Article
Chemistry, Physical
Wei Wang, Yiling Xie, Fangfang He, Yuan Wang, Weinan Xue, Yan Li
Summary: In quantum dot-based solar cells (QDSCs), the balance between QD loading and TiO2 film thickness significantly affects the performance. A relatively thin photoanode prepared by a cationic surfactant-assisted multiple deposition procedure achieved a high QD loading comparable to that of the commonly used thick photoanode. Under optimized conditions, the Zn-Cu-In-Se and Zn-Cu-In-S based QDSCs showed a comparable power conversion efficiency (PCE) to those with significantly thicker photoanodes (over 25.0 μm).
GREEN ENERGY & ENVIRONMENT
(2023)
Review
Chemistry, Multidisciplinary
Weishu Guo, Jun Chen, Teng Ma, Ziyi Chen, Mulin Li, Haibo Zeng, Jian Lu
Summary: This paper reviews the progress of direct photolithography research focused on QD-polymer materials in the new display technology based on quantum dots. It also presents recent advances in monochromatic/multicolor light patterning. Additionally, the article proposes a de-photomasking scheme for direct lithography. This paper provides guidance for advancing QD-polymer for high-quality patterning and display applications.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Review
Chemistry, Physical
Akash S. Rasal, Sudesh Yadav, Anil A. Kashale, Ali Altaee, Jia-Yaw Chang
Summary: This review discusses the factors influencing the performance stability of QDSSCs and provides insights into the mechanisms causing degraded performances. It also presents cutting-edge strategies for improving the overall performance stability of QDSSCs.
Article
Engineering, Electrical & Electronic
Meng Wang, Zhuoyin Peng, Dong Huang, Zuoqiu Ning, Jianlin Chen, Wei Li, Jian Chen
Summary: In this study, a second electrochemical deposition process was used to increase the quantum dot loading amount of TiO2 nanodendrite based quantum dot sensitized solar cells, resulting in improved optical absorption property and stable charge separation property. The current density of the solar cells was significantly enhanced with the increasing quantum dot loading amount. Moreover, the photovoltaic conversion efficiency of the CuInS2 quantum dot sensitized TiO2 nanodendrite solar cells was increased from 3.91% to 4.58% after a 30-minute second electrochemical deposition process.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2022)
Article
Chemistry, Multidisciplinary
Taewoo Ko, Samir Kumar, Sanghoon Shin, Dongmin Seo, Sungkyu Seo
Summary: In this study, a novel approach to pattern quantum dot (QD) nanopatterns by electron beam lithography was presented. Colloidal QDs were used without additional modifications, and reliable dot and line patterns with dimensions as small as 140 nm were successfully generated. Additionally, it was shown that using a SiO2 spacer layer on a Au substrate can significantly enhance the fluorescence intensity of QDs.
Article
Energy & Fuels
T. Archana, S. Sreelekshmi, G. Subashini, A. Nirmala Grace, M. Arivanandhan, R. Jayavel
Summary: The study investigated the use of graphene quantum dots as a passivating layer for cadmium sulfide quantum dot-sensitized solar cells, which significantly enhanced the photoconversion efficiency of the QDSSCs.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Chemistry, Physical
S. Liu, R. Fan, Y. Zhao, M. Yu, L. Li, Q. Li, B. Liang, W. Zhang
Summary: In this study, a relatively less toxic CISSe quantum dot was prepared by an organic high-temperature hot injection method for use in QD-sensitized solar cells. Through Sn doping and ZnS passivation, the electron collection efficiency was improved and charge recombination was inhibited, resulting in a power conversion efficiency of 6.7% for the QDSSC.
MATERIALS TODAY ENERGY
(2021)
Article
Chemistry, Analytical
Zhangcheng Xia, Cong Zheng, Jingjie Hu, Qiming Yuan, Cheng Zhang, Jian Zhang, Lifang He, Hongliang Gao, Ling Jin, Xiangfeng Chu, Fanli Meng
Summary: In this study, SnO2 quantum dots (QDs) were used to dope and sensitize LaFeO3, improving its sensing properties towards formic acid (HCOOH) gas. Porous LaFeO3 was achieved by doping SnO2 QDs, enhancing the diffusion of gas molecules. The sensitivity of LaFeO3 to HCOOH was significantly improved by SnO2 QDs doping, and a sensor based on LaFeO3 doped with 2.5 wt% SnO2 QDs exhibited excellent sensing performance with a high response value of 31.5-100 ppm HCOOH and a low detection limit of 1 ppm at 210 degrees C. The formation of heterojunctions between SnO2 QDs and LaFeO3, as well as the small size of SnO2 QDs, contributed to the enhanced sensing properties. This work highlights the advantages of QDs sensitization in semiconductor gas sensing.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Engineering, Electrical & Electronic
Han Wang, Weicheng Ou, Zhiliang Wu, Nian Cai, Maolin Liu, Jie Liang, Xin Chen, Chunyang Pan, Peixuan Wu
Summary: This article introduces a method of using additive manufacturing and perovskite quantum dots to fabricate a novel linear encoder. By creating a new printing ink and coding pattern, as well as establishing a new measurement system and image processing method, high-precision displacement measurement is achieved.
IEEE SENSORS JOURNAL
(2022)
Article
Chemistry, Physical
C. Rosiles-Perez, S. Sidhik, L. Ixtilico-Cortes, F. Robles-Montes, T. Lopez-Luke, A. E. Jimenez-Gonzalez
Summary: By using Bi2S3 quantum dots as the sensitizer material, a high short-circuit current density was achieved in the QDSSC. The addition of 1,2,3-propanetriol as a complexing agent significantly increased the density sensitization of Bi2S3 QDs, leading to an improvement in J(sc).
MATERIALS TODAY ENERGY
(2021)
Review
Chemistry, Multidisciplinary
Muhammad Abdul Basit, Muhammad Aanish Ali, Zunair Masroor, Zeeshan Tariq, Jin Ho Bang
Summary: Quantum dot-sensitized solar cells (QDSSCs) have unique characteristics that make them a promising solution to the energy-economy-environment dilemma. Researchers have been strategically addressing the challenges faced by QDSSCs, such as back transfer of electrons, recombination, and photocorrosion, to improve their performance. Interfacial layers (ILs) have proved beneficial in addressing these challenges, providing surface passivation, seeding quantum dots, and controlling back electron transfer. This review discusses the multifunctional roles of ILs in QDSSCs, characterization techniques, and future prospects.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
Article
Energy & Fuels
Roopakala Kottayi, Vignesh Murugadoss, Pratheep Panneerselvam, Ramadasse Sittaramane, Subramania Angaiah
Summary: Cu2AgInS2Se2 alloyed quantum dots were synthesized using a hot injection method, with their structure, optical properties, and composition confirmed through various analyses. The sensitized solar cell using these quantum dots exhibited higher photoconversion efficiency compared to other quantum dots, showcasing their potential for photovoltaic applications.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Chemistry, Physical
Xiu Liu, Jianjun Li, Pingping Zhang, Weitong Lu, Gaoling Yang, Haizheng Zhong, Yuejin Zhao
Summary: This study reports the fabrication of PQDs microarrays using inkjet printing and in situ fabrication methods. The resulting microarrays exhibit 3D morphology and strong photoluminescence, making them suitable for large-area multicolor patterned pixel microarrays with wide color gamut.
Article
Materials Science, Ceramics
Z. Sherafati Tabarestani, M. Samadpour
Summary: Three-dimensional silica mesh structures are prepared to enhance the performance and stability of quantum dot sensitized solar cells. The improved light scattering properties of the meshed structures lead to increased current density and efficiency of the cells. The silica mesh reduces recombination rate and improves the efficiency of the cells. Moreover, it also reduces the deleterious effect of the electrolyte on the semiconductor layers, resulting in improved stability of the cells.
CERAMICS INTERNATIONAL
(2022)
Review
Chemistry, Applied
J. H. Markna, Prashant K. Rathod
Summary: This review article provides a comprehensive overview of the efficiency of quantum dot sensitized solar cells (QDSCs) based on dye-synthesized solar cells and nanotechnology, and discusses their status under the influence of photoanode and quantum dot sensitizers.
Article
Engineering, Environmental
Zechao Yang, Guizhi Zhang, Jianxin Zhang, Zhenxiao Pan, Siyuan Yang, Boping Liu, Huashang Rao, Xinhua Zhong
Summary: This study utilizes a synergistic passivation strategy with alkali metal and halogenoid ions in the NaSCN additive to enhance the quality and performance of CsPbI2Br films, effectively reducing nonradiative recombination loss and achieving a champion PCE of 14.63% in all-inorganic CsPbI2Br Perovskite solar cells.
CHEMICAL ENGINEERING JOURNAL
(2022)
Review
Chemistry, Multidisciplinary
Wenran Wang, Meng Zhang, Zhenxiao Pan, Gill M. Biesold, Shuang Liang, Huashang Rao, Zhiqun Lin, Xinhua Zhong
Summary: Colloidal nanocrystals are important building blocks for assembling functional thin films and devices, with IL-capped colloidal NCs showing promising applications. Solution-phase ligand exchange for preparing IL-capped NCs is critical for improving device performance.
Article
Engineering, Environmental
Lingcong Li, Ruike Zhang, Zhujie Wu, Yao Wang, Jin Hong, Huashang Rao, Zhenxiao Pan, Xinhua Zhong
Summary: The preparation of high-efficiency perovskite solar cells in ambient air environment is challenging. In this study, a simple component engineering strategy is proposed to regulate the crystallization process of perovskite film, leading to improved crystallinity, reduced defect state density, and suppressed non-radiative recombination processes. The efficiency of the carbon-based perovskite solar cells reached a record high.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Jianxin Zhang, Guizhi Zhang, Yongyu Liao, Zhenxiao Pan, Huashang Rao, Xinhua Zhong
Summary: In this study, a novel hybrid hole conductor, Poly-3-hexylthiophene - CsPbI3 quantum dots (P-QD), was used to improve hole extraction in CsPbI2Br C-PSCs. The P-QD hybrid hole conductor effectively improved hole extraction by aligning perovskite/carbon energy-level and extending the optical response range of CsPbI2Br solar cells, resulting in an increased power conversion efficiency from 13.49% to 15.04%. This strategy provides a new approach for the construction of hole transport layers in carbon-based perovskite solar cells.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Cuiting Kang, Shuaihang Xu, Huashang Rao, Zhenxiao Pan, Xinhua Zhong
Summary: A strategy for constructing an all-inorganic 2D/3D CsPb2I4Br/CsPbI2Br bulk heterojunction (BHJ) by in situ reaction of excess PbI2 in a precursor solution with CsPbI2Br during annealing is proposed. The formed 2D/3D BHJ effectively passivates defects in 3D CsPbI2Br and reduces nonradiative recombination loss in carbon electrode-based perovskite solar cells (C-PSCs). The optimized C-PSCs achieve an open-circuit voltage of 1.32 V and an efficiency of 15.25%, which are the best results for CsPbI2Br-based C-PSCs.
ACS ENERGY LETTERS
(2023)
Article
Chemistry, Physical
Zhengyan Zhang, Han Song, Wenran Wang, Huashang Rao, Yueping Fang, Zhenxiao Pan, Xinhua Zhong
Summary: A ligand design strategy using mercaptopropionic acid (MPA) and inorganic ligands (ILs) as dual ligands on the surface of quantum dots (QDs) is developed to enhance the loading amount and optoelectronic performance of QD sensitizers. The ILs not only facilitate QD loading but also reduce interdot repulsion and form dense QD layers, while the pseudohalide SCN- has a passivation effect on QD surfaces and suppresses defect trap states. As a result, QDSCs based on dual SCN/MPA ligands achieve a certified efficiency of 16.10%, a new record for liquid junction QD solar cells.
ACS ENERGY LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Yongyu Liao, Jianxin Zhang, Wenran Wang, Zechao Yang, Rong Huang, Jiage Lin, Lei Che, Guoying Yang, Zhenxiao Pan, Huashang Rao, Xinhua Zhong
Summary: Surface molecular passivation is an effective strategy to reduce defect-assisted recombination and nonradiative recombination loss in perovskite solar cells (PSCs). However, most passivating molecules bind weakly to the perovskite surface, resulting in weak passivation effects. In carbon-based perovskite solar cells (C-PSCs), the molecular passivation effect is more susceptible to disturbance during the preparation of carbon electrodes. In this study, a bidentate ligand 2,2'-Bipyridine (2Bipy) is used to passivate surface defects of CsPbI2.6Br0.4 perovskite films. The results show that 2Bipy exhibits a stronger chelation effect and achieves better passivation performance compared to monodentate pyridine (Py). As a result, the efficiency of C-PSCs is significantly improved, setting a new record efficiency for hole transport material-free inorganic C-PSCs.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Ruike Zhang, Lingcong Li, Wenran Wang, Zhujie Wu, Yao Wang, Jin Hong, Huashang Rao, Zhenxiao Pan, Xinhua Zhong
Summary: Researchers reported a new method for fabricating wide-bandgap perovskite solar cells without acid treatment. Formamidine/cesium (FA/Cs) as an additive can effectively control the crystallization process of perovskite films, improving the crystallinity and efficiency of the solar cells.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Jianxin Zhang, Guizhi Zhang, Pei-Yang Su, Rong Huang, Jiage Lin, Wenran Wang, Zhenxiao Pan, Huashang Rao, Xinhua Zhong
Summary: Defects in perovskite can be effectively passivated by choline halide (ChX), which binds with charged point defects. We found that ChI can react with CsPbI3 to form a novel crystal phase of one-dimensional (1D) ChPbI(3), which improves the photoluminescence lifetime and stability of the CsPbI3 film. The CsPbI3-based carbon-based solar cells achieved high efficiencies and set new records in hole transport material-free inorganic solar cells.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Yao Wang, Lingcong Li, Zhujie Wu, Ruike Zhang, Jin Hong, Jianxin Zhang, Huashang Rao, Zhenxiao Pan, Xinhua Zhong
Summary: A self-driven prenucleation strategy using formamide as the co-solvent is proposed to achieve fast nucleation and improve the crystalline quality of perovskite film.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Zhujie Wu, Yao Wang, Lingcong Li, Ruike Zhang, Jin Hong, Rong Huang, Lei Che, Guoying Yang, Huashang Rao, Zhenxiao Pan, Xinhua Zhong
Summary: In this study, a mild continuous pH control strategy using urea as a weak organic base was proposed to regulate the hydrolysis process of TiCl4 post-treatment. This strategy facilitated the formation of an anatase-dominated TiO2 surface layer on the mesoporous TiO2, leading to reduced defect density and improved charge extraction efficiency in perovskite solar cells (PSCs). The fabricated carbon electrode-based PSCs (C-PSCs) achieved an efficiency of 18.08%, the highest among C-PSCs based on wide-bandgap perovskites.
Article
Materials Science, Multidisciplinary
Guizhi Zhang, Jianxin Zhang, Zhenxiao Pan, Huashang Rao, Xinhua Zhong
Summary: Researchers synthesized a carbon nanotube/poly(3-hexylthiophene) (CNT/P3HT) composite as a hole transport material to construct state-of-the-art carbon-based perovskite solar cells (C-PSCs). The CNT in the composite provides a high-speed channel for hole transmission, lowering charge transmission impedance and improving hole extraction efficiency. Using this composite, CsPbI2Br C-PSCs achieved an increase in open-circuit voltage from 1.233 to 1.355 V and power conversion efficiency from 13.29% to 15.56%, setting a new record for all-inorganic perovskite C-PSCs.
SCIENCE CHINA-MATERIALS
(2023)
Article
Biotechnology & Applied Microbiology
Qinghong Guo, Xuefang Guo, Nuo Ji, Bang Shen, Xinhua Zhong, Lihua Xiao, Yaoyu Feng, Ningbo Xia
Summary: Toxoplasma gondii is a widespread pathogen that infects various warm-blooded animals, including humans, leading to significant socioeconomic and healthcare burdens. Despite the lack of an ideal toxoplasmosis vaccine, targeting key pathways in the parasite's metabolism shows promise for new antiparasitic strategies.
MICROBIAL BIOTECHNOLOGY
(2023)
Article
Chemistry, Inorganic & Nuclear
Li Jian-Hao, Song Han, Zhang Zheng-Yan, Pan Zhen-Xiao, Zhong Xin-Hua
Summary: The synergistic photoanode coating strategy was applied to inhibit charge recombination processes at the photoanode/electrolyte interface and improve the photovoltaic performance of ZCISe QDSC.
CHINESE JOURNAL OF INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Physical
Qi Cheng, Zhenxiao Pan, Huashang Rao, Xinhua Zhong
Summary: In this study, a lightweight 3DNG-Co4N/S aerogel material was designed and synthesized, which showed high sulfur loading capacity and high energy density for lithium-sulfur batteries. The experimental results demonstrated that under low electrolyte sulfur ratio conditions, the cathode material achieved high areal capacity and volumetric energy density, representing an important breakthrough in the field of lithium-sulfur batteries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
