Article
Engineering, Electrical & Electronic
Nazir Mustapha, Muhammad Abdel-Shakour, Idriss Bedja, M. Abdel Rafea
Summary: The photovoltaic performance of black dye-based dye-sensitized solar cells can be improved by introducing long alkoxy group, tuning anchoring parts, and pi-spacer, which reduces dye aggregation and improves sensitizer coverage.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Electrochemistry
Lia Muliani, Jojo Hidayat, Shobih, Natalita Maulani Nursam, Erlyta Septa Rosa, Putri Nur Anggraini, Lilis Retnaningsih
Summary: Dye-sensitized solar cells (DSCs) rely on a photoelectrochemical mechanism. Recent advancements have focused on developing DSC modules for building-integrated photovoltaics (BIPVs), with the potential application as solar windows. The study demonstrates the successful fabrication of a DSC module on transparent conductive glass substrates, showing high performance under both direct sunlight and low light intensities, making it a promising option for solar window applications.
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Wei-Hao Chiu, Kun-Mu Lee, Vembu Suryanarayanan, Jen-Fu Hsu, Ming-Chung Wu
Summary: This study compares the device structures and photoanode designs of small and large size DSSC cells, highlighting the importance of TiO2 electrode optimization and the effects of factors such as dye concentration, soaking temperature, and electrolyte injection method on cell efficiency. By improving these processes, the module efficiency and performance of the DSSC cells have been successfully enhanced.
Article
Chemistry, Multidisciplinary
Ha Lim Cha, Seungyoon Seok, Hyun Jo Kim, Suresh Thogiti, Burragoni Sravanthi Goud, Gyuho Shin, Lee Ji Eun, Ganesh Koyyada, Jae Hong Kim
Summary: A new DSSC strategy using multiple dyes for full spectrum absorption was developed, with CO-DACE devices showing the highest efficiency compared to traditional DSSCs. This is attributed to enhanced IPCE and J(sc), highlighting the advantage of DACE electrode in maximizing incident light utilization.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2021)
Article
Chemistry, Physical
Yunfei Jiao, Shuaishuai Liu, Zhongjin Shen, Le Mao, Yongjie Ding, Dan Ren, Felix Thomas Eickemeyer, Lukas Pfeifer, Dapeng Cao, Wenjuan Xu, Juan Song, Baoxiu Mi, Zhiqiang Gao, Shaik M. Zakeeruddin, Wei Huang, Michael Gratzel
Summary: Heteroaromatic units are commonly used as pi-spacers for sensitizers in dye-sensitized solar cells. The type of pi-spacer strongly influences the solar to electric power conversion efficiency of organic dyes, with electron-rich pi-spacers leading to higher efficiency. Molecular engineering plays a crucial role in developing high efficiency organic dyes for DSSCs.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Chemistry, Physical
Wen-Feng Lai, Pei-Ling Chao, Xin-Yu Lin, Yin-Pei Chen, Jih-Hsin Liu, Tz-Feng Lin, Wei-Chou Hsu, Chia-Yi Huang
Summary: In this study, a one-dimensional protrusive TiO2 strip array was fabricated using chemical and physical methods. A porous semiconductor layer was coated on the strip array. The results showed that the DSSC with the TiO2 strip array had a higher energy conversion efficiency, which can be attributed to the large surface area of the protrusive structure and its specific electron transport paths.
Article
Chemistry, Physical
Shi Qiang Kang, En Zi Chen, Jun Di Cheng, Xiu Yun Gu, Kun Wei, Geng Zhi Sun, Xiu Ping Gao, Xiao Jun Pan, Jin Yuan Zhou, Er Qing Xie
Summary: In this study, tunable amount of macropores were introduced into hierarchically porous TiO2 (h-TiO2) to significantly improve the photovoltaic conversion efficiencies of dye-sensitized solar cells (DSSCs). The optimized design showed enhanced PCE and the DSSCs could function in dark.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Spectroscopy
A. M. B. Leite, H. O. da Cunha, A. F. C. R. Rodrigues, R. Suresh Babu, A. L. F. de Barros
Summary: In this study, natural dyes containing anthocyanin were extracted from three different species of the Chrysanthemum flower family and used as photosensitizers for constructing dye-sensitized solar cells (DSSCs). The performance and efficiency of the solar cells were evaluated, and it was found that the Chrysanthemum Violet (CV) cell had the highest photovoltaic conversion efficiency and open circuit voltage. This suggests that organic solar cells are a viable option for electric energy generation.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Chemistry, Multidisciplinary
Suruthi Priya Nagalingam, Andrews Nirmala Grace
Summary: This study focuses on the fabrication of a poly(3,4-ethylene dioxythiophene) decorated MXene composite electrode and tests its performance as a counter electrode in dye-sensitized solar cells. The results show that the composite electrode exhibits good electrocatalytic activity and charge transfer kinetics in the iodide/triiodide electrolyte, surpassing the performance of traditional counter electrodes. The 15-day stability investigation demonstrates that the composite electrode has good corrosion resistance. Therefore, the composite electrode shows potential as a substitute for platinum.
MATERIALS TODAY CHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
Wei-Min Tang, Chih-Chung Hu, Meng-Lin Tsai, Chung-Chen Tsao, Chun-Yao Hsu
Summary: This study focuses on the fabrication of dye-sensitized solar cells with a photoanode consisting of mesoporous TiO2 and V2O5 nanoparticles. By rinsing with acetone solution, the specific surface area and dye adsorption amount of TiO2 can be increased, leading to improved performance.
Article
Electrochemistry
Kaiyuan Yang, Xichuan Yang, Li Zhang, Jincheng An, Haoxin Wang, Zijian Deng
Summary: Two newly synthesized copper complexes with bipyridine ligands were used as redox mediators in dye-sensitized solar cells, demonstrating high efficiency and stability due to the introduction of alkoxy groups to enhance solubility and suppress charge recombination.
ELECTROCHIMICA ACTA
(2021)
Article
Physics, Multidisciplinary
Yu-Chih Chiang, Chia-Rong Lee, Chia-Yi Huang
Summary: A 90-nm-thick TiO2 grid was fabricated using photolithography, sputtering, and lift-off process. A nanoporous film was deposited on the TiO2 grid, which induced a protrusive structure. Experimental results showed that introducing the TiO2 grid into a dye-sensitized solar cell increased its power conversion efficiency by 25%. This improvement can be attributed to the large surface area and directional electron transport channels of the protrusive structure.
Article
Materials Science, Multidisciplinary
Chun-Hao Chang, Chia-Han Chuang, De-Yang Zhong, Jun-Cheng Lin, Chia-Chi Sung, Chun-Yao Hsu
Summary: This study focused on enhancing the optoelectronic performances of dye sensitized solar cells (DSSC) by mixing acetylacetone, graphene powder and TiO2 mesoporous. The addition of graphene and optimization of parameters led to improvements in efficiency and performance of DSSCs. Using a different substrate material also resulted in increased photovoltaic efficiency.
Article
Chemistry, Physical
Mine Ince, Ren Kuboi, Tuncay Ince, Kuon Yoshimura, Daiki Motoyoshi, Masahiro Sonobe, Ryota Kudo, Shogo Mori, Mutsumi Kimura, Tomas Torres
Summary: Incorporation of sulfur atoms onto zinc-phthalocyanine molecules led to a red shift in the absorption spectrum and decreased solar cell performance, likely due to the symmetrical electronic structure and lower excited state level caused by sulfur atoms.
SUSTAINABLE ENERGY & FUELS
(2021)
Article
Materials Science, Multidisciplinary
Dorel F. Albu, Jeanina Lungu, Gianina Popescu-Pelin, Cristian N. Mihailescu, Gabriel Socol, Adrian Georgescu, Marcela Socol, Alexandra Banica, Victor Ciupina, Ion N. Mihailescu
Summary: Active TiO2 semiconductor layers were synthesized using pulsed laser deposition under different gas atmospheres, and the morphological and structural characteristics of the TiO2 nanostructures were investigated. It was found that the gas nature played a key role in the deposited film's architecture and overall performance. The photovoltaic structures based on TiO2 coatings grown in He exhibited the best electro-optical performance.
Article
Energy & Fuels
Yanqiang Hu, Zhengyan He, Xiangrui Jia, Wenkai Zhao, Shufang Zhang, MengMeng Jiao, Qinfeng Xu, Dehua Wang, Chuanlu Yang, Guoliang Yuan, Liyuan Han
Summary: In this study, phosphorus-containing Lewis acids were used to modify the SnO2/perovskite interface, accelerating electron transfer and reducing energy barriers, ultimately increasing the efficiency of PSCs. The performance of the devices was significantly improved by this approach, with hysteresis effectively controlled.
Review
Chemistry, Multidisciplinary
Yajie Cheng, Hangjuan Wu, Junjie Ma, Pengwei Li, Zhenkun Gu, Shuangquan Zang, Liyuan Han, Yiqiang Zhang, Yanlin Song
Summary: This review provides an overview of inkjet-printed high-quality perovskite films and guidelines for inkjet-printing large-scale high-performance perovskite devices. It analyzes the theories of droplet formation and perovskite nucleation/crystallization dynamics, summarizes the strategies for perovskite film formation via inkjet printing, and reviews the recent advances of inkjet-printed perovskite films on optoelectronic devices.
Article
Chemistry, Multidisciplinary
Xinhui Luo, Zhichao Shen, Yangzi Shen, Zhenhuang Su, Xingyu Gao, Yanbo Wang, Qifeng Han, Liyuan Han
Summary: In order to improve the efficiency of perovskite solar cells, two organic molecules are studied as passivators. The results show that the molecular geometry and intermolecular ordering are significant for effective passivation. During the crystallization process via liquid medium annealing, passivation molecules can form a uniform network that reduces recombination at the interface.
ADVANCED MATERIALS
(2022)
Review
Chemistry, Multidisciplinary
Qingli Cao, Pengwei Li, Wei Chen, Shuangquan Zang, Liyuan Han, Yiqiang Zhang, Yanlin Song
Summary: Two-dimensional perovskites have gained extensive attention in the field of photovoltaics due to their intrinsic stability and tunability. Despite achieving high stability and conversion efficiency, the efficiency of 2D perovskite solar cells lags behind their 3D counterparts. This review focuses on the structural aspects of different types of 2D halide perovskites and discusses the influence of spacer physical characteristics on their performance, while exploring strategies for selecting novel spacers.
Article
Chemistry, Multidisciplinary
Hongzhen Su, Xuesong Lin, Yanbo Wang, Xiao Liu, Zhenzhen Qin, Qiwei Shi, Qifeng Han, Yiqiang Zhang, Liyuan Han
Summary: In this study, an all-in-one strategy integrating the oxidation of hole-transport material (HTM) with the formation of the passivation layer was proposed to overcome the challenges in device enlargement and operational stability of perovskite solar cells (PSCs). The resulting devices showed high performance and stability, making them suitable for commercial-scale fabrication methods.
SCIENCE CHINA-CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Xiangxiang Feng, Biao Liu, Yongyi Peng, Chenxi Gu, Xue Bai, Mengqiu Long, Mengqiu Cai, Chuanjia Tong, Liyuan Han, Junliang Yang
Summary: The study explains in detail the mechanism of improving the light stability of perovskite optoelectronic devices through surface passivation with strong chemical bonds using first principles calculations. It is found that iodine vacancy defects can trap free electrons and result in lattice rearrangement and the formation of a new chemical species, which can be prevented by passivating the Pb site, leading to enhanced light stability.
Article
Nanoscience & Nanotechnology
Tianhao Wu, Xiao Liu, Xinhui Luo, Hiroshi Segawa, Guoqing Tong, Yiqiang Zhang, Luis K. Ono, Yabing Qi, Liyuan Han
Summary: Lead-free tin perovskite solar cells have shown rapid development and promising efficiency, with the fabrication of a formamidinium tin iodide perovskite absorber with a vertical Sn2+ gradient to enhance the built-in electric field. The depth-dependent X-ray photoelectron spectroscopy revealed an increase in efficiency and open-circuit voltage for the tin PSCs, even after continuous operation under 1-sun illumination for 1,000 hours.
NANO-MICRO LETTERS
(2022)
Article
Chemistry, Applied
Tonghui Guo, Zhi Fang, Zequn Zhang, Zhiqiang Deng, Rui Zhao, Jing Zhang, Minghui Shang, Xiaohui Liu, Ziyang Hu, Yuejin Zhu, Liyuan Han
Summary: This study reveals the instability issue of perovskite in inorganic NiOx-based inverted structure perovskite solar cells (PSCs) caused by the interface chemical reactions between NiOx and MAPbI(3), and proposes a simple interface modification method using a self-assembled interlayer of silane to achieve stable PSCs with enhanced performance.
JOURNAL OF ENERGY CHEMISTRY
(2022)
Article
Energy & Fuels
Xuesong Lin, Hongzhen Su, Sifan He, Yenan Song, Yanbo Wang, Zhenzhen Qin, Yongzhen Wu, Xudong Yang, Qifeng Han, Junfeng Fang, Yiqiang Zhang, Hiroshi Segawa, Michael Graetzel, Liyuan Han
Summary: The use of a composite electrode of copper-nickel alloy and in situ-grown graphene improves the long-term stability of perovskite solar cells. This composite electrode has an appropriate work function and provides excellent protection against oxygen, water, and internal reactions. The resulting devices demonstrate high stability under various environmental conditions.
Review
Chemistry, Physical
Huaiqing Luo, Pengwei Li, Junjie Ma, Liyuan Han, Yiqiang Zhang, Yanlin Song
Summary: This article discusses the issues related to Pb-based perovskite solar cells, such as the toxicity and leakage of lead, and their impact on the environment. It also proposes strategies to address these issues, including inhibiting Pb leakage and achieving Pb recycling and sustainable utilization.
ADVANCED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Caiyi Zhang, Xiangqian Shen, Mengjiong Chen, Yan Zhao, Xuesong Lin, Zhenzhen Qin, Yanbo Wang, Liyuan Han
Summary: The inverted perovskite solar cell achieves a stable and efficient buried heterojunction by forming halogen bonding, which leads to improved power conversion efficiency and stability.
ADVANCED ENERGY MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Xuesong Lin, Yanbo Wang, Hongzhen Su, Zhenzhen Qin, Ziyang Zhang, Mengjiong Chen, Min Yang, Yan Zhao, Xiao Liu, Xiangqian Shen, Liyuan Han
Summary: Perovskite solar cells (PSCs) are advancing towards commercialization, but the high-cost halogen-reactive anode poses a challenge. This study utilizes halogen migration in PSCs to generate a uniform tunneling layer between the hole transport materials and anodes, breaking the Schottky barrier and enabling high-efficiency and stable PSCs.
NANO-MICRO LETTERS
(2023)
Article
Chemistry, Physical
Junfang Wang, Chenglin Yang, Hao Chen, Mingsheng Lv, Tianhua Liu, Haining Chen, Ding-Jiang Xue, Jin-Song Hu, Liyuan Han, Shihe Yang, Xiangyue Meng
Summary: A crystal growth kinetic regime called oriented attachment (OA) has been discovered for tin halide perovskites (THPs), which allows the fabrication of high-quality THP films for optoelectronic devices. By tuning the surface energy using 2-phenoxyethylamine bromide (POEBr), highly oriented FASnI3-POEBr perovskite films are obtained. The OA growth kinetics reduces the crystal growth rate and enables the formation of dense, smooth, and oriented THP films, resulting in an impressive efficiency of over 14%.
ACS ENERGY LETTERS
(2023)
Article
Energy & Fuels
Zhichao Shen, Xinhui Luo, Yangzi Shen, Xiao Liu, Hiroshi Segawa, Qifeng Han, Liyuan Han
Summary: Tin oxide is the mainstream electron transport layer in highly efficient perovskite solar cells due to its high mobility, transmittance, and UV stability. A seed-assisted growth strategy is developed to prepare a high-quality SnO2 layer at a low temperature (100 degrees C), resulting in a higher conductivity and mobility of the SnO2 layer. The solar cells achieved a high power conversion efficiency of 25.26% with a high-quality SnO2 layer formed at low temperature, and flexible perovskite solar cells also achieved a conversion efficiency over 22%.
Article
Chemistry, Multidisciplinary
Tianhao Wu, Luis K. Ono, Rengo Yoshioka, Chenfeng Ding, Congyang Zhang, Silvia Mariotti, Jiahao Zhang, Kirill Mitrofanov, Xiao Liu, Hiroshi Segawa, Ryota Kabe, Liyuan Han, Yabing Qi
Summary: Nickel oxide (NiOx) is a promising hole-selective contact for efficient perovskite solar cells (PSCs), but its long-term operational lifetime is limited by light-induced degradation. This study clarifies the degradation mechanism and proposes a solution by constructing a TMSBr buffer layer, resulting in significantly improved operational lifetimes for NiOx-based PSCs.
ENERGY & ENVIRONMENTAL SCIENCE
(2022)
