Article
Energy & Fuels
Wei Gao, Francis R. Lin, Alex K-Y Jen
Summary: This article focuses on the development of near-infrared nonfullerene acceptors (NFAs) in organic solar cells (OSCs), discussing their molecular design strategies, structure-property-performance relationships, and the potential in fabricating ternary and tandem OSCs. Outlooks for future design of NIR NFAs are also provided, considering material stability and production cost based on current knowledge, in hope of aiding the further development of the field.
Article
Polymer Science
You-wen Pan, Li-ting Tao, Jian Gao, Cheng-liang He, Zhi-xin Liu, Yan-jun Fang, Min-min Shi, Hong-zheng Chen
Summary: An A-D-A type organic electron acceptor, TCIC, was designed and synthesized to achieve high photoelectric responses in the near-infrared (NIR) region. The self-powered organic photodetectors (OPDs) based on PCE10:TCIC blended films exhibit excellent performance across a broad spectrum range, matching well with the commonly used polymer donor, PCE10.
ACTA POLYMERICA SINICA
(2022)
Article
Chemistry, Applied
C. Mahmoudi, W. Muzuzu, S. Fall, Y. Zhong, C. Melart, P. Leveque, T. Heiser, N. S. Jaballah, M. Majdoub, N. Leclerc
Summary: This article describes the synthesis of two new dumbbell-shaped small molecules used as near ultra-violet absorbers for transparent organic solar cell application and discusses their structure and properties.
Article
Nanoscience & Nanotechnology
Gurudutt Bhat, Qian Liu, Marcin Kielar, Yuya Hamada, Tsuyoshi Michinobu, Pankaj Sah, Aung Ko Ko Kyaw, Ajay K. Pandey, Prashant Sonar
Summary: Organic photodetectors (OPDs) are promising for next-generation digital imaging and wearable sensors due to their low cost and high performance, with NIR photon detection improved through donor-acceptor molecular engineering. The novel IDT-based polymers show great potential in enhancing light detection in OPDs.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Materials Science, Multidisciplinary
Sicheng Wu, Weilong Xing, Mengsu Zhu, Ye Zou, Yimeng Sun, Wei Xu, Daoben Zhu
Summary: The study found that both PTbTTVT and PTbTTVT-F exhibited good thermoelectric performance with the best power factor (PF) exceeding 35 μW m(-1) K-2. Despite PTbTTVT-F having worse hole mobility than PTbTTVT, it could achieve similar or even superior PF with suitable dopants. This suggests that polymers with less ordered stacking may be more tolerant to dopant disruption, and utilizing amorphous materials with high mobility could be a useful strategy for developing high-performance organic thermoelectric materials (OTEs).
JOURNAL OF MATERIALS CHEMISTRY C
(2021)
Article
Materials Science, Multidisciplinary
E. Ponizovskaya Devine
Summary: In this study, vertically illuminated Si-compatible mid-infrared photodetectors based on graphene forming negative-index metamaterial are presented. The research focuses on a low-loss metamaterial structure with nano/microholes through 2D materials, supporting resonance and enhancing quantum efficiency across a wide range of incident angles.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2021)
Article
Nanoscience & Nanotechnology
Shiling Shi, Shimin Zhang, Zhongyuan Xue, Xiang Yao, Guangcong Zhang, Jiaxing Gao, Yanru Li, Xueyang Tu, Shengnan Zhang, Chan Zhang, Zhongwei Liu, Zheng Tang, Hongliang Zhong, Weiwei Li, Zhuping Fei
Summary: This study uses an imide-containing unit to construct a new end group for 2-(3-oxo-2,3-dihydro-1H-inden-1-ylidene)malononitrile (IC), and synthesizes a series of new electron acceptors based on this end group. The electron-deficient nature of imide units enables the new acceptors to show efficient intramolecular charge transfer and red-shifted absorption spectra compared to their IC counterparts. These new electron acceptors achieve efficiencies of over 17% with a low voltage loss of 0.52 eV, demonstrating the promising nature of imide-containing end groups for high-performance organic solar cells (OSCs).
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
Yanglin Zhao, Nan Chen, Baozhong Deng, Lifang Wu, Shenghao Wang, Bruno Grandidier, Julien Proust, Jerome Plain, Tao Xu
Summary: High-performance near-infrared (NIR) narrowband organic photodetectors (OPDs) can be achieved by employing a suitable optical design and light manipulation strategy. This has significant implications for applications such as wireless optical communication and light detection.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Polymer Science
Jiwoong Noh, Chang Eun Song, Du Hyeon Ryu, Dakyeung Oh, Joonghan Kim, Won Suk Shin, In-Nam Kang
Summary: A series of novel polymers based on benzo[1,2-b:4,5-b]dithiophene and thieno[3,4-b]thiophene were synthesized and combined with a nonfullerene acceptor to fabricate efficient organic solar cells. The superior performance of the PBDTTT-2F:IT-4F device over the PBDTTT-3F:IT-4F device is attributed to enhanced exciton dissociation, reduced charge recombination, and high carrier mobility.
Article
Materials Science, Multidisciplinary
Jin He, Zhi Wang, Yerun Gao, Xinyu Yu, Weiguo Qiao, Ming Shao, Zhong'an Li
Summary: By developing conjugated pyrrolic polysquaraines with ultralow dark current density as photoactive materials, high-performance near-infrared organic photodetectors with high detectivity were achieved.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Nan Zhang, Liangwei Wu, Wei Gao, Qixiao Zhao, Nengjie Huo, Jingbo Li
Summary: A two-dimensional polarization-sensitive, self-powered, and near-infrared photodetector is constructed by vertically stacking multilayer GeSe on MoTe2. The device exhibits broadband spectral coverage, high responsivity, and detectivity, as well as polarization-sensitive photodetections.
ADVANCED MATERIALS INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Qingkai Wang, Yajie Zhang, Zhixiang Wei
Summary: Near infrared light organic photodetectors have gained significant attention for their tunable response, easy processing, compatibility with flexible substrate, room temperature operation, and broad range of applications. Recent improvements in important performance metrics have allowed organic photodetectors to catch up and even surpass inorganic photodetectors in certain areas. This review summarizes the research progress of panchromatic and narrowband near infrared light organic photodetectors, including their working mechanism, strategies for achieving narrowband detection, and practical applications. The development challenges of near infrared light organic photodetectors are also discussed.
CHINESE JOURNAL OF CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Binghao Wang, Alberto D. Scaccabarozzi, Haoyang Wang, Mari Koizumi, Mohamad Insan Nugraha, Yuanbao Lin, Yuliar Firdaus, Yan Wang, Sunghoon Lee, Tomoyuki Yokota, Thomas D. Anthopoulos, Takao Someya
Summary: This study introduces three different molecular dopants for organic photodetectors (OPDs) to improve their performance in the near-infrared spectrum, achieving low dark current, high detectivity, and good environmental stability for approximately 2 months. These doped OPDs can also be used for pulse wave monitoring, displaying stable waveforms and distinguishing heartbeat rates.
JOURNAL OF MATERIALS CHEMISTRY C
(2021)
Article
Materials Science, Multidisciplinary
Jintao Zhu, Zhuohan Zhang, Yifan Lv, Ai Lan, Hong Lu, Hainam Do, Fei Chen
Summary: In this study, thiophene[3,2-b] pyrrole (TP) was utilized to create two new fused-ring conjugated nonfullerene acceptors (NFAs), which exhibited high LUMO energy levels and excellent film-forming properties. PTBTP-4F, with a stronger electron-withdrawing unit IC-2F, showed red-shifted absorptions compared to PTBTP-2F, resulting in slightly better performance when blended with donor PBDB-T.
ORGANIC ELECTRONICS
(2022)
Article
Chemistry, Multidisciplinary
Zeyu He, Xiaoyang Du, Caijun Zheng, Xin Yu, Hui Lin, Silu Tao
Summary: Near-infrared organic photodetectors (NIR-OPDs) hold great potential in biomedicine applications due to their wearable, noninvasive, and low-cost advantages. In this study, high-performance NIR-OPDs with synchronous optical output were developed, allowing for practical biodetection and bioimaging. The results showed that the NIR-OPDs exhibited excellent performance, enabling direct pathology imaging and providing important clues for clinical diagnosis.
Article
Materials Science, Multidisciplinary
Mingchen Xie, Jiaheng Cai, Xueqi Wang, Tong Shan, Sinyeong Jung, Hongliang Zhong, Xiaojun Guo, Dongying Zhou, Tao Li
Summary: A new family of phenazine-based compounds is synthesized to achieve multicolored emission. The emitters have unique excited states and possess thermally activated delayed fluorescence properties. The rigid structure of phenazine and steric hindrance of donors are utilized to suppress nonradiative consumption and regulate the luminescence color. Organic light-emitting diodes exhibit superior multicolored emission.
ADVANCED OPTICAL MATERIALS
(2022)
Article
Engineering, Electrical & Electronic
Xiao Hou, Sujie Chen, Wei Tang, Jianghu Liang, Bang Ouyang, Ming Li, Yawen Song, Tong Shan, Chun-Chao Chen, Patrick Too, Xiaoqing Wei, Libo Jin, Gang Qi, Xiaojun Guo
Summary: A facile blade-coating process is developed for large-area deposition of uniform thick organic active layers in organic photodiodes (OPDs). A large-area semi-transparent top metal electrode is deposited using thermal evaporation with an optimal deposition rate, achieving a good balance between transparency and conductivity for top illumination integration. The maximum process temperature of the OPD is 85 degrees C, ensuring the performance of the underlying organic thin-film transistor (OTFT) is not affected. Based on this integration structure and processes, an all-organic integrated flexible active-matrix imager is developed, which has the largest size, highest resolution, and lowest process temperature reported so far for OPD-based imagers.
IEEE JOURNAL OF THE ELECTRON DEVICES SOCIETY
(2022)
Article
Chemistry, Analytical
Qiaowei Chen, Chen Yuan, Zhilong He, Jin Wang, Chunyang Zhai, Duan Bin, Mingshan Zhu
Summary: S, N co-doped graphene quantum dot (S, N-GQD) materials were synthesized and used as photosensitive materials in a label-free photoelectrochemical (PEC) sensor. The materials exhibited enhanced photocurrent response towards Bisphenol A (BPA) sensing, improved charge transfer rate, and increased absorption of visible light. The sensor showed linear current response to BPA within two ranges, with a detection limit of 0.04 μM and good stability and interference immunity.
Article
Chemistry, Multidisciplinary
Qilai Chen, Tingting Han, Jianmin Zeng, Zhilong He, Yulin Liu, Jinglin Sun, Minghua Tang, Zhang Zhang, Pingqi Gao, Gang Liu
Summary: This study demonstrates the implementation of in-sensor computing, which can simultaneously output image information and recognition results by controlling the photosensitivity of the sensor. The researchers utilized a specific perovskite material with high photoresponsibility and external quantum efficiency to achieve enhanced efficiency in machine vision. By adjusting the internal ion migration and readout voltage, the device exhibited a significantly enhanced photoresponsibility. A proof-of-concept visually enhanced neural network system was developed using the switchable photosensitivity of the perovskite sensor array, resulting in improved object recognition accuracy in low-light environments.
Article
Chemistry, Physical
Xiaoxiao Huang, Zhi-Long He, Yangpeng Chen, Qiyan Xu, Mingshan Zhu, Chunyang Zhai
Summary: In this study, a self-standing three-dimensional nanosheet assembly PdAu nanoflower with local surface plasmon resonance effect is fabricated for efficient catalytic methanol oxidation reaction (MOR). The Pd1Au1 nanoflower electrocatalyst exhibits superior mass activity and the catalytic activity is further enhanced under visible light illumination, indicating a photo-electrocoupling CO-free dominant mechanism.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Physical
Yi Zhang, Yan Wang, Tong Shan, Hongliang Zhong
Summary: Benefiting from simple building blocks and facile synthetic processes, IDIC derivatives based on the IDT core and IC terminal groups have been widely studied in organic solar cells. This work modifies the IDIC molecule through alternating the terminal groups and molecular symmetry, resulting in an asymmetric material ID2F-C8 with improved photovoltaic performance.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Engineering, Environmental
Tong Shan, Yongmei Wang, Qiaomei Chen, Zhongyuan Xue, Xiaojun Guo, Weiwei Li, Hongliang Zhong
Summary: A new device engineering, additive-assisted fluorous solvent soaking (AFSS), has been developed as an alternative approach for flexible and large-area organic solar cells (OSCs) fabrication. This method utilizes a mixture of fluorous solvent and a small amount of solvent additive to optimize the morphology of the active layer at a relatively low temperature. The AFSS method shows improved effectiveness in various OSCs, including both rigid and flexible substrates and different device architectures.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Shuzhi Liu, Zhilong He, Bin Zhang, Xiaolong Zhong, Bingjie Guo, Weilin Chen, Hongxiao Duan, Yi Tong, Haidong He, Yu Chen, Gang Liu
Summary: A high-performance artificial synapse with nonvolatile memory and low power consumption is created using a proton-reservoir type TPPS molecule and fabricated organic protonic memristors. The synapse exhibits effective and nonvolatile modulation of device conductance, ultra-low power consumption, and long-term stability, and demonstrates synaptic plasticity characteristics.
Article
Chemistry, Multidisciplinary
Yi Zhang, Chunyang Yu, Tong Shan, Yan Chen, Yan Wang, Mingchen Xie, Tao Li, Zhibin Yang, Hongliang Zhong
Summary: The research introduces multiple non-covalent interactions induced by the fluorine atom to control the conformational interconversion of conjugated molecules. The film-formation process has minimal effect on the conformation due to the presence of multiple non-covalent interactions. This study reveals the impact of rotational isomerism on optoelectronic properties, paving the way for tuning the performance of organic semiconductors through controlling molecular conformation with multiple non-covalent interactions.
CELL REPORTS PHYSICAL SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Qingyun Wei, Yi Zhang, Tong Shan, Hongliang Zhong
Summary: Researchers designed two new polymers, 44-PTB and 66-PTB, for semi-transparent organic solar cells. Thanks to the unique structure and absorption characteristics of 66-PTB, it achieved a high power conversion efficiency while maintaining a high visible light transmittance.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
