Article
Engineering, Electrical & Electronic
Yu-Hsun Nien, Shang-Wen Zhuang, Jung-Chuan Chou, Chih-Hsien Lai, Po-Yu Kuo, Po-Hui Yang, Po-Feng Chen, Yu-Han Huang
Summary: Hollow microsphere structure nickel sulfide (NiS) particles were prepared using a hydrothermal method. NiS/titanium dioxide nanofibers (NiS/TiO2 NFs) were prepared by adding NiS into TiO2 nanofibers through electrospinning. Dye-sensitized solar cells (DSSCs) with NiS/TiO2 NFs photoanode showed a photovoltaic conversion efficiency (PCE) of 5.63%, which is 40.75% higher than that of DSSCs without modification. The increased specific surface area of the hollow microsphere structure of NiS and the higher porosity provided by NiS/TiO2 NFs contributed to enhanced dye adsorption and reduced transmission resistance in the DSSCs, leading to the improved performance.
IEEE TRANSACTIONS ON ELECTRON DEVICES
(2023)
Article
Energy & Fuels
Tansir Ahamad, Ali Aldalbahi, Saad M. Alshehri, Salem Alotaibi, Shaykha Alzahly, Zhen-Bo Wang, Peter X. Feng
Summary: Hierarchical bismuth ferrite (BFO) and Ag2O-doped bismuth ferrite (Ag2O/BFO) nanostructures were successfully fabricated in this study and applied in the photoanode of dye-sensitized solar cells (DSSCs) with improved energy conversion efficiency. Doping BFO with silver oxide nanoparticles can enhance electron transportation and reduce photogenerated charge recombination, making it a potential candidate for working electrode materials in DSSCs.
Article
Materials Science, Multidisciplinary
M. T. Sarode, Umesh T. Nakate, S. U. Ekar, Yogesh T. Nakate, S. R. Jadkar, B. B. Kale, K. C. Mohite, Y. B. Khollam
Summary: This study demonstrates the photovoltaic properties of Eosin-Y dye-sensitized N-doped TiO2 photoanodes. N-doped TiO2 photoanodes were prepared using the sol-gel method followed by specific treatment. These photoanodes were then analyzed using various techniques. The results show that N doping leads to lattice disorder effects and the formation of midgap electronic states, resulting in a narrowing of the energy band gap. The presence of a large porous structure, which provides optimal visible light absorption and dye absorption, is considered crucial for achieving good photovoltaic performance.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2022)
Article
Engineering, Electrical & Electronic
Yu-Hsun Nien, Yi-Ting Wu, Jung-Chuan Chou, Po-Hui Yang, Chih-Sung Ho, Chih-Hsien Lai, Po-Yu Kuo, Ruei-Hong Syu, Shang-Wen Zhuang, Po-Feng Chen
Summary: This study investigates the improvement of photovoltaic performance of dye-sensitized solar cells (DSSCs) through the modification of the photoanode with PbTiO3-ZnFe2O4/TiO2 nanofibers. The results show that the DSSC with flake-like PbTiO3-ZnFe2O4/TiO2 nanofibers attached to the TiO2 layer exhibits the highest photovoltaic conversion efficiency (77) of 5.87%, compared to the DSSC without modification (4.17%). The improved performance is attributed to the large surface area of the nanofibers for N719 adsorption and low charge recombination rate.
IEEE TRANSACTIONS ON ELECTRON DEVICES
(2023)
Article
Materials Science, Multidisciplinary
Fengjuan Miao, Bingcheng Sun, Bairui Tao, Yanchun Wang, Paul K. Chu
Summary: This paper demonstrates the application of a novel ternary nanocomposite MoS2/Ag/TiO2 photoanode in high efficiency plasma dye sensitive solar cell. The ternary nanocomposite MoS2/Ag/TiO2 was successfully synthesized without any hazardous substances. The addition of MoS2 improves the light absorption ability and electron transfer rate of the photoanode, leading to a significant enhancement in the photoelectric conversion efficiency of the dye sensitive solar cell.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Energy & Fuels
Fatemeh Ziaeifar, Amin Alizadeh, Zahra Shariatinia
Summary: Tri-layered photoanodes were fabricated to enhance the photovoltaic efficiency of dye sensitized solar cells (DSSCs), and different AlMo0.5O3/TiO2 nanocomposites were achieved by adding AlMo0.5O3 nanoparticles. These composites significantly improved the charge transfer in the device and led to enhanced power conversion efficiency.
Article
Materials Science, Multidisciplinary
Dahyunir Dahlan, Marjoni Imamora Ali Umar, Siti Naqiyah Sadikin, Jaenudin Ridwan, Akrajas Ali Umar
Summary: This study reports that magnesium doping can enhance the photovoltaic performance of dye-sensitized solar cells by passivating electron traps and improving interfacial charge transfer.
Article
Spectroscopy
Zahra Shariatinia, Amin Alizadeh, Mostafa Roudgar-Amoli, Melika Mahmoudi
Summary: To develop efficient photoelectrode nanomaterials for DSSCs, spinel ZnFe2O4 and Ag-doped ZnFe2O4 nanomaterials were incorporated into TiO2 photoanodes. The highest efficiency of 3.89% was achieved with TiO2 + 5 wt% ZnFe2O4 photoanode. The addition of Ag+ cations further improved the power conversion efficiency. The DSSC assembled using TiO2 + 5 wt% Ag0.2Zn0.90Fe2O4 photoanode achieved the highest PCE of 5.75%.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Chemistry, Physical
K. Silambarasan, S. Harish, K. Hara, J. Archana, M. Navaneethan
Summary: In this study, N-GQD@MoS2@rGO nanocomposite material was synthesized and its morphology, chemical composition, and electrochemical properties on dye-sensitized solar cells were investigated. The results from cyclic voltammetry analysis and photovoltaic power conversion efficiency measurement indicated that N-GQD@MoS2@rGO exhibited superior catalytic performance compared to other materials.
Article
Chemistry, Physical
Radhika Rajendhiran, Venugopal Deivasigamani, Jayabal Palanisamy, Selvakumar Pitchaiya, Nandhakumar Eswaramoorthy, Saravanakumar Masan
Summary: In this study, spherical titanium dioxide nanoparticles were synthesized using Plectranthus amboinicus leaf extract and utilized in dye-sensitized solar cells. Characterization techniques such as XRD, SEM, UV-Vis, and FTIR confirmed the crystal structure, morphology, bandgap energy, and chemical composition of the nanoparticles. The DSSCs assembled with these nanoparticles showed a solar to electrical energy conversion efficiency of 1.3% under illumination.
Article
Materials Science, Multidisciplinary
S. Vibavakumar, K. D. Nisha, V. S. Manikandan, J. Archana, M. Navaneethan, S. Harish
Summary: This work aims to improve the photovoltaic parameters in DSSCs by introducing a bilayer photoanode composed of Nb2O5 and TiO2. The microstructural, crystalline, and morphological properties of the Nb2O5/TiO2 bilayer were analyzed. The charge transfer processes and electron behavior in the bilayer photoanode were investigated, showing significantly lower charge transfer resistance and improved electron lifetime.
Article
Materials Science, Multidisciplinary
Anurag Roy, Shubhranshu Bhandari, Senthilarasu Sundaram, Tapas K. Mallick
Summary: The research utilized CeO2 nanoparticles as a light scattering layer, combined with anatase TiO2 nanocubes film to fabricate a CeO2-TiO2 hybrid photoanode, which significantly improved the power conversion efficiency of DSSCs.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Materials Science, Multidisciplinary
Haoran Yan, Minghan Chen, Wenbo Liu, Peiyun Wang, Menglin Liu, You Liu, Longqiang Ye, Mengmeng Gu
Summary: To enhance the power conversion efficiency (PCE) of dye-sensitized solar cells (DSSCs), niobium oxide and Ti3C2 quantum dots were introduced into the photoanode, resulting in improved photocurrent and efficiency. The DSSC device with the composite photoanode achieved a remarkable PCE of 7.24%, surpassing the standard device's efficiency of 4.60%.
Article
Chemistry, Physical
Ikhtiar Ahmad, Rashida Jafer, Syed Mustansar Abbas, Nisar Ahmad, Ata-ur-Rehman, Javed Iqbal, Shahid Bashir, Ammar A. Melaibari, Muhammad Haleem Khan
Summary: In this study, cobalt-reduced graphene oxide co-doped TiO2 nanoparticles were synthesized to enhance the efficiency of dye-sensitized solar cells (DSSCs). The newly synthesized material showed improved photovoltaic properties, with higher short circuit current density and overall power conversion efficiency.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Sanjay Kumar Swami, Neetesh Kumar, Daniela R. Radu, Sung Woon Cho, Jongsu Lee
Summary: In this study, a post-lithium (Li) treatment on TiO2 films was performed to enhance the optoelectronic features and power conversion efficiency (PCE) of dye-sensitized solar cells (DSSCs). The Li treatment reduced defects and improved the crystallinity of the TiO2 films. DSSCs fabricated using Li-treated TiO2 films as photoanodes showed a performance improvement of approximately 20% and a PCE of 10.5%, compared to the control DSSC with a PCE of 8.7%. The enhanced performance was attributed to improved structural properties, efficient charge transport, and suppression of recombination due to the passivation of trap states.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Engineering, Environmental
Haijun Sun, Baohao Zhang, Lu Lu, Ziyan Chen, Yaqing Huo, Wenqing Li, Bao Zhang, Jian Song
Summary: In this study, a novel dual-network eutectogel with excellent comprehensive properties was developed for wearable devices. It exhibited remarkable stretchability, self-recovery, stability over a wide temperature range, robust adhesion, and good conductivity. Based on these properties, a temperature sensor with high sensitivity and wearable strain and pressure sensors with high sensitivity, wide range, and stability were fabricated for real-time monitoring of human activities.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Yuxuan Yang, Tao Zhao, Ming-Hua Li, Xiaoxue Wu, Mingyue Han, Shih-Chi Yang, Qiaoling Xu, Lede Xian, Xiang Chi, Ning-Jiu Zhao, Hong Cui, Sihan Li, Jin-Song Hu, Bao Zhang, Yan Jiang
Summary: A nitrogen-donor crown ether is developed as a positive defect passivator in metal-halide perovskite solar cells, reducing the electron trap density and improving the build-in potential. The addition of a small amount of nitrogen-donor crown ether significantly enhances the efficiency and stability of the solar cells.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Ting Li, Minghui Chen, Quan Shi, Ji Xiong, Yaqing Feng, Bao Zhang
Summary: TE-POPs, a pyridinium-based ionic porous organic polymer, was synthesized via a one-pot method and exhibited high thermal and chemical stability. It showed great CO2 adsorption capacity and could efficiently catalyze CO2 and epichlorohydrin to produce chloropropylene carbonate without the need for co-catalysts or metals. Additionally, it displayed a wide substrate scope and excellent recyclability, making it a promising heterogeneous catalyst for CO2 cycloaddition.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Physical
Wentao Chen, Yuqiong Huang, Hong Cui, Sihan Li, Yaqing Feng, Bao Zhang
Summary: By incorporating 2,6-diaminopyridine (TNPD) as a nucleating agent, the growth of Pb-Sn perovskites in tin-lead perovskite solar cells (PSCs) can be modulated, resulting in an improved power conversion efficiency (PCE). TNPD induces crystal growth during nucleation, forms a protective film on the crystal surface, and releases micro-strain generated during film growth. Additionally, TNPD reduces defect density by screening the perovskite against oxygen and synergistically bonding with undercoordinated Sn/Pb on the surface. As a result, a high open circuit voltage and PCE of 0.85 V and 20.35% are achieved in Pb-Sn PSCs, respectively, along with improved stability.
Article
Chemistry, Multidisciplinary
Yongshen Zheng, Puxin Cheng, Xiaodong Qian, Junjie Guan, Rongchao Shi, Mingyang Xin, Jialiang Xu, Xian-He Bu
Summary: In this study, pyridine groups with different N-substitution positions were incorporated into a fluorenone skeleton to obtain target compounds 3-DPyFO and 4-DPyFO with modulated intermolecular interactions and self-assembly behaviors. The 3-DPyFO-alpha compound exhibited thermal-induced phase transition and unusual multi-response fluorescence, while 4-DPyFO-alpha showed highly efficient second- and third-order nonlinear optical effects, along with a resonance enhancement of second harmonic generation and two-photon excited fluorescence. This study on NLO properties of pyridine functionalized fluorenone derivatives will enrich the fluorenone based NLO materials for photonic device applications.
MATERIALS CHEMISTRY FRONTIERS
(2023)
Article
Energy & Fuels
Hong Cui, Yunhao Ning, Yuxuan Yang, Dingqian He, Wentao Chen, Yuqiong Huang, Peng Zhao, Yaqing Feng, Bao Zhang
Summary: Aromatic ammonium salts have been considered as promising passivators in perovskite solar cell (PSC) fabrications, but the complicated passivation procedure and formation of undesirable low-dimensional (LD) perovskite layers hinder further development. In this study, two carefully engineered passivators based on the unique benzothiophene moiety are developed. It is shown that defects and nonradiative recombination reactions can be effectively suppressed without the formation of LD perovskite by simple posttreatments. The champion efficiency of the BTMA-2-treated device increases to 23.10% from approximately 20% with improved stabilities and negligible hysteresis.
Article
Energy & Fuels
Sihan Li, Wentao Chen, Yuxuan Yang, Peng Zhao, Hong Cui, Yuqiong Huang, Dingqian He, Yunhao Ning, Yaqing Feng, Bao Zhang
Summary: Hole transport materials (HTMs) are crucial for transporting holes and regulating perovskite crystallization in inverted perovskite solar cells (PSCs). Tailoring and crosslinking strategies have been developed to enhance the solvent resistance of HTMs, but their influence on the resulting hole transport layers (HTLs) and device performance has not been systematically evaluated. In this study, AFL-COOH and AFL-ENE HTMs with tailored and crosslinked groups were designed. It was found that the crosslinked AFL-ENE (AFL-ENE-CL) HTL exhibited the best solvent resistance and resulted in a high-quality HTL with low trap density, good surface contact, and efficient hole extraction. The PSCs based on AFL-ENE-CL achieved a power conversion efficiency of 20.8%, demonstrating high reproducibility and stability.
Article
Chemistry, Multidisciplinary
Peng Zhao, Dingqian He, Sihan Li, Hong Cui, Yuxuan Yang, Wentao Chen, AL-Shuaa Salah, Yaqing Feng, Bao Zhang
Summary: Hole-transporting materials (HTMs) are crucial for the performance of inverted perovskite solar cells (PSCs). This study presents a unique cost-effective small molecule-type HTM with a chloro-assisted chelating moiety (TPA-CAA). TPA-CAA shows excellent affinity to the perovskite precursor solution, resulting in smooth and uniform perovskite films. The chelate structure of TPA-CAA efficiently tunes the perovskite crystallization, passivates defects, and enhances hole transporting at the perovskite/HTL interface. The TPA-CAA-based inverted PSC achieves a champion power conversion efficiency (PCE) of 21.56% with improved stability.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Yuqiong Huang, Kuo Su, Wentao Chen, Yaming Zhang, Bao Zhang, Jian Song
Summary: While perovskite solar cells (PSCs) have seen a rapid improvement in efficiency, the environmental toxicity of lead limits the practical applications of lead-based PSCs. This study focuses on the hole transport material (HTM) for tin-lead PSCs. A new triarylamine benzodithiazole derivative (TPA-BBT) is synthesized and used as an HTM, resulting in PSCs with improved film quality and reduced charge transport losses. The TPA-BBT-based devices achieve a power conversion efficiency of 15.85% and better stability compared to control devices.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Yongshen Zheng, Junjie Guan, Puxin Cheng, Wenqing Han, Jialiang Xu, Xian-He Bu
Summary: Click chemistry is widely used to construct various functional materials. In this study, second-order NLO crystals were fabricated using a compound synthesized via click chemistry. The crystals exhibited promising NLO performances, high thermal stability, and wide optical transparency. This work paves the way for the application of click chemistry in the construction of organic NLO crystals.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Chemistry, Multidisciplinary
Xiao Han, Puxin Cheng, Wenqing Han, Rongchao Shi, Junjie Guan, Geng Li, Jialiang Xu
Summary: In this study, 0D chiral zinc halides with high efficiency second-order nonlinear optical responses were successfully fabricated. The incorporation of Sb3+ into the chiral zinc halide matrix effectively triggers circularly polarized luminescence with a balance between quantum yield and luminescence dissymmetry factor.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Puxin Cheng, Geng Li, Yinchang Zhao, Xiangfei Meng, Shuming Zeng, Jialiang Xu
Summary: In this study, a balanced thermoelectric performance of a new monolayer semiconductor AuClO2 has been theoretically predicted. It exhibits both thermodynamic and mechanical stability, with low thermal conductivity and high Seebeck coefficient. This provides a promising material for thermal insulation and thermoelectric refrigeration applications, and offers theoretical guidelines for the design of high-performance 2D thermoelectric materials.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Green & Sustainable Science & Technology
Salah AL-Shuaa, Wentao Chen, Keith Gregory Brooks, Bao Zhang, Yaqing Feng, Mohammad Khaja Nazeeruddin, Yi Zhang
Summary: In this study, a thin CeO2 passivation layer is inserted between SnO2 and PVK to prevent interface degradation and improve the efficiency of perovskite solar cells. The power conversion efficiency (PCE) is increased from 20.7% to 22.71%. After 1700 hours of storage, the reinforced SnO2-CeO2 PSC devices exhibit better stability compared to the pristine SnO2 PSC devices.
ADVANCED ENERGY AND SUSTAINABILITY RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Wenbo Deng, Meng Jia, Quan Shi, Yunhao Xu, Yaqing Feng, Yanming Zhao, Min Gong, Bao Zhang
Summary: Nanoscale metal-organic polymers (MOPs) based on corrole have shown great potential in photodynamic therapy (PDT) and photothermal therapy (PTT). In this study, a unique corrole-based MOP (PFCC-Hf) was successfully synthesized using a simple solvothermal method. The PFCC-Hf demonstrated superior synergistic PDT and PTT efficacies compared to traditional PDT treatment, with a high apoptosis rate of A375 cells in vitro. This work highlights the potential of corrole-based MOPs for efficient phototherapy treatments.
MATERIALS CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Multidisciplinary
Xiangyu Li, Minghui Chen, Quan Shi, Ji Xiong, Ting Li, Yu Jiang, Yaqing Feng, Bao Zhang
Summary: This study investigated the effects of different pi-bridges on the performance of photocatalytic water splitting by synthesizing three types of CTFs. The results showed that BenP-CTF with the pyridine unit as the pi-bridge exhibited superior charge migration ability and higher photocatalytic hydrogen evolution rates compared to the other CTFs.
NEW JOURNAL OF CHEMISTRY
(2023)
