Article
Nanoscience & Nanotechnology
Anat Itzhak, Xu He, Adi Kama, Sujit Kumar, Michal Ejgenberg, Antoine Kahn, David Cahen
Summary: Using RF sputtering to fabricate NiOx and covering it with a NiyN layer in vacuum can improve the efficiency and stability of solar cells.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Tao Zhu, Lening Shen, Hanlin Chen, Yongrui Yang, Luyao Zheng, Rui Chen, Jie Zheng, Junpeng Wang, Xiong Gong
Summary: Conjugated molecules have been effectively utilized to enhance the performance of perovskite solar cells, with the incorporation of novel conjugated aniline leading to improved efficiency and stability in the reported study. This demonstrates the potential of incorporating conjugated molecules as organic spacer cations to create 2D perovskites on top of 3D perovskites for high-performance PSCs.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Chemistry, Physical
Shynggys Zhumagali, Furkan H. Isikgor, Partha Maity, Jun Yin, Esma Ugur, Michele De Bastiani, Anand S. Subbiah, Alessandro James Mirabelli, Randi Azmi, George T. Harrison, Joel Troughton, Erkan Aydin, Jiang Liu, Thomas Allen, Atteq Ur Rehman, Derya Baran, Omar F. Mohammed, Stefaan De Wolf
Summary: This study presents an efficient NiOx/perovskite interface passivation strategy using an organometallic dye molecule to enhance the performance and stability of PSCs. The power conversion efficiency of single-junction p-i-n PSCs significantly increases, and highly efficient textured monolithic p-i-n perovskite/silicon tandem solar cells can be fabricated. Additionally, the passivation strategy improves device stability by preventing undesirable chemical reactions at the NiOx/perovskite interface.
ADVANCED ENERGY MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
SangMyeong Lee, Won Bin Kim, Jae Myeong Lee, Hee Jung Kim, Jin Hyuk Choi, Hyun Suk Jung
Summary: By utilizing oxide passivation technology, this study significantly improved the endurance and retention performance of HP-based resistive-switching memory devices. The results demonstrated that zirconium oxide is an effective passivation material for enhancing the properties of these devices.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Zhaohua Zhu, Yan Wu, Yang Shen, Jihua Tan, Dong Shen, Ming-Fai Lo, Menglin Li, Yi Yuan, Jian-Xin Tang, Wenjun Zhang, Sai-Wing Tsang, Zhiqiang Guan, Chun-Sing Lee
Summary: This study presents a highly efficient sky-blue PeLED based on a quasi-two-dimensional structure with an external quantum efficiency of 13.8%. The high efficiency is achieved by suppressing both triplet and trap-assisted nonradiative energy loss using a ligand with high-triplet-energy and dual-functional passivation groups, proposing a universal strategy to improve the efficiency of sky-blue PeLEDs.
CHEMISTRY OF MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Hehe Huang, Xuliang Zhang, Chenyu Zhao, Jianyu Yuan
Summary: In this study, a hybrid strategy using the conjugated polyelectrolyte PFN-Br and all-inorganic CsPbI3 perovskite quantum dots (QDs) is reported. By passivating the surface of CsPbI3 QDs with hydrophobic PFN-Br, the defect states and migration of halide ions can be reduced, leading to improved stability and a champion efficiency of 15.07% for the hybrid PFN-Br/CsPbI3 QD solar cell.
MATERIALS CHEMISTRY FRONTIERS
(2023)
Article
Multidisciplinary Sciences
Stefania Cacovich, Guillaume Vidon, Matteo Degani, Marie Legrand, Laxman Gouda, Jean-Baptiste Puel, Yana Vaynzof, Jean-Francois Guillemoles, Daniel Ory, Giulia Grancini
Summary: Interface engineering using passivating agents is an effective strategy to improve the performance of perovskite solar cells. This study investigates the interface and device physics of high efficiency inverted solar cells, quantifying charge recombination and losses. The results show that organic passivation mainly affects the perovskite/PCBM interface, and the use of organic passivation maximizes the photovoltaic figures of merit.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Martha Judith Rivera Medina, Lorenzo Di Mario, Simon Kahmann, Jun Xi, Giuseppe Portale, Giovanni Bongiovanni, Andrea Mura, Juan Carlos Alonso Huitron, Maria Antonietta Loi
Summary: We demonstrate blue LEDs with high color purity and excellent performance based on quasi-2D perovskites. The inclusion of isopropylammonium as an additive suppresses the formation of bulk-like phases and improves the performance of the LEDs. The study of excitation dynamics reveals hindered energy transfer, resulting in a narrow distribution of quantum well sizes and a high photoluminescence quantum yield.
Article
Chemistry, Multidisciplinary
Ke Meng, Xiao Wang, Zhimin Li, Zhou Liu, Zhi Qiao, Chunwu Wang, Youdi Hu, Shunde Li, Lei Cheng, Yufeng Zhai, Gang Chen
Summary: This study presents an effective self-passivation strategy to enhance the efficiency and stability of BA-based LDP solar cells. The unique crystal stacking pattern of the BA-based LDP film containing highly oriented perovskite crystals of different layer thicknesses is revealed.
ENERGY & ENVIRONMENTAL SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Bo Li, Zhen Li, Danpeng Gao, Xin Wu, Xintong Li, Chunlei Zhang, Shuai Li, Jianqiu Gong, Dong Zhang, Xiangfan Xie, Shuang Xiao, Haipeng Lu, Mingjie Li, Zonglong Zhu
Summary: By designing long-chain alkylamines as crystallization buffer molecules, the residual strain in tin perovskite films was released, thus improving the photovoltaic performance and stability of lead-stabilized tin perovskite solar cells (TPSCs).
MATERIALS CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Physical
Qiang Lou, Yufang Han, Chang Liu, Kanghui Zheng, Jinsheng Zhang, Xia Chen, Qing Du, Chong Chen, Ziyi Ge
Summary: This work presents a new type of SnO2 passivator, which improves the efficiency of perovskite solar cells by optimizing molecular stacking to enhance interfacial characteristics. The impressive power conversion efficiency over 23% achieved with this new passivator is among the highest reported values for triple-cation perovskite systems to date.
ADVANCED ENERGY MATERIALS
(2021)
Article
Chemistry, Physical
Patricio Serafini, Alexis Villanueva-Antoli, Samrat Das Adhikari, Sofia Masi, Rafael S. Sanchez, Jhonatan Rodriguez-Pereira, Bapi Pradhan, Johan Hofkens, Andres F. Gualdron-Reyes, Ivan Mora-Sero
Summary: In this study, the introduction of guanidinium (GA+) during the synthesis of high-quality Cs(1-x)GA(x)PbI(3) perovskite nanocrystals (PNCs) was explored as a promising approach for the fabrication of efficient bright-red light-emitting diodes (R-LEDs). The substitution of Cs by 10 mol % GA allowed the preparation of mixed-cation PNCs with PLQY up to 100% and long-term stability for 180 days. This substitution compensated intrinsic defect sites and suppressed the non-radiative recombination pathway, leading to R-LEDs with improved performance and stability.
CHEMISTRY OF MATERIALS
(2023)
Article
Energy & Fuels
Teoman Ozturk, Adem Sarilmaz, Seckin Akin, Huseyin Dursun, Faruk Ozel, Erdi Akman
Summary: By using quinary kesterite nanocrystals as passivation agents, defect states at the grain boundaries of perovskite films are greatly reduced, promoting continuity between adjacent grains and improving hole transport ability while suppressing interfacial recombination. This approach has led to high efficiency and excellent stability in perovskite solar cells.
Article
Energy & Fuels
Chao Ji, Chunjun Liang, Qi Song, Hongkang Gong, Ning Liu, Fangtian You, Dan Li, Zhiqun He
Summary: Introducing a long-chain alkyl phenylbutylammonium (PBA(+)) cation to form a 2D/3D heterojunction perovskite effectively passivates surface defects of 3D perovskite, enhancing photoluminescence intensity and carrier lifetime. The 2D layer also improves interface contact and energy-level arrangement, making it a more n-type semiconductor, facilitating electron transfer and transport, leading to enhanced open circuit voltage and fill factor, ultimately improving PCE by 2.54%.
Article
Chemistry, Multidisciplinary
Kunal Datta, Junke Wang, Dong Zhang, Valerio Zardetto, Willemijn H. M. Remmerswaal, Christ H. L. Weijtens, Martijn M. Wienk, Rene A. J. Janssen
Summary: An integrated all-perovskite tandem solar cell is developed using surface passivation strategies to reduce non-radiative recombination, yielding a high open-circuit voltage. By using optically benign transparent electrode and charge-transport layers, absorption in the narrow-bandgap sub-cell is improved, leading to an improvement in current-matching between sub-cells.
ADVANCED MATERIALS
(2022)
Article
Energy & Fuels
Wei Chen, Yudong Zhu, Jingwei Xiu, Guocong Chen, Haoming Liang, Shunchang Liu, Hansong Xue, Erik Birgersson, Jian Wei Ho, Xinshun Qin, Jingyang Lin, Ruijie Ma, Tao Liu, Yanling He, Alan Man-Ching Ng, Xugang Guo, Zhubing He, He Yan, Aleksandra B. Djurisic, Yi Hou
Summary: Perovskite/organic tandem solar cells have a promising future in thin-film photovoltaics due to the large chemical composition and tunability of their bandgap. However, their efficiency is currently limited by the open-circuit voltage loss and non-ideal interconnecting layers. In this study, the passivation of nickel oxide hole-transporting layers and the development of an optimized interconnecting layer structure led to a significant increase in efficiency, reaching a maximum of 23.60% (22.95% certified) in perovskite/organic tandem solar cells.
Article
Chemistry, Physical
Juraj Ovcar, Tik Lun Leung, Luca Grisanti, Zeljko Skoko, Martina Vrankic, Kam-Hung Low, Shixun Wang, Pei-Ying You, Hyeyoung Ahn, Ivor Loncaric, Aleksandra B. Djurisic, Jasminka Popovic
Summary: This study investigates the influence of spacer cations on the structure of two-dimensional perovskites. The results show that the branched tert-butyl ammonium spacer cation can form a stable Ruddlesden-Popper structure when the inorganic pocket is designed appropriately.
CHEMISTRY OF MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Daquan Zhang, Yudong Zhu, Qianpeng Zhang, Beitao Ren, Bryan Cao, Qizhen Li, Swapnadeep Poddar, Yu Zhou, Xiao Qiu, Zhubing He, Zhiyong Fan
Summary: By fabricating vertically integrated MHP quantum wire/nanowire array-based photodetectors in nanoengineered porous alumina membranes, self-driven broadband photodetection and narrowband photodetection capabilities are achieved simultaneously. Excellent photodetection performance and mechanical flexibility are realized by manipulating the structure and optical properties of the materials, providing a new pathway for the development of novel optoelectronic devices.
Article
Energy & Fuels
Yantao Wang, Jingyang Lin, Yanling He, Yi Zhang, Qiong Liang, Fangzhou Liu, Zhiwei Zhou, Christopher C. S. Chan, Gang Li, Shien-Ping Feng, Alan Man Ching Ng, Kam Sing Wong, Jasminka Popovic, Aleksandra B. Djurisic
Summary: This study demonstrates that optimizing the exposure of the capping layer to ambient atmosphere can substantially improve the performance of perovskite solar cells. The best performing devices have improved power conversion efficiency and stability.
Article
Chemistry, Physical
Tik Lun Leung, Zhilin Ren, Ali Asgher Syed, Luca Grisanti, Aleksandra B. Djurisic, Jasminka Popovic
Summary: This study investigated temperature- and light-induced halide segregation in 2D mixed halide perovskites with a phenylpropylammonium spacer. The research found complex segregation behavior in the 2D perovskites, which showed distinct differences compared to 2D perovskites with other aromatic cations.
ACS ENERGY LETTERS
(2022)
Article
Marine & Freshwater Biology
Racliffe Weng Seng Lai, Guang-Jie Zhou, Hye-Min Kang, Chang-Bum Jeong, Aleksandra B. Djurisic, Jae-Seong Lee, Kenneth Mei Yee Leung
Summary: This study investigated the joint toxicity of polystyrene nanoplastics (PNPs) and zinc oxide nanoparticles (ZnO-NPs) to a rotifer, and compared it with the joint toxicity of PNPs and Zn ions. The results showed an antagonistic interaction between ZnO-NPs and PNPs, while an additive effect was observed between Zn-IONS and PNPs. The study suggests the use of the Nonparametric Response Surface method for predicting the toxicity of chemical mixtures with interacting effects.
AQUATIC TOXICOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Zhaoning Li, Qin Tan, Guocong Chen, Han Gao, Jiafeng Wang, Xusheng Zhang, Jingwei Xiu, Wei Chen, Zhubing He
Summary: Three new molecules, 2BrCzPA, 2BrPTZPA, and 2BrPXZPA, were developed as self-assembled hole selective contacts for inverted perovskite solar cells (PSCs). These materials showed improved energy level matching and decreased energy loss, resulting in higher photovoltaic performance. The study extends the design strategy of self-assembled hole selective contacts and promotes the commercialization process of inverted PSCs.
Article
Materials Science, Multidisciplinary
Wen Ting Sun, Zengshan Xing, Aleksandr Sergeev, Yanling He, Alan Man Ching Ng, Kam Sing Wong, Lidija Molcanov, Jasminka Popovic, Aleksandra B. B. Djurisic
Summary: Investigated the stability of a tin bromide perovskite and found that the optical properties were influenced by humidity rather than the Sn2+/Sn4+ ratio. Increase in luminescence was attributed to the hydrated 1D phase, while degradation occurred after 40 hours of exposure to humidity. Additives extended the lifetime of the samples, which was attributed to changes in phase composition rather than suppression of Sn2+ oxidation.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Chemistry, Physical
Jingwei Xiu, Bing Han, Han Gao, Xihan Chen, Zhenhua Chen, Shaokuan Gong, Xianchang Yan, Wenming Tian, Xusheng Zhang, Tian Chen, Xiyuan Feng, Guocong Chen, Dong He, Yonghong Deng, Shengye Jin, Peter Raymond Slater, Zhubing He
Summary: In order to address the toxicity concern of extensively used chlorobenzene and toluene antisolvents, a general and highly reproducible methodology of employing CsPbI3 nanocrystals functionalized green alkanes with ultralow-polarity as antisolvents to fabricate high-quality perovskite films is reported in this work. This approach provides perovskite films with improved quality, high-orientation, and suppressed phase segregation, leading to enhanced stability and conversion efficiency compared to the traditional chlorobenzene processing.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Applied
Dongyang Li, Yulan Huang, Zhiwei Ren, Abbas Amini, Aleksandra B. Djurisic, Chun Cheng, Gang Li
Summary: In recent years, inverted perovskite solar cells (IPSCs) have gained significant attention for their low-temperature and cost-effective fabrication processes, hysteresis-free properties, excellent stability, and wide application. The efficiency gap between IPSCs and regular structures has narrowed down to less than 1%. Recent improvements in the efficiency of IPSCs, including interface engineering and novel film production techniques, are reviewed, along with tandem and integrated applications of IPSCs. Prospects for further development of IPSCs, such as the development of new materials, methods, and device structures, are discussed to meet the requirements of commercialization.
JOURNAL OF ENERGY CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Shien-Ping Feng, Yuanhang Cheng, Hin-Lap Yip, Yufei Zhong, Patrick W. K. Fong, Gang Li, Annie Ng, Cong Chen, Luigi Angelo Castriotta, Fabio Matteocci, Luigi Vesce, Danila Saranin, Aldo Di Carlo, Puqun Wang, Jian Wei Ho, Yi Hou, Fen Lin, Armin G. Aberle, Zhaoning Song, Yanfa Yan, Xu Chen, Yang (Michael) Yang, Ali Asgher Syed, Ishaq Ahmad, Tiklun Leung, Yantao Wang, JingYang Lin, Alan Man Ching Ng, Yin Li, Firouzeh Ebadi, Wolfgang Tress, Giles Richardson, Chuangye Ge, Hanlin Hu, Masoud Karimipour, Fanny Baumann, Kenedy Tabah, Carlos Pereyra, Sonia R. Raga, Haibing Xie, Monica Lira-Cantu, Mark Khenkin, Iris Visoly-Fisher, Eugene A. Katz, Yana Vaynzof, Rosario Vidal, Guicheng Yu, Haoran Lin, Shuchen Weng, Shifeng Wang, Aleksandra B. Djurisic
Summary: Perovskite solar cells (PSCs) are highly promising in terms of power conversion efficiency, but commercialization still faces unresolved problems and obstacles. This article provides a concise summary of outstanding issues, challenges, and progress made in addressing them, offering expert viewpoints across various topics related to PSC commercialization. It aims to serve as a valuable resource for researchers in the field and facilitate discussions to overcome the outstanding challenges in this fast-developing area.
JOURNAL OF PHYSICS-MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Wen Ting Sun, Yanling He, Muhammad Umair Ali, Qiye Liu, Hongbo Mo, Sijia Wang, Alan Man Ching Ng, Aleksandra B. Djurisic
Summary: This study investigates the performance improvement of sky-blue perovskite light-emitting diodes through optimization of perovskite composition and device architecture. By adjusting the perovskite composition and inserting a specific layer at the hole transport layer-perovskite interface, significant enhancement in device efficiency is achieved.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Chemistry, Physical
Damir Aidarkhanov, Zhuldyz Yelzhanova, Zhiwei Ren, Gaukhar Nigmetova, Shu Ping Lau, Mannix P. Balanay, Hanlin Hu, Charles Surya, Aleksandra B. Djurisic, Annie Ng
Summary: Interfacial engineering using black phosphorus nanoflakes improves the power conversion efficiency and stability of perovskite solar cells. The nanoflakes optimize critical parameters, such as enhancing perovskite crystallization and reducing defect density, resulting in improved device performance.
SURFACES AND INTERFACES
(2023)
Article
Chemistry, Physical
Baian Chen, Mingzi Sun, Rui Chen, Bolong Huang
Summary: This study reveals the atomic substitution effects of inorganic perovskites, which offer significant guidance for the design of next-generation optoelectronic devices.
Review
Chemistry, Multidisciplinary
Dongxue Han, Chengxi Li, Chengyu Jiang, Xue Jin, Xiongbin Wang, Rui Chen, Jiaji Cheng, Pengfei Duan
Summary: Materials with circularly polarized luminescence (CPL) properties have recently gained significant attention for their potential applications in various fields. Inorganic nanomaterials, with their advantages in stability, diversity, and high luminescent quantum efficiency, have been the focus of extensive research in the past few decades, leading to significant progress in synthesis, characterizations, and potential applications.
