Article
Energy & Fuels
Yuanbo Yang, Shuo Wang, Simiao Li, Tiantian Li, Peng Chen, Qian Zhao, Guoran Li
Summary: For the first time, a perovskite quantum dot interlayer is used to solve the interface issue in carbon-based hole transport material-free perovskite solar cells, which acts as a morphology changer, defect passivator, and photogenerated hole extractor. Compared with the pristine perovskite film, the PQD-modified perovskite absorber shows increased contact area and high compatibility with the carbon electrode, leading to an improvement in device efficiency from 16.71% to 17.93%.
Review
Chemistry, Physical
Ming Chen, Jiuxing Wang, Feifei Yin, Zhonglin Du, Laurence A. Belfiore, Jianguo Tang
Summary: The paper reviews recent advances in strategically integrating various QDs and their associated performance enhancement of OSCs and PSCs, emphasizing the device configuration, integration location, and physical mechanism of different QDs types, and briefly outlining the basic structures and operation principles of OSCs and PSCs.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Chemistry, Physical
Yueming Wang, Samah Akel, Benjamin Klingebiel, Thomas Kirchartz
Summary: Achieving high efficiencies in halide perovskite solar cells with thicknesses >1 μm is crucial for developing perovskite-Si tandem cells based on small pyramidal structures. Improving the quality of the perovskite layer and optimizing the properties of the charge-transport layers are essential for reducing charge-collection losses. Using bilayers of hole-transport layers can enhance charge collection and fill factors in thick inverted perovskite solar cells.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
E. Erdenebileg, N. Tiwari, F. U. Kosasih, H. A. Dewi, L. Jia, N. Mathews, S. Mhaisalkar, A. Bruno
Summary: Metal oxides, such as non-stoichiometric nickel oxide (NiOx), have been widely used in thin film solar cells for their suitable energy band levels, high charge carrier mobilities, and excellent stability. In this study, we demonstrate the fabrication of co-evaporated perovskite solar cells (PSCs) with sputtered NiOx as the hole transport layer. We investigate the impact of sputtering conditions on the physical properties of NiOx and achieve highly efficient PSCs using optimized conditions.
MATERIALS TODAY CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Qian Lai, Rongshan Zhuang, Kun Zhang, Tai Wu, Lin Xie, Rongjun Zhao, Lei Yang, Yang Wang, Yong Hua
Summary: In this study, a liquid crystal organic small molecule (LQ) was added into the hole transport layer (HTL) of perovskite solar cells (PSCs), leading to improved efficiency and stability. The introduction of LQ enhanced charge carrier extraction and transportation, and effectively suppressed charge carrier recombination. Additionally, the chemical coordination between LQ and Li-TFSI restrained Li+ ion migration, resulting in enhanced device stability.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Liang Wang, Shuzhang Yang, Qianji Han, Fengyang Yu, Hong Zhang, Xiaoyong Cai, Chu Zhang, Liguo Gao, Tingli Ma
Summary: This study successfully prepared perovskite solar cells with an efficiency of 12.01% using the simplest device structure, demonstrating excellent long-term stability. This provides a new approach to reduce production costs and simplify production of PSCs.
Article
Engineering, Environmental
Xiaoyan Zhao, Wenxiao Zhang, Xiuxiu Feng, Xuemin Guo, Chunyan Lu, Xiaodong Li, Junfeng Fang
Summary: This study proposes a photoconductive NiOx-Pc hole transport layer in perovskite solar cells (PSCs) by combining with phthalocyanine (Pc) to improve the conductivity of NiOx film. The experimental results show that the conductivity of NiOx-Pc film significantly increases, leading to improved efficiency and stability of PSCs.
CHEMICAL ENGINEERING JOURNAL
(2022)
Review
Chemistry, Physical
Ying Shen, Kaimo Deng, Liang Li
Summary: Perovskite solar cells have achieved high power conversion efficiency, but long-term stability remains a challenge. The focus is on improving the stability of the hole transport layer Spiro-OMeTAD to achieve efficient and long-lasting perovskite solar cells.
Article
Nanoscience & Nanotechnology
Zhen Yu, Weiwei Li, Nian Cheng, Zhen Liu, Bao Lei, Zhenyu Xiao, Wei Zi, Zhiqiang Zhao, Youchao Tu
Summary: In this study, the potential of Cu2SnS3 nanocrystals as hole-transport layers in perovskite solar cells is evaluated for the first time. The results show that the Cu2SnS3 hole-transport layer can improve the power conversion efficiency of the cells and suppress charge carrier recombination.
ACS APPLIED NANO MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Jian Yao, Jian Kong, Wenying Shi, Chao Lu
Summary: This study proposes a solvothermal treatment method for old materials, making originally insoluble organic substances soluble and improving the performance of high-efficiency perovskite solar cells. The solvothermal-treated organic substances not only retain their original function, but also exhibit higher stability during long-term operation.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Review
Chemistry, Multidisciplinary
Wanchun Xiang, Shengzhong (Frank) Liu, Wolfgang Tress
Summary: Metal halide inorganic perovskite materials are of interest for photovoltaic applications due to their superior thermal stability. Solar cells based on inorganic perovskites have achieved a PCE over 20%, with more room for improvement compared to organic-inorganic hybrid perovskite solar cells. Interfaces play a crucial role in limiting the photovoltage and charge extraction efficiency in inorganic perovskite solar cells.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Engineering, Environmental
Qu Yang, Xiu Gong, Xiaosi Qi, Xuncheng Liu, Cheng Liu, Quanfeng Zhou, Qiang Sun, Yan Shen, Mingkui Wang
Summary: So far, SpiroOMeTAD has been extensively used in high-performance perovskite solar cells (PSCs) as the most studied hole transport layer (HTL) material. However, its long-term stability is limited by sensitivity to moisture and ion diffusion. In this study, we introduce a highly hydrophobic tetrathiophene polymer (PAQM-DPP) as a chemically tailored modifier for SpiroOMeTAD HTL, which forms a robust bilayer structure and significantly improves stability and tolerance to moisture. Under constant illumination conditions in a N2 atmosphere, the PSCs with the polymer/SpiroOMeTAD bilayer maintained over 92% PCE for 500 hours and exhibited higher tolerance to relative humidity compared to the SpiroOMeTAD HTL counterpart.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Kritsada Hongsith, Natthakrit Subtim, Arucha Aryaruknukul, Rangsan Panyathip, Wakul Bumrungsan, Sukrit Sucharitakul, Surachet Phadungdhitidhada, Supab Choopun
Summary: This study investigates the use of nickel compound quantum dots prepared via electrochemical process as hole transporting layer (HTL) in perovskite solar cells (PSCs). The NiO films prepared from these quantum dots show improved power conversion efficiency and higher stability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Polymer Science
Silvia Collavini, Andrea Cabrera-Espinoza, Juan Luis Delgado
Summary: Organic polymers as additives play a crucial role in perovskite solar cells, improving device performance and stability. Understanding the functionality and chemical properties of polymers in solar cells is important for the future design of polymeric materials suitable for PSCs.
Article
Chemistry, Multidisciplinary
Sheng Jiang, Shaobing Xiong, Wei Dong, Danqin Li, Yuting Yan, Menghui Jia, Yannan Dai, Qingbiao Zhao, Kai Jiang, Xianjie Liu, Liming Ding, Mats Fahlman, Zhenrong Sun, Qinye Bao
Summary: In this study, solution-processed chromium multioxide was used as the charge transport layer in perovskite solar cells, resulting in increased efficiency and stability by reducing defects and adjusting the energy band gap.
Article
Chemistry, Physical
Faying Li, Min Zhang, Daniele Benetti, Li Shi, Lucas Besteiro, Hui Zhang, Jiabin Liu, Gurpreet Singh Selopal, Shuhui Sun, Zhiming Wang, Qin Wei, Federico Rosei
Summary: This study developed environmentally friendly QDs using a new method and applied them to PEC hydrogen production, showing significant performance improvements and potential broad applications in optoelectronics.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Multidisciplinary
Efat Jokar, Ping-Huan Hou, Sumit S. Bhosale, He-Shiang Chuang, Sudhakar Narra, Eric Wei-Guang Diau
Summary: Introducing the new organic cation AZ into the crystal structure of tin-based perovskites forms mixed-cation perovskites, which exhibit improved stability and performance for solar cells. By using a specific antisolvent, smooth and uniform perovskite films can be fabricated to optimize device efficiency, showing promising potential for commercialization.
Review
Chemistry, Multidisciplinary
Il Jeon, Kyusun Kim, Efat Jokar, Minjoon Park, Hyung-Woo Lee, Eric Wei-Guang Diau
Summary: This report summarizes the development of lead-free tin-based perovskite solar cells, addressing the challenges and solutions in technological advancements, and exploring their potential applications in energy storage systems.
Article
Chemistry, Physical
Kanghong Wang, Jiabin Liu, Yi Tao, Daniele Benetti, Federico Rosei, Xuhui Sun
Summary: This study systematically investigated the temperature effect on the PEC performance of quantum dot sensitized metal oxides, revealing that at low temperatures, electron transfer is slowed down leading to decreased performance, while at high temperatures, electron transfer rate increases resulting in more efficient carrier separation and transfer.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Physical
Sudhakar Narra, Chia-Yi Lin, Ashank Seetharaman, Efat Jokar, Eric Wei-Guang Diau
Summary: This study investigated the dynamics of exciton and free-carrier relaxation in low-dimensional tin iodide perovskites using femtosecond transient absorption spectra. The results show that samples of different dimensions exhibit different exciton and free-carrier characteristics, with variations in carrier relaxation dynamics.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Li Shi, Daniele Benetti, Faying Li, Qin Wei, Federico Rosei
Summary: This study explores a method to synthesize carbon/NiO nanostructures and improves the performance of the photocathode by sensitization with core-shell quantum dots. The hierarchical hollow spheres exhibit high surface area and excellent conductivity, leading to enhanced light scattering and fast charge transfer.
Article
Energy & Fuels
Thi-Thong Ho, Efat Jokar, Shaham Quadir, Ruei-San Chen, Fang-Chen Liu, Cheng-Ying Chen, Kuei-Hsien Chen, Li-Chyong Chen
Summary: Tin monosulfide (SnS) is a promising light-harvesting material for solar cells due to its potential for large-scale production, cost-effectiveness, eco-friendly source materials, and long-term stability. By controlling the crystal growth orientation and substrate tilting angle, the transfer of charge carriers and power conversion efficiency (PCE) can be enhanced.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2022)
Article
Chemistry, Physical
Kanghong Wang, Yi Tao, Zikun Tang, Daniele Benetti, Francois Vidal, Haiguang Zhao, Federico Rosei, Xuhui Sun
Summary: This study presents a novel core/multiple-shell architecture based on CdSe/CdS/ZnS QDs to enhance the performance of photoelectrochemical (PEC) hydrogen generation devices. The optimized shell composition with gradient layers reduces surface traps and defects of QDs, while suppressing exciton recombination. The PEC device exhibited outstanding photocurrent density and excellent stability under one sun illumination, showing potential for commercial development.
Article
Nanoscience & Nanotechnology
Faying Li, Daniele Benetti, Min Zhang, Li Shi, Jinhui Feng, Qin Wei, Federico Rosei
Summary: Charge separation, transmission, and light absorption properties are critical to the performance of photoelectrochemical devices, and these properties can be controlled by using heterostructured materials. This study designs a tunable zero-dimensional/two-dimensional heterostructure based on quantum dots and 2D nanosheets. The optimized heterostructure exhibits significantly higher activity in solar hydrogen production compared to other materials, due to enhanced light absorption, efficient charge separation, and transmission.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Xiaofeng Pan, Qinhua Wang, Daniele Benetti, Yonghao Ni, Federico Rosei
Summary: This work presents the design and fabrication of a mechanical-electric conversion and self-powered sensing platform based on polyelectrolyte hydrogels. The compression deformation of the hydrogel leads to a localized increase in H+ concentration, which induces a directional H+ diffusion. The difference in mobility between ionized H+ and fixed PAA chain allows for the conversion of mechanical energy into electricity.
Article
Green & Sustainable Science & Technology
Lin Liang, Lei Jin, Gurpreet Singh Selopal, Federico Rosei
Summary: As the largest energy importer and consumer with the second-largest economy, China heavily relies on fossil fuels, making it a major player in the global energy trade. To achieve energy independence and address environmental concerns, China is investing in and deploying renewable energy technologies on a large scale. Through its energy diplomacy strategy, China aims to position itself as a global leader in the energy sector and promote sustainable development. This strategy has the potential to have worldwide implications and contribute to achieving several Sustainable Development Goals.
Article
Chemistry, Multidisciplinary
Li Shi, Daniele Benetti, Qin Wei, Federico Rosei
Summary: A high-performance p-n heterojunction composite metal oxide photocatalyst was synthesized via a facile method, and its photoelectrochemical water splitting performance was significantly enhanced by the addition of graphene nanoribbons. The optimized PEC device based on this composite showed a four-fold increase in maximum current density compared to the reference device with only In2O3 photoanodes.
Article
Engineering, Chemical
Elnaz Afsharipour, Kirtiman Deo Malviya, Mohammadreza Montazeri, Ebrahim Mortazy, Ramin Soltanzadeh, Alireza Hassani, Federico Rosei, Mohamed Chaker
Summary: We designed, fabricated, and tested a humidity sensor based on an optical fiber-based evanescent wave probe. The fiber was bent into a U-shape and de-cladded, then coated with either Au or ZnO nanoparticles. Humidity is detected through the interaction in the surface plasmon resonance of the coated nanoparticles. The sensor showed high sensitivity and linearity over a wide range of humidity levels.
Article
Chemistry, Multidisciplinary
Aurel Thibaut Nkeumaleu, Daniele Benetti, Imane Haddadou, Michael Di Mare, Claudiane M. Ouellet-Plamondon, Federico Rosei
Summary: This article presents a proof-of-concept for recycling microbrewery waste to synthesize carbon dots as a carbon source. A simple method has been developed to synthesize water-soluble carbon dots from brewery spent grain using microwave irradiation. The properties of the carbon dots were characterized and the effects of reaction conditions were studied. The carbon dots exhibited good fluorescence and functional groups, making them suitable for applications in water treatment and food safety detection.
Article
Engineering, Environmental
Tingzhou Yang, Sai Wang, Daniele Benetti, Kanghong Wang, Yawen Sun, Haoqing Ji, Tao Qian, Chenglin Yan, Federico Rosei
Summary: Water pollution exacerbates freshwater shortage, and solar-to-steam conversion systems offer a promising eco-friendly solution. The polymer wastewater collector with DPAC has shown efficient sewage purification capabilities under solar irradiation.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Sirinya Ukasi, Paritta Jutapukti, Chiranicha Ninthub, Nattapong Pinpru, Phakkhananan Pakawanit, Wanwilai Vittayakorn, Satana Pongampai, Naratip Vittayakorn, Thitirat Charoonsuk
Summary: This study explores the enhancement of electrical output of flexible hybrid piezoelectric-triboelectric nanogenerators by incorporating gamma-glycine into fully organic composites. The research demonstrates the importance of optimized concentrations of gamma-glycine and chitosan in achieving superior performance. The study identifies the critical content of gamma-glycine that leads to the highest output signal, and provides theoretical explanations for this observation.
Article
Chemistry, Physical
Yoonsang Ra, Yu-seop Kim, Seonmo Yang, Namgyu Kang, Gyuwon Oh, Chungyeon Cho, Sangmin Lee, Dongwhi Choi
Summary: In this study, a portable energy harvester (STEP) was proposed to drive various functional LEDs using biomechanical energy. The roles and functionalities of a triboelectric nanogenerator (TENG) and electromagnetic generator (EMG) in the hybrid energy harvester were experimentally demonstrated, and the necessity of hybridization for LED-involved devices was described. The STEP showed promising potential as an effective energy supply strategy for various functional LEDs in related industries.
Article
Chemistry, Physical
Dae Sol Kong, Kyung Hoon Kim, Ying Chieh Hu, Jong Hun Kim, Inseo Kim, Jeongwan Lee, Joonhyuk Lee, Won Hyuk Shon, Hanjin Yoo, Chul-Un Ro, Seungsu Lee, Hyoungjeen Jeen, Minbaek Lee, Minseok Choi, Jong Hoon Jung
Summary: With the rapid development of the Internet of Things and artificial intelligence, smart home has emerged to fulfill the security, convenience, and energy-saving issues of modern life. A flexoelectric mica crystal is used to augment the finger touch-driven triboelectric output for operating a wireless and multichannel smart home controller. This work provides important ingredients for enhancing triboelectric output and realizing a convenient, multifunctional, cost-effective, and adaptable smart home control system without batteries.
Article
Chemistry, Physical
Yi Han, Fang Wu, Xiaozhen Du, Zihao Li, Haixiang Chen, Dongxing Guo, Junlei Wang, Hong Yu
Summary: This paper presents a novel type of triboelectric nanogenerator that utilizes wind energy, with a Y-type bluff body to enhance vibration and output power. The application of this generator successfully provides power for a wireless temperature and humidity sensor.
Article
Chemistry, Physical
Wen Zhang, Fangyuan Cheng, Miao Chang, Yue Xu, Yuyu Li, Shixiong Sun, Liang Wang, Leimin Xu, Qing Li, Chun Fang, Meng Wang, Yuhao Lu, Jiantao Han, Yunhui Huang
Summary: This study successfully induced the formation of a uniform and robust CEI by constructing ZrO2 nano-rivets on the surface of LCO, stabilizing the surface of high-voltage LCO and facilitating lithium-ion diffusion.
Article
Chemistry, Physical
Karl P. Olson, Laurence D. Marks
Summary: This paper investigates the role of contacting shapes in triboelectricity and provides scaling rules for designing energy harvesting devices.
Article
Chemistry, Physical
Jong-An Choi, Jingu Jeong, Mingyu Kang, Hee-Jin Ko, Taehoon Kim, Keun Park, Jongbaeg Kim, Soonjae Pyo
Summary: Wind-driven triboelectric nanogenerators (WTENGs) are a promising emerging technology for sustainable wind energy harvesting, offering high output performance, lightweight design, and compact dimensions. This study introduces an innovative WTENG design that leverages a rolling-based mechanism to achieve efficient omnidirectional wind energy harvesting.
Article
Chemistry, Physical
Liwei Dong, Qian Tang, Chaoyang Zhao, Guobiao Hu, Shuai Qu, Zicheng Liu, Yaowen Yang
Summary: This paper proposes a novel hybrid scheme for flag-type nanogenerators (FNGs) that enhances their performance and broadens their operational wind speed ranges by harnessing the synergistic potential of two aerodynamic behaviors. The proposed flag-type triboelectric-piezoelectric hybrid nanogenerator (FTPNG) integrates flapping piezoelectric flags (PEFs) and a fluttering triboelectric flag (TEF). The FTPNG achieves significant power generation and a broad wind speed range, surpassing other FNGs, making it suitable for various self-powered systems and Internet of Things applications.
Review
Chemistry, Physical
Yunmeng Li, Xin Liu, Zewei Ren, Jianjun Luo, Chi Zhang, Changyong (Chase) Cao, Hua Yuan, Yaokun Pang
Summary: The demand for green and eco-friendly materials is growing due to increasing environmental concerns related to traditional petroleum-based products. Marine biomaterials have emerged as a promising alternative, thanks to their abundant availability, biocompatibility, biodegradability, and low toxicity. In this review, we discuss the development and applications of triboelectric nanogenerators (TENGs) based on marine biomaterials. The operational modes, foundational principles, intrinsic qualities, and advantages of marine biomaterials commonly used in TENG designs are highlighted. Approaches to enhance the efficacy of TENGs derived from marine biomaterials are also discussed, along with documented applications from existing literature. Furthermore, the existing challenges and future directions in marine biomaterial-inspired TENGs are explored.
Article
Chemistry, Physical
Matthew P. Wells, Adam J. Lovett, Yizhi Zhang, Zhongxia Shang, Kosova Kreka, Babak Bakhit, Haiyan Wang, Albert Tarancon, Judith L. MacManus-Driscoll
Summary: Reversible solid oxide cells (rSOCs) offer a promising solution to efficient energy conversion, but have been limited in portable power and electrolysis applications due to excessive polarisation resistance of the oxygen electrode at low temperatures. This study demonstrates the growth of symmetric and complete rSOC structures with reduced polarisation resistance by tuning oxygen vacancy through annealing, providing a promising route towards high-performance rSOC devices for portable power applications.
Article
Chemistry, Physical
Kangkang Bao, Minghui Wang, Yue Zheng, Panpan Wang, Liwen Yang, Yang Jin, Hui Wu, Bin Sun
Summary: This study utilizes ethanol as an electrolyte additive to modulate the migration of zinc ions and the surface structure of zinc anodes, resulting in improved capacity retention and cycle life of zinc-based aqueous batteries.
Article
Chemistry, Physical
Haichao Yang, Wensi Cai, Ming Wang, Saif M. H. Qaid, Zhiyuan Xu, Huaxin Wang
Summary: The introduction of sodium alginate (SA) into perovskite solar cells improves the carrier dynamics, stability, and performance by inhibiting nonradiative recombination and retarded charge dynamics.
Article
Chemistry, Physical
Cuirong Zhang, Mingyuan Wei, Zihan Chen, Wansheng Lin, Shifan Yu, Yijing Xu, Chao Wei, Jinwei Zhang, Ziquan Guo, Yuanjin Zheng, Qingliang Liao, Xinqin Liao, Zhong Chen
Summary: Artificial Intelligence of Things (AIoT) aims to establish smart and informative interactions between humans and devices. However, common pixelated sensing arrays in AIoT applications present problems such as hard and brittle devices, complex structures, and low precision. This article introduces an innovative solution called the all-in-one intelligent semitransparent interactive nerve patch (AISI nerve patch), which integrates sensing, recognition, and transmission functionalities into a thin and flexible patch. The AISI nerve patch is semitransparent, allowing for accurate identification without affecting aesthetics, and it can be attached to any curved surface for intelligent and interactive applications. With rapid response time and high precision recognition, it enables the integration of artificial intelligence and achieves high recognition accuracy for further development of AIoT.
Article
Chemistry, Physical
Youcun Bai, Heng Zhang, Huijun Song, Chong Zhu, Lijin Yan, Qin Hu, Chang Ming Li
Summary: A novel stainless-steel supported lattice-mismatched V-S-Se layered compound with high selenium vacancy was synthesized by adjusting the molar ratio of sulfur to selenium. The introduction of selenium vacancies created additional redox peaks of sulfur, providing more mass transport channels and active sites for zinc ions. The specific capacity and cycle stability of the electrode were significantly improved, demonstrating great potential for practical applications and providing insights into the effects of defects on battery performance.
Article
Chemistry, Physical
Yao Xiao, Puxian Xiong, Yakun Le, Zhenjie Lun, Kang Chen, Zhiduo Wang, Peishan Shao, Zhicong Chen, Dongdan Chen, Zhongmin Yang
Summary: This study successfully synthesized a material with multi-stimulus-responsive luminescence and confirmed the internal relationship between luminescence and defects by regulating the distribution and depth of defects. The dynamic process of multi-stimulus-responsive luminescence was validated by experimental and calculation results.
