Article
Materials Science, Multidisciplinary
Ruiming Li, Jiali Peng, Yalun Xu, Wei Li, Lihao Cui, Yanyan Li, Qianqian Lin
Summary: Novel hybrid organic-inorganic perovskites combined with pseudohalide salts as additives have shown improved long-term stability and performance in photovoltaic devices, including extremely low dark current, fast response time, and high detectivity. This enhancement makes the materials more promising for applications in photodetection and other fields.
ADVANCED OPTICAL MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Meng Wang, Haoxuan Sun, Fengren Cao, Wei Tian, Liang Li
Summary: This study demonstrates a self-healing strategy using FAPbI(3) film and poly(vinyl alcohol) microscaffold to stabilize flexible perovskite devices and exhibit self-healing ability in high humidity environment.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Physical
Yi He, Zedong Lin, Jian Wang, Kai Zhang, Xiuwen Xu, Yu Li, Xianzhen Huang, Tingli Ma, Shuang Xiao, Shihe Yang
Summary: Halide perovskites are promising materials for optoelectronic devices due to their outstanding properties and relatively low cost. However, the instability of common precursor solutions hampers large-scale low-cost production. In this study, a solid-liquid convertible perovskite precursor was developed using water, which exhibited high damp air stability and processibility for perovskite growth. By guiding the growth direction of perovskite, the film quality was significantly improved. The precursor was successfully used for fabricating self-driven halide perovskite photodetectors with low noise current, high specific detectivity, and high stability.
Article
Chemistry, Multidisciplinary
Chwen-Haw Liao, Chiung-Han Chen, Jueming Bing, Christopher Bailey, Yi-Ting Lin, Twishi Mukul Pandit, Laura Granados, Jianghui Zheng, Shi Tang, Bi-Hsuan Lin, Hung-Wei Yen, Dane R. McCamey, Brendan J. Kennedy, Chu-Chen Chueh, Anita W. Y. Ho-Baillie
Summary: The first inorganic-cation pseudohalide 2D phase perovskite single crystal Cs2Pb(SCN)(2)Br-2 is reported in this study, synthesized by the antisolvent vapor-assisted crystallization method at room temperature. This 2D single crystal exhibits a low exciton binding energy and demonstrates respectable responsivity and detectivity at low bias voltage.
ADVANCED 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
Chemistry, Multidisciplinary
Shun-Xin Li, Hong Xia, Lei Wang, Xiang-Chao Sun, Yang An, He Zhu, Ben-Feng Bai, Hong-Bo Sun
Summary: Assembling perovskites into heterojunctions can achieve high-performance photodetectors, and lateral heterojunctions can improve performance and stability. In this study, a two-step imprinting method was developed to fabricate high-performance photodetectors with ultra-high polarization sensitivity and long-term stability.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Do Hyung Chun, Seongchan Kim, Jumi Park, SunJe Lee, Wook Kim, Jung Hwan Lee, Ryan Rhee, Tae Gyun Kim, Dae Geun Choi, Dukhyun Choi, Dongho Kim, Jeong Ho Cho, Jong Hyeok Park
Summary: Nanoimprinting lithography (NIL) technique is widely used for nanostructure engineering of soft materials. In this study, a defect-free nanopatterned-(FAPbI(3))(0.85)(MAPbBr(3))(0.15) (NP-FAMA) film is successfully developed by optimizing the NIL process. Surface energy control plays a crucial role in NIL process, and treatment of the polymeric mold prevents peeling-off issues. NP-FAMA shows enhanced crystallographic and photophysical properties, and the photoresponsivity of NP-FAMA-based photodetectors outperform other devices.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Paul-Henry Denis, Martijn Mertens, Wouter T. M. Van Gompel, Arthur Maufort, Sigurd Mertens, Zimu Wei, Melissa Van Landeghem, Sam Gielen, Bart Ruttens, Davy Deduytsche, Christophe Detarvernier, Laurence Lutsen, Ferdinand Grozema, Koen Vandewal, Dirk Vanderzande
Summary: 3D hybrid perovskites have shown excellent performance in optoelectronic materials, but suffer from environmental instability. This study successfully stabilized the desired black phase and improved material stability and optoelectronic performance by adjusting the organic cation.
ADVANCED OPTICAL MATERIALS
(2022)
Article
Chemistry, Physical
Chao Liang, Hao Gu, Junmin Xia, Tanghao Liu, Shiliang Mei, Nan Zhang, Yonghua Chen, Guichuan Xing
Summary: A high-performance photodetector based on single-crystal-like phase-pure 2DRP perovskite films is reported by designing a novel spacer source. Experimental and theoretical evidence shows that phase-pure films substantially enhance the performance and stability of optoelectronic devices.
Article
Chemistry, Multidisciplinary
Yue Fu, Meng Yuan, Yingjie Zhao, Meiqiu Dong, Yangwu Guo, Kui Wang, Chunqi Jin, Jiangang Feng, Yuchen Wu, Lei Jiang
Summary: In this study, gradient bandgap-tunable perovskite microwire arrays with excellent crystallinity and pure crystallographic orientation were fabricated by the capillary-bridge assembly method and mild component engineering processing. The integrated color-cognitive devices achieved a spectral resolution of 14 nm ranging from 405 nm to 760 nm, responsivities over 10(3) A W-1, and detectivities over 10(15) Jones. Furthermore, the integrated flexible color-cognitive devices demonstrated accurate recognition of similar colors, which can be applied in color blindness correction. The efficient color recognition performances and flexible processing provide new opportunities for on-chip integration of wearable devices based on microwire arrays.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Engineering, Environmental
Yue Li, Qian-Li Li, Yan Li, Yun-Ling Yang, Shao-Lin Zhang, Jingtai Zhao, Jieqiong Wan, Zhijun Zhang
Summary: Methylammonium lead halide perovskites have poor stability towards moisture. Strategies such as encapsulation and surface engineering can improve moisture stability and optical/electronic performance. In this study, a hydrophobic polymer matrix was used for encapsulation, resulting in a composite film with enhanced fluorescence and improved luminous efficiency. The film also showed high sensitivity and low detection limit for X-ray irradiation.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Miao He, Zhuhua Xu, Cong Zhao, Yu Gao, Kanghui Ke, Na Liu, Xiongxian Yao, Feiyu Kang, Yang Shen, Liwei Lin, Guodan Wei
Summary: Sn-based perovskite materials show promise as lead-free alternatives in thin film photodetectors, but achieving high sensitivity, ultrafast response, and stability has been a challenge. By introducing the PEA(+) additive, the researchers were able to improve the performance of the FASnI(3) thin film photodetector. The resulting FA(0.8)PEA(0.2)SnI(3) thin films exhibited highly crystalline order and flexibility, with a self-powered photodetector demonstrating excellent responsivity and fastest rise and decay time compared to other Sn-based perovskite photodetectors.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Alexandr A. Marunchenko, Mikhail A. Baranov, Elena Ushakova, Daniil R. Ryabov, Anatoly P. Pushkarev, Dmitry S. Gets, Albert G. Nasibulin, Sergey Makarov
Summary: The use of single-walled carbon nanotube (SWCNT) thin films as electrodes enables highly responsive and stable flexible perovskite photodetectors, demonstrating their potential in high-performance flexible devices.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Zhengxun Lai, You Meng, Qi Zhu, Fei Wang, Xiuming Bu, Fangzhou Li, Wei Wang, Chuntai Liu, Feng Wang, Johnny C. Ho
Summary: This study successfully prepared quasi-2D perovskite films with graded phase distribution using a one-step spin-coating method, and constructed self-powered vertical-structure photodetectors, showing impressive performance with high responsivity and fast response speed. These results highlight the potential of graded quasi-2D perovskite phases for next-generation optoelectronic devices.
Article
Chemistry, Multidisciplinary
Yingjie Zhao, Xing Yin, Zhenkun Gu, Meng Yuan, Jianpeng Ma, Tenglong Li, Lei Jiang, Yuchen Wu, Yanlin Song
Summary: Polymerized chiral perovskite single-crystal films were successfully prepared, showing potential applications in circularly polarized light detection.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Review
Chemistry, Multidisciplinary
Maning Liu, Haichang Zhang, Dawit Gedamu, Paul Fourmont, Heikki Rekola, Arto Hiltunen, Sylvain G. Cloutier, Riad Nechache, Arri Priimagi, Paola Vivo
Article
Energy & Fuels
Ivy M. Asuo, Ibrahima Ka, Dawit Gedamu, Alain Pignolet, Riad Nechache, Sylvain G. Cloutier
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2019)
Article
Chemistry, Physical
Shyamashis Das, Paul Fourmont, Daniele Benetti, Sylvain G. Cloutier, Riad Nechache, Zhiming M. Wang, Federico Rosei
JOURNAL OF CHEMICAL PHYSICS
(2020)
Article
Energy & Fuels
Ivy M. Asuo, Soraya Bouzidi, Ibrahima Ka, Federico Rosei, Alain Pignolet, Riad Nechache, Sylvain G. Cloutier
Summary: The study presents a new CuSCN layer as an alternative to conventional Spiro-OMeTAD HTM in solar cells. Solar cells made with CuSCN achieve high power conversion efficiency and remarkable ambient stability, while photodetectors with CuSCN exhibit high specific detectivity. Solution-processed devices show impressive performances, representing a significant step towards large-scale fabrication of efficient and stable perovskite-based optoelectronic technologies.
Article
Materials Science, Multidisciplinary
Ivy M. Asuo, Debika Banerjee, Alain Pignolet, Riad Nechache, Sylvain G. Cloutier
Summary: The hybrid photodetector fabricated with a halide perovskite and silicon nanowire heterojunction shows excellent spectral responsivity, high specific detectivity, fast rise/fall times, and good stability under ambient conditions, offering great potential for future integrated optoelectronic devices.
PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS
(2021)
Article
Nanoscience & Nanotechnology
Paul Fourmont, Riad Nechache, Sylvain G. Cloutier
Summary: This study reported on the fabrication of highly efficient and reusable BiFeO3 nanofiber-based membranes for photo-activated organic pollutant removal with negligible colloidal release. Metal-enhanced photocatalytic properties were achieved by coating the nanofiber membranes with a few nanometers of platinum. The optimized photocatalyst showed impressive removal efficiency under solar illumination, making it ideal for large-scale deployment.
ACS APPLIED NANO MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Xiaohang Guo, Debika Banerjee, Ivy M. Asuo, Francois-Xavier Fortier, Moulay Ahmed Slimani, Sylvain G. Cloutier
Summary: In this study, three different configurations of photodetectors were fabricated and characterized using digital inkjet printing techniques on different silicon substrates. Among the comparison batches, digitally printed devices on chemically nanostructured n-type silicon with Ag nanoparticle-induced enhancement showed the highest photocurrent enhancement factor, the lowest rise and decay times, and the highest responsivity. These devices also demonstrated high stability, losing less than 3% of their efficiency over 60 days under ambient conditions. The simple device architecture and effective digital fabrication process hold promise for efficient, stable, and low-cost photodetectors at large scales.
Article
Chemistry, Multidisciplinary
Thameur Hajlaoui, Catalin Harnagea, Alain Pignolet
Summary: Multiferroic thin films are promising materials that integrate multiple functionalities. Novel multiferroic heterostructures, combining good ferroelectric and ferromagnetic properties and a strong coupling between them, have been developed. Ba2EuFeNb4O15/BaFe12O19 multiferroic magnetoelectric bilayers were epitaxially grown on niobium doped SrTiO3 substrates. The heterostructure demonstrated both ferroelectric and magnetic properties at room temperature, and a strong magnetoelectric coupling was observed. The coupling is mediated by elastic strain at the interfaces.
Article
Chemistry, Multidisciplinary
Ifeanyichukwu C. Amaechi, Andreas Ruediger, Alain Pignolet
Summary: We conducted systematic measurements on bismuth titanate powders to study the Raman frequency shift, omega, and full width at half maximum (FWHM) of optical phonons at q = 0. The observed shift and broadening of the ferroelectric soft phonon mode at 42 cm(-1) can be reasonably explained by the effects of particle size and phonon confinement. We found that the lattice parameter varies linearly with particle size, and the size-dependent Raman shift and linewidth broadening follow a power law of omega proportional to x(-0.73) and Gamma proportional to x(-0.38), respectively. Additionally, a single phonon coupling term corresponding to a three-phonon anharmonic process is sufficient to describe the phonon coupling decay resulting from the softening of this strongly overdamped phonon mode.
Article
Engineering, Electrical & Electronic
Paul Fourmont, Yin Bai, Francois-Xavier Fortier, Sylvain G. Cloutier
Summary: This study successfully produces serigraphic-grade BiFeO3-based ink formulations and mixes them with graphene to enhance the performance of screen-printed thermistor devices. The best-performing devices have a loading of 3.5 wt% graphene and exhibit high sensitivity, low hysteresis, and stability.
ACS APPLIED ELECTRONIC MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Paul Fourmont, Sylvain G. Cloutier
Summary: Colloidal-free screen-printed p-n BiOCl/BiFeO3 heterojunctions have been synthesized for efficient photocatalytic degradation of Rhodamine B using visible light. Deposition of platinum as a cocatalyst using sputtering technique enhances the degradation efficiency.
Article
Materials Science, Multidisciplinary
Ivy M. Asuo, Dawit Gedamu, Nutifafa Y. Doumon, Ibrahima Ka, Alain Pignolet, Sylvain G. Cloutier, Riad Nechache
MATERIALS ADVANCES
(2020)