Article
Chemistry, Physical
Alessandro Caiazzo, Arthur Maufort, Bas T. van Gorkom, Willemijn H. M. Remmerswaal, Jordi Ferrer Orri, Junyu Li, Junke Wang, Wouter T. M. van Gompel, Kristof Van Hecke, Gunnar Kusch, R. A. Oliver, Caterina Ducati, Laurence Lutsen, Martijn M. Wienk, Samuel D. Stranks, Dirk Vanderzande, Rene A. J. Janssen
Summary: 2H-Benzotriazol-2-ylethylammonium bromide and iodide and its difluorinated derivatives are synthesized and used as interlayers to passivate formamidinium lead triiodide (FAPbI3) solar cells. Their combination with PbI2 and PbBr2 forms two-dimensional Ruddlesden-Popper perovskites, improving the efficiency of the solar cells.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Thomas Campos, Pia Dally, Stephanie Gbegnon, Alexandre Blaizot, Gaelle Trippe-Allard, Marion Provost, Muriel Bouttemy, Aurelien Duchatelet, Damien Garrot, Jean Rousset, Emmanuelle Deleporte
Summary: The formation of 2D/3D perovskite heterostructures has shown promise in improving the interface between perovskite and electron/hole transport layers in solar cells. In this study, a thin 2D perovskite layer was formed on top of a 3D triple-cation perovskite using a spacer cation in isopropyl alcohol. This resulted in a significant improvement in device open-circuit voltage and power conversion efficiency. The study also revealed the presence of bromide in the 2D phase and demonstrated the impact of the chemical composition of the underlying 3D layer on the stoichiometry of the 2D perovskite.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Multidisciplinary
Yaoyao Huang, Zhangyu Yuan, Jia Yang, Shungao Yin, Aihui Liang, Gang Xie, Chuizheng Feng, Zhisheng Zhou, Qifan Xue, Yang Pan, Fei Huang, Yiwang Chen
Summary: Stacking two-dimensional perovskites on three-dimensional perovskite is a promising method to improve the photovoltaic performance by passivating interfacial defects and reducing non-radiative recombination losses. In this study, conjugated fluorinated benzimidazolium cation (FBIm(+)) was used to form in-situ two-dimensional perovskite between 3D perovskite and the hole-transporting layer, leading to better stability and efficiency of perovskite solar cells.
SCIENCE CHINA-CHEMISTRY
(2023)
Article
Chemistry, Physical
Chunyan Deng, Jihuai Wu, Yitian Du, Qi Chen, Zeyu Song, Guodong Li, Xiaobing Wang, Jianming Lin, Weihai Sun, Miaoliang Huang, Yunfang Huang, Peng Gao, Zhang Lan
Summary: The introduction of A-PPG as an additive solvent allows for the formation of a quasi-2D perovskite layer on 3D perovskite, optimizing the energy array, repairing defects, and mitigating carrier nonradiative recombination, resulting in an improved device efficiency.
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%.
Review
Chemistry, Multidisciplinary
Qian Zhou, Baibai Liu, Xuxia Shai, Yuelong Li, Peng He, Hua Yu, Cong Chen, Zong-Xiang Xu, Dong Wei, Jiangzhao Chen
Summary: 2D/3D perovskite heterojunctions show promise in improving the efficiency and stability of perovskite solar cells (PSCs). However, challenges still exist in developing high-quality 2D/3D heterojunctions, such as controlling the perovskite phase and poor performance in inverted devices, limiting their commercialization. This paper summarizes the latest research progress and critical factors in modulating PSCs with 2D/3D heterojunctions, highlighting the advantages of constructing these heterojunctions and discussing the problems and solutions of using low-dimensional perovskites as passivation layers. The prospects of utilizing 2D/3D perovskite heterojunctions in passivation strategies to further improve the photovoltaic performance of PSCs in the future are also presented.
CHEMICAL COMMUNICATIONS
(2023)
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
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, Multidisciplinary
Weiran Zhou, Lingbo Jia, Muqing Chen, Xingcheng Li, Zhenhuang Su, Yanbo Shang, Xiaofen Jiang, Xingyu Gao, Tao Chen, Mingtai Wang, Zonglong Zhu, Yalin Lu, Shangfeng Yang
Summary: 2D/3D hybrid perovskite solar cells with a novel amino-functionalized fullerene derivative as a spacer achieved enhanced electron transport and improved humidity stability. The introduction of a fullerene tail increased electron density and induced an additional built-in electric field, improving electron transport in PSCs.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Dachang Liu, Xiao Wang, Xianzhao Wang, Bingqian Zhang, Xiuhong Sun, Zhipeng Li, Zhipeng Shao, Sui Mao, Li Wang, Guanglei Cui, Shuping Pang
Summary: In this study, different polymerization strategies were used to construct three-dimensional passivation frameworks in the perovskite layer, which reduced the defect state density and increased the carrier diffusion length. The reduction of iodine vacancies changed the Fermi level of the perovskite layer and improved the energy level alignment and carrier injection efficiency. As a result, the optimized device achieved an efficiency exceeding 24% with a high open-circuit voltage of 1.194 V, and the corresponding module achieved an efficiency of 21.55%.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Danni Yu, Qi Wei, Hansheng Li, Junhan Xie, Xianyuan Jiang, Ting Pan, Hao Wang, Mengling Pan, Wenjia Zhou, Weimin Liu, Philip C. Y. Chow, Zhijun Ning
Summary: The combination of comprehensive surface passivation and effective interface carrier transfer plays a critical role in high-performance perovskite solar cells. A new molecule, 2-thiopheneethylamine thiocyanate (TEASCN), is synthesized to construct a bilayer quasi-2D structure on a tin-lead mixed perovskite surface. This bilayer structure passivates the perovskite surface and ensures effective carrier transfer, resulting in improved open-circuit voltage and certified efficiency.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Engineering, Electrical & Electronic
Ji Li, Peng Xiang, Xinyu Tan, Bowen Li, Kai Zhang, Ying Zhu, Yanqi Ren, Xiaobo Chen
Summary: The introduction of short-chain 3,5-dichlorobenzylamine (DBA) with halogen functional groups to react with excess PbI2 can improve the photovoltaic performance and stability of 2D/3D heterojunction perovskite solar cells (PSCs). The DBA-treated 2D/3D PSCs achieved a champion power conversion efficiency (PCE) of 21.54% and showed improved resistance to moisture ingress.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Materials Science, Multidisciplinary
Esma Ugur, Erkan Aydin, Michele De Bastiani, George T. Harrison, Bumin K. Yildirim, Sam Teale, Bin Chen, Jiang Liu, Mingcong Wang, Akmaral Seitkhan, Maxime Babics, Anand S. Subbiah, Ahmed Ali Said, Randi Azmi, Atteq Ur Rehman, Thomas G. Allen, Philip Schulz, Edward H. Sargent, Frederic Laquai, Stefaan De Wolf
Summary: By tuninging the dimensionality of 2D perovskites, an improved passivation at the interface and enhanced hole extraction can be achieved, resulting in improved performance and higher photocurrent in perovskite solar cells.
Article
Chemistry, Multidisciplinary
Qian Cheng, Boxin Wang, Gaosheng Huang, Yanxun Li, Xing Li, Jieyi Chen, Shengli Yue, Kang Li, Hong Zhang, Yuan Zhang, Huiqiong Zhou
Summary: This study investigates the residual strain in a two-dimensional Ruddlesden-Popper perovskite film and finds that the spacer cations contribute to the residual strain. By strain relaxation, the film quality is improved, leading to enhanced efficiency and good stability in unstable environments.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Fang Zeng, Weiyu Kong, Yuhang Liang, Feng Li, Yuze Lvtao, Zhenhuang Su, Tao Wang, Bingguo Peng, Longfang Ye, Zhenhua Chen, Xingyu Gao, Jun Huang, Rongkun Zheng, Xudong Yang
Summary: By tuning the lattice structure of FA-based 2D perovskite through spacer cation engineering and employing a molecular additive, the efficiency and stability of solar cells are improved. The crystallization process is controlled to reduce defects and enhance charge separation. The devices exhibit less than 1% efficiency degradation after 1000 hours of operation at maximum power point.
ADVANCED MATERIALS
(2023)
Article
Polymer Science
Junjie Wang, Yuchao Liu, Deyue Zou, Zhongjie Ren, Jie Lin, Xingyuan Liu, Shouke Yan
Summary: This study simultaneously controlled chain orientation and crystal form in large-area highly ordered PFO thin films through epitaxial crystallization, resulting in low-loss waveguides and enhanced light out-coupling efficiency, leading to excellent performance in amplified spontaneous emission.
Correction
Materials Science, Multidisciplinary
Lishuang Wang, Ying Lv, Jie Lin, Jialong Zhao, Xingyuan Liu, Ruosheng Zeng, Xun Wang, Bingsuo Zou
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Energy & Fuels
Xiaoyang Liang, Zhiqiang Li, Xingyuan San, Tao Liu, Yufan Liu, Kai Shen, Shufang Wang, Ruud E. Schropp, Yaohua Mai
Summary: Low-symmetric and structurally anisotropic materials, such as antimony selenide and analogues, have attracted research interest for their distinctive properties. Growth of monocrystalline Sb2Se3 nanorod arrays (NRAs) along the [hkT] orientation on polycrystalline surfaces is achieved under different growth conditions. Solar cells based on the [Ha]-oriented Sb2Se3 NRAs exhibit high power conversion efficiency and quasi-omnidirectional light absorption characteristics.
Article
Chemistry, Multidisciplinary
Zhaoteng Duan, Xiaoyang Liang, Yang Feng, Haiya Ma, Baolai Liang, Ying Wang, Shiping Luo, Shufang Wang, Ruud E. I. Schropp, Yaohua Mai, Zhiqiang Li
Summary: This study reports the fabrication of compact Sb2Se3 films using injection vapor deposition, resulting in high crystallinity and minimal defects, which leads to improved energy conversion efficiency in solar cells.
ADVANCED MATERIALS
(2022)
Review
Chemistry, Multidisciplinary
Gowri Manohari Arumugam, Santhosh Kumar Karunakaran, Raquel E. Galian, Julia Perez-Prieto
Summary: All-inorganic lead halide perovskite nanocrystals have the potential for optoelectronics and photovoltaics. However, their biological applications have been limited due to stability issues and shallow penetration depth of UV light. The combination of inorganic perovskite nanocrystals with lanthanide-doped nanoparticles enables stable, NIR excitable, and emission tuneable properties, making them suitable for biological applications. Lanthanide doping has also improved the luminescence of inorganic perovskite nanomaterials. This review discusses the progress, properties, and applications of various lanthanide-doped all-inorganic perovskites, as well as the challenges and future perspectives of bio-imaging based on NIR-triggered sensitized luminescence of these nanocrystals.
Article
Chemistry, Multidisciplinary
Cong Liu, Shaohang Wu, Yanyan Gao, Yang Feng, Xinlong Wang, Yifei Xie, Jianzha Zheng, Hongbing Zhu, Zhiqiang Li, Ruud E. Schropp, Kai Shen, Yaohua Mai
Summary: This study successfully fabricates high-efficiency antimony selenosulfide solar cells using co-sublimation method and avoids toxic materials, such as cadmium compounds. By designing a graded bandgap profile for the absorber layer, the power conversion efficiency is further improved.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Physical
Yanyan Gao, Chong Liu, Yi Xie, Rilang Guo, Xuqi Zhong, Huanxin Ju, Li Qin, Peng Jia, Shaohang Wu, Ruud E. Schropp, Yaohua Mai
Summary: This study demonstrates the feasibility of using a nanosecond pulse laser to fabricate high-efficiency perovskite solar modules by reducing the heat-affected zone and improving the interconnection quality to overcome CTM efficiency losses.
ADVANCED ENERGY MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Cuiling Zhang, Chong Liu, Yanyan Gao, Shusheng Zhu, Fang Chen, Boyuan Huang, Yi Xie, Yaqing Liu, Mengen Ma, Zhen Wang, Shaohang Wu, Ruud E. Schropp, Yaohua Mai
Summary: Indoor photovoltaics (IPVs) are promising for powering the Internet of Things. The power conversion efficiency depends on the match between indoor light spectra and the band gap of the light absorbing layer. Metal-halide perovskites, with tunable band gaps, show potential but high bromine content leads to low open-circuit voltage (V-OC). By introducing iodine-rich compounds, the V-OC of perovskite IPVs can be increased up to 1.05 V under 1000 lux illumination, setting a record efficiency of 36.36%.
Article
Nanoscience & Nanotechnology
Jiayan Liu, Nana Liu, Gu Li, Yuqi Wang, Zhen Wang, Zhen Zhang, Dongdong Xu, Yue Jiang, Xingsen Gao, Xubing Lu, Shien-Ping Feng, Guofu Zhou, Jun-Ming Liu, Jinwei Gao
Summary: The poor interfacial contact and imperfections between the charge transport layer and perovskite film can lead to carrier recombination, inefficient charge collection, and inferior stability of perovskite solar cells (PSCs). To address this issue, a cinnamate-functionalized cellulose nanocrystals (Cin-CNCs) interfacial layer was introduced between SnO2 and the perovskite active layer. This improved the carrier transport ability, crystal growth, and long-term stability of PSCs. The results showed enhanced interfacial contact, cascade energy alignment, desirable perovskite film morphology, reduced interfacial defects, and suppressed charge recombination.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Bohao Yu, Fei Tang, Yuzhao Yang, Jincheng Huang, Shaohang Wu, Feiping Lu, Weiyuan Duan, Andreas Lambertz, Kaining Ding, Yaohua Mai
Summary: Atomic layer deposition (ALD) is an attractive technology for preparing sputtering buffer layers in semi-transparent perovskite solar cells (PSCs) and tandem solar cells. The ALD process can result in pin-hole layers due to island growth when the substrate is unreactive with the ALD reactants, which adversely affects anti-sputtering. In this study, ALD SnOx was used as the sputtering buffer layer in p-i-n structured PSCs, and impermeable ALD layers were formed by activating the unreactive substrate PCBM. The authors successfully fabricated ST-PSCs and perovskite/silicon tandem solar cells with high power conversion efficiencies (PCEs), as well as demonstrated the long-term stability of the devices.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Physical
Xiaoyang Liang, Yang Feng, Wei Dang, Hao Huang, Xinhua Wang, Yingnan Guo, Kai Shen, Ruud E. I. Schropp, Zhiqiang Li, Yaohua Mai
Summary: Antimony selenide (Sb2Se3) shows promise as a material for flexible and lightweight photovoltaic applications due to its unique one-dimensional crystal structure and low-temperature growth techniques. The introduction of a lead selenide (PbSe) transition layer at the buried back-contact interface improves the crystalline quality of Sb2Se3 and enhances hole extraction, resulting in a record efficiency of 8.43% for flexible Sb2Se3 photovoltaics.
ACS ENERGY LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Gu Li, Zhen Wang, Yuqi Wang, Zhengchi Yang, Pengyu Dong, Yancong Feng, Yue Jiang, Shien-Ping Feng, Guofu Zhou, Jun-Ming Liu, Jinwei Gao
Summary: This study introduces a simple and effective co-solvent engineering strategy to obtain pinhole-free and defect-less perovskite film without the use of anti-solvents. The addition of a co-solvent with strong coordination capacity and weak interaction with the main solvent allows for the fabrication of uniform and compact perovskite polycrystalline films. With the optimal co-solvent N-methylpyrrolidone (NMP) and without the use of anti-solvent, a champion power conversion efficiency (PCE) of 22% has been achieved. This strategy provides guidance for co-solvent selection in anti-solvent free perovskite solar cells (PSCs) and promotes their commercial application.
Article
Chemistry, Multidisciplinary
Yuqi Wang, Chao Yang, Zhen Wang, Gu Li, Zhengchi Yang, Xinyang Wen, Xiaowen Hu, Yue Jiang, Shien-Ping Feng, Yiwang Chen, Guofu Zhou, Jun-Ming Liu, Jinwei Gao
Summary: This study tackles the phase instability issue of FAPbI3 perovskites through a dual-strategy of self-assembly structure and in situ introduction of excess PbI2. The method enhances the film stability and efficiency, as well as improves moisture resistance and lifetime.
Article
Materials Science, Multidisciplinary
Jianfeng Ou, Xiaoyang Guo, Li Song, Jie Lin, Ying Lv, Yi Fan, Yantao Li, Deyue Zou, Zhiqiang Bao, Xingyuan Liu
Summary: This study introduces the effects of the ethanolamine (EA) interface and Tween 80 defect passivator on the morphology and performance of metal halide perovskite films and optoelectronic devices. The combined effect of EA and T80 leads to high efficiency luminescent devices, with detailed investigation revealing the mechanism of the EA interface. The introduction of EA results in a compact and pinhole-free perovskite film.
JOURNAL OF MATERIALS CHEMISTRY C
(2021)
