggregates. This review summarizes the historic development of exciton models, accompanied by the discoveries of special molecular stacking patterns (H‐/J‐/X‐/M‐aggregates), and the competitive de‐excitation pathways of excitons including fluorescence, energy transfer, singlet fission, excimer formation and symmetry‐breaking charge separation in the confined aggregate structures. Additionally, it highlights the capabilities of a correlation between molecular stacking modes and exciton behaviors, which provides new insights and perspectives for optimizing exciton character and behavior through the modulation of molecular arrangement in aggregate states, thereby enhancing the performance of optoelectronic materials.","PeriodicalId":517633,"journal":{"name":"Information & Functional Materials","volume":"39 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141008205","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ao Liu, Huadong Yuan, Yao Wang, Yujing Liu, Jianmin Luo, J. Nai, Xinyong Tao
{"title":"Reviewing metal fluorides as the cathode materials for high performance Li batteries","authors":"Ao Liu, Huadong Yuan, Yao Wang, Yujing Liu, Jianmin Luo, J. Nai, Xinyong Tao","doi":"10.1002/ifm2.7","DOIUrl":"https://doi.org/10.1002/ifm2.7","url":null,"abstract":"Exploring high‐energy density rechargeable lithium (Li) batteries is urgently needed to meet the demand of the large‐scale electric vehicle market. Conversion‐type metal fluorides (MFx) have been considered as desirable cathode materials for next‐generation rechargeable batteries because of their high operational voltages, environmental non‐toxicity, low cost, and high thermal stability. In this review, we present the most promising and feasible MFx applied in rechargeable Li batteries in terms of capacity, discharge potential, volume change, fabricated methods, crystal structure, and cost/abundance. The electrochemical performance is briefly illustrated, and the recent advances in mechanisms focused on MFx cathodes upon cyclic processes are noted and discussed in detail. Finally, prospects for the current challenges and possible research directions, with the aim to provide some inspiration for the development of MFx‐based cathodes are presented.","PeriodicalId":517633,"journal":{"name":"Information & Functional Materials","volume":"41 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140283786","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Self‐assembled monolayers for perovskite solar cells","authors":"Dongdong Xu, Pu Wu, H. Tan","doi":"10.1002/ifm2.8","DOIUrl":"https://doi.org/10.1002/ifm2.8","url":null,"abstract":"In metal‐halide perovskite solar cells (PSCs), various carrier recombination losses occur at the interface between metal oxides (MOs) and perovskite (PVK) due to the imperfect lattice structure of the crystal surface. Additionally, the nonoptimal energy levels of MOs and PVK, as well as ion diffusion and chemical corrosion between the two materials, severely hinder carrier transport at the interface. Therefore, there is an urgent need to introduce multifunctional materials between MOs and PVK to mitigate interface defects, carrier transport limitations, chemical corrosion, and other related issues. In recent years, self‐assembled monolayers (SAMs) have emerged as essential organic interfacial materials for effectively bridging MOs and PVK, playing a pivotal role in enhancing cells’ performance. Based on this, we provide a detailed overview of the origin and development of SAMs in PSCs and summarize the importance and potential of SAMs from various aspects, including their chemical structure, interface passivation, energy level tuning, and interface corrosion. We finally discuss the prospects of SAMs in terms of molecular structure, deposition methods, and their application in narrow‐band gap PSCs. With these insights, it is anticipated that SAMs will assist in realizing larger, highly efficient, stable, and cost‐effective PSCs, thereby enhancing the competitiveness of PSCs in the solar photovoltaics market.","PeriodicalId":517633,"journal":{"name":"Information & Functional Materials","volume":" 21","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140392791","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}