Article
Chemistry, Physical
Maria Isabel Menendez, Nicolas Montenegro-Pohlhammer, Ricardo Pino-Rios, Rodrigo Urzua-Leiva, Simone Morales-Lovera, Merlys Borges-Martinez, Kevin Granados-Tavera, Ramon Lopez, Gloria Cardenas-Jiron
Summary: The photophysical, photovoltaic, and charge transport properties of fused core-modified expanded porphyrins were investigated using density functional theory and time-dependent density functional theory. The compounds showed absorption in the range of 700-970 nm for their Q bands and 500-645 nm for their Soret bands. The presence of thiophene rings in the macrocycle led to a bathochromic shift in the absorption wavelength, resulting in near-infrared absorptions. The charge transport study showed that pentaphyrin 1 and octaphyrin 4 were more conductive than hexaphyrin 2 or heptaphyrin 3.
JOURNAL OF CHEMICAL PHYSICS
(2023)
Article
Chemistry, Applied
Yongjie Ding, Jianhua Li, Shuaishuai Liu, Yanfang Tan, Kaihang Shi, Yunfei Jiao, Baoxiu Mi, Wenjuan Xu, Zhiqiang Gao
Summary: Two new phenothiazine dyes CBPTZ-BTD1 and CBPTZ-BTD2 were designed and synthesized in this work, with CBPTZ-BTD2 showing higher dye loading and strengthened ICT effect compared to CBPTZ-BTD1, resulting in better photovoltaic performance.
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
Ching-Chin Chen, Vinh Son Nguyen, Hsiao-Chi Chiu, Yan-Da Chen, Tzu-Chien Wei, Chen-Yu Yeh
Summary: New anthracene-bridged organic dyes CXC12 and CXC22 are designed and synthesized for high-efficiency dye-sensitized solar cells (DSSCs) under dim light. The addition of anthracene-acetylene group in CXC dyes extends the pi-conjugation of the molecules, resulting in improved absorption and molar extinction coefficient. Among the three anthracene-based dyes, CXC22 shows the most appropriate molecular structure for light harvesting and balancing dye loading and molecular aggregation, achieving a remarkable power conversion efficiency of 37.07% under dim-light conditions.
ADVANCED ENERGY MATERIALS
(2022)
Review
Chemistry, Physical
Afsaneh Farokhi, Hashem Shahroosvand, Fatemeh Zisti, Melanie Pilkington, Mohammad Khaja Nazeeruddin
Summary: This comprehensive review focuses on the application of triphenylamines (TPAs), a prominent class of organic molecules, in dye-sensitized/organic solar cells. By exploring synthesis strategies for TPA derivatives, researchers have successfully improved the power conversion efficiencies of the cells and provided strong support for future commercial applications.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Li Zhang, Junjie Zhang, Xu Tang, Yong Chen, Xinting Wang, Zijian Deng, Changchun Wang, Xichuan Yang, Bin Sun
Summary: In this study, the design of coplanar organic dyes ZL002, ZL004, and ZL006 with rigid structures led to densely packed arrangements on the surface of TiO2, resulting in improved photoelectric properties, electron injection efficiency, and longer charge-recombination lifetime.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Margarita Buzancic Milosavljevic, Antonija Mravak, Martina Peric Bakulic, Vlasta Bonacic-Koutecky
Summary: In this study, the structural, optical, and photovoltaic properties of novel bio-nano hybrids (dye-nanocluster), along with a TiO2 surface model, are investigated for their application in dye-sensitized solar cells (DSSC). Specifically, a group of anthocyanidin dyes covalently bound to silver nanoclusters (NCs) with even or odd number of valence electrons were studied. The results show that the nanoclusters with an even number of valence electrons exhibit better acceptor properties in the hybrids. Additionally, the interaction between the bio-nano (dye-NC) hybrid and the TiO2 surface model was studied in terms of near-infrared absorption and charge separation. Overall, this theoretical study provides insights for the design of novel DSSCs based on bio-nano hybrids at the TiO2 surface.
Review
Environmental Sciences
Mary Rosana Nalzala Thomas, Vincent Joseph Kanniyambatti Lourdusamy, Aparna Annamalai Dhandayuthapani, Vijayalakshmi Jayakumar
Summary: The emergence of novel technologies has led to the necessity for environmental and economic integration, with a focus on energy consumption. Renewable resources like solar and wind energy are being opted for to meet future needs, with dye-sensitized solar cells considered as a better alternative due to their ability to function under various conditions.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Materials Science, Multidisciplinary
Jianyong Wan, Yeshen Liu, Hongda Guo, JingJing Liang, Lvming Qiu, Yuhao Lu, Haibo Xiao
Summary: Six organic sensitizers were synthesized to improve the thermal/photo-stability and solubility while suppressing dye aggregation. The resulting devices showed higher performance due to weak or no aggregation.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Chemistry, Physical
Jincheng An, Zhifeng Tian, Li Zhang, Xichuan Yang, Bin Cai, Ze Yu, Liyan Zhang, Anders Hagfeldt, Licheng Sun
Summary: Three novel push-pull dyes, AJ502, TZ101 and TZ102, were synthesized and used as co-sensitizers in dye-sensitized solar cells (DSSCs). Among them, the co-sensitization of AJ502 with TZ101 and TZ102 significantly improves the power conversion efficiency of the DSSC, with the fluorine atoms in TZ101 playing a critical role in widening the active light capturing bands on the TiO2 film.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Chemistry, Multidisciplinary
Peijin Zheng, Jian Xu, Fei Peng, Shengming Peng, Junxu Liao, Hongbin Zhao, Ledong Li, Xiangyan Zeng, Heyu Yu
Summary: The dye BT5, with a carbazole-containing triarylamine as the electron-donating unit, shows better photovoltaic performance, broader absorption spectrum, and higher molar extinction coefficient in DSCs compared to BT4 and BT6. Incorporating the BT unit into the dye backbone can lead to a pronounced electron transfer effect, affecting the absorption bands, Stokes shifts, and overall power conversion efficiency of DSCs.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Energy & Fuels
Kai Chen, Nan Han, Weitao Shao, Jing Xiao, Shupeng Zhang, Zhiyuan Zheng, Guang Shao, Jing-Kun Fang
Summary: Double branch (DB) dyes with acetylenic bonds as isolation groups exhibit enhanced light-harvesting capabilities and improved photovoltaic performance. Connecting two dye molecules to form a DB dye leads to higher efficiencies in Dye-sensitized solar cells (DSSCs), with a diyne unit as the isolation group showing even greater potential for achieving better photovoltaic performance.
Article
Chemistry, Multidisciplinary
Chundan Lin, Yanbing Liu, Di Shao, Guochen Wang, Huiying Xu, Changjin Shao, Wansong Zhang, Zhenqing Yang
Summary: A series of double donor organic dyes, ME101-ME106, designed in this work based on experimentally synthesized dye WD8, show higher stability and electron performance than the single donor dye. Among them, ME106 exhibits potential application value with a smaller energy gap and significant redshift compared to WD8. Results suggest that double donor dyes have stronger electron transfer capability, offering new insights for the design of high efficiency dye-sensitized devices.
Article
Engineering, Electrical & Electronic
Samantha Ndlovu, Edigar Muchuweni, Moses A. Ollengo, Vincent O. Nyamori
Summary: The development of new semiconductor materials for DSSCs, such as the RGO-SSFC nanocomposites, can significantly improve the power conversion efficiency and address the challenges of charge carrier recombination. The presence of RGO nanosheets decorated with irregular- and spherical-shaped SSFC nanoparticles allows for effective dye loading, high photon absorption, and efficient electron transfer. The RGO-SSFC-0.5 nanocomposite shows enhanced performance with a PCE of 7.25%.
JOURNAL OF ELECTRONIC MATERIALS
(2023)
Article
Chemistry, Applied
Raquel Royo, Amelia Dominguez-Celorrio, Santiago Franco, Raquel Andreu, Jesus Orduna
Summary: The synthesis and photovoltaic study of five dyes based on 4H-pyranylidene moiety as donor moiety is reported. Their electrochemical and optical properties are analyzed by using a joint experimental and theoretical approach. The presence of the trifluoromethyl group leads to an enhancement of the molar extinction coefficient.
Article
Biotechnology & Applied Microbiology
Chong Wang, Lingling Li, Mengya Li, Weiqiong Wang, Zhongxing Jiang
Summary: Drug resistance is the main reason for the failure of Bortezomib in the treatment of multiple myeloma. This study provides substantial evidence on the function and mechanism of FTO in promoting Bortezomib resistance.
CANCER GENE THERAPY
(2023)
Article
Chemistry, Multidisciplinary
Sarune Daskeviciute-Geguziene, Yi Zhang, Kasparas Rakstys, Chuanxiao Xiao, Jianxing Xia, Zhiheng Qiu, Maryte Daskeviciene, Tomas Paskevicius, Vygintas Jankauskas, Abdullah M. Asiri, Vytautas Getautis, Mohammad Khaja Nazeeruddin
Summary: In this study, a series of donor-acceptor-donor (D-A-D) type small molecules based on fluorene and diphenylethenyl enamine units were developed as hole transporting materials (HTMs) for perovskite solar cells. The incorporation of malononitrile acceptor units not only improved carrier transportation efficiency but also passivated defects through Pb-N interactions. The HTM V1359 achieved a higher power conversion efficiency of over 22% compared to spiro-OMeTAD under the same conditions, demonstrating that HTMs prepared via simplified synthetic routes are not only a cost-effective alternative to spiro-OMeTAD but also exhibit superior efficiency and stability than materials obtained through expensive cross-coupling methods.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Review
Chemistry, Multidisciplinary
Zhihao Zhang, Lu Qiao, Ke Meng, Run Long, Gang Chen, Peng Gao
Summary: Lead halide perovskite solar cells have achieved significant progress in efficiency and stability. This review discusses various passivation strategies to address the challenges of defects, charge recombination, and stability in perovskite materials. The article also highlights the need for advanced characterization techniques to understand the mechanisms behind the passivation strategies, and proposes future research directions.
CHEMICAL SOCIETY REVIEWS
(2023)
Article
Engineering, Electrical & Electronic
Qi-Zhen Chen, Chun-Yan Shi, Ming-Jie Zhao, Peng Gao, Wan-Yu Wu, Dong-Sing Wuu, Ray-Hua Horng, Shui-Yang Lien, Wen-Zhang Zhu
Summary: This study investigates the transparent indium-gallium-zinc oxide thin film transistor (IGZO-TFT) prepared by all plasma enhanced atomic layer deposition (PEALD). The properties of the IGZO film and IGZO-TFT based on different In2O3 cycle ratios are examined due to the considerable impact of chemical composition on the performance of IGZO TFTs. The IGZO film prepared by PEALD exhibits amorphous state with excellent conformity and uniformity. By applying a-IGZO films with different In2O3 cycle ratios, a satisfactory electrical performance of the transistor is achieved, with a threshold voltage (V-th) of 1.7 V, a saturation mobility (mu(sat)) of 8.8 cm(2)/Vs, a subthreshold swing (SS) of 0.2 V/decade, and an I-ON/I-OFF of 2.2 x 10(8). This work provides a new approach for achieving transparent TFTs that are more suitable for practical commercial applications.
IEEE ELECTRON DEVICE LETTERS
(2023)
Review
Materials Science, Multidisciplinary
Zicheng Li, Bolong Zhang, Zhihao Zhang, Jean-Claude Buenzli, Abd Rashid bin Mohd Yusoff, Yong-Young Noh, Peng Gao
Summary: Metal-halide perovskites-based optoelectronic devices, such as solar cells and LEDs, have become direct competitors to established technologies due to their cost-effectiveness. However, their development is still limited by narrow absorption band, low charge carrier mobility, energy level mismatching, and poor stability. Lanthanides have been applied to overcome these limitations. This article provides a review of the history and recent developments in lanthanide materials for perovskite optoelectronic devices.
MATERIALS SCIENCE & ENGINEERING R-REPORTS
(2023)
Article
Chemistry, Multidisciplinary
Yingyao Zhang, Longhui Deng, Yongjoon Cho, Jungho Lee, Naoyuki Shibayama, Zilong Zhang, Can Wang, Zhenyu Hu, Jing Wang, Feiyan Wu, Lie Chen, Yitian Du, Fangbin Ren, Changduk Yang, Peng Gao
Summary: In this work, the internal mechanism of regioregularity on thermoelectric performances in donor-acceptor type polymers is studied. It is found that higher molecular structure regularity can lead to better thermoelectric performances. However, the regular backbone also implies lower miscibility with a dopant, negatively affecting thermoelectric performance. A trade-off between doping efficiency and miscibility plays a vital role in organic thermoelectric materials.
Review
Chemistry, Multidisciplinary
Jianxing Xia, Muhammad Sohail, Mohammad Khaja Nazeeruddin
Summary: This review emphasizes the importance of interface tailoring for the efficiency and stability of Perovskite Solar Cells (PSCs). The reported strategies mainly focus on energy level adjustment and trap state passivation to enhance the photovoltaic performance of PSCs. The article classifies molecule modifications based on the electron transfer mechanisms and discusses the application of Density Functional Theory (DFT) method in interface tailoring. Additionally, strategies addressing environmental protection and large-scale mini-modules fabrication through interface engineering are also discussed. This review serves as a guide for researchers to understand interface engineering and design efficient, stable, and eco-friendly interface materials for PSCs.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Inorganic & Nuclear
Babak Pashaei, Hashem Shahroosvand, Hamed Douroudgari, Saeid Abaspour, Morteza Vahedpour, Mohammad Khaja Nazeeruddin
Summary: Near-infrared luminescent materials have gained significant attention for various applications, such as solid-state lighting, bioimaging, photovoltaic cells, and the telecommunications industry. Through the synthesis and optoelectronic characterization of novel ionic ruthenium complexes, we have discovered red emitters with intense fluorescence. Benchmark calculations and further investigations on electronic transitions have provided valuable insights, and the single-layer devices fabricated with these complexes have exhibited high external quantum efficiency.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Applied
Wenbo Li, Yuheng Li, Zilong Zhang, Peng Gao
Summary: This study explored the potential of lead-free perovskite materials for solar energy conversion by varying the trivalent gold ion and halogen anion in Cs2AuIAuIIII6. 18 new structures with unique properties were discovered, among which Cs2AuSbCl6, Cs2AuInCl6, and Cs2AuBiCl6 are potential candidates for solar cell absorbers with a spectroscopic limited maximum efficiency (SLME) of approximately 30%. The discovery of these new materials provides new insights into solar energy conversion.
JOURNAL OF ENERGY CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Zilong Zhang, Can Wang, Feng Li, Lusheng Liang, Liulian Huang, Lihui Chen, Yonghao Ni, Peng Gao, Hui Wu
Summary: In this study, a bifunctional cellulose derivative (C-Cz) is used as an interfacial material for perovskite solar cells (PSCs). With excellent energy level alignment, thermal stability, and strong interactions with the perovskite surface, C-Cz improves carrier transportation and passivates potential defects. As a result, PSCs modified with C-Cz achieve a significantly enhanced power conversion efficiency (PCE) of 23.02% and improved long-term stability.
Article
Chemistry, Inorganic & Nuclear
Chongzhu Hu, Zhuangzhuang Zhang, Jun Chen, Peng Gao
Summary: Organic-inorganic hybrid perovskites have shown high efficiency in photovoltaic applications, enabling the commercialization of perovskite solar cells (PSCs). A post-treatment strategy utilizing methylhydrazine iodide (MHyI) has been demonstrated to passivate the surface of the perovskite film, effectively reducing defects and suppressing carrier non-radiative recombination. The modified PSCs exhibited significantly improved power conversion efficiency and stability.
Article
Chemistry, Physical
Minghuang Guo, Jianbin Xu, Jinting Li, Jianting Huang, Jingwei Zhu, Yafeng Li, Peng Gao, Junming Li, Mingdeng Wei
Summary: To improve the performance of perovskite solar cells (PSCs), researchers have used passivators to address the defects of perovskite. In this study, a passivator called TA-MN, which has a symmetric bidentate acceptor, was found to have a strong synergistic passivating ability due to the presence of two symmetric cyano groups (CN). This passivator achieved a higher power conversion efficiency (PCE) of 21.19% compared to the TA-CA passivator (20.54%) and the control group (19.49%). The TA-MN-based PSCs also demonstrated good stability and scalability. These findings provide useful insights for the design of passivators with symmetric bidentate acceptors.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Fatemeh Sadeghi, Babak Pashaei, Babak Nemati Bideh, Negin Sabahi, Hashem Shahroosvand, Mohammad Khaja Nazeeruddin
Summary: Low-cost and facile synthesis routes of hole-transporting materials (HTMs) are promising for reducing the cost of perovskite solar cells. In this study, a cost-effective HTM based on imidazole was synthesized and showed comparable performance to a traditional HTM (spiro-OMeTAD). The easy synthesis and low cost of this HTM make it a potential candidate for low-cost solar cells.
Review
Chemistry, Physical
Anastasia Soultati, Marinos Tountas, Konstantina K. Armadorou, Abd. Rashid bin Mohd Yusoff, Maria Vasilopoulou, Mohammad Khaja Nazeeruddin
Summary: Halide perovskites are promising candidates for the next generation of photovoltaic technologies due to their unprecedented increase in power conversion efficiency, low cost, easy fabrication, and excellent semiconductor properties. In this review, the authors investigate various synthetic procedures for depositing perovskite polycrystalline films and single crystal layers, and explore the relationship between synthetic approaches and material properties relevant to photovoltaic and other applications.
Review
Chemistry, Physical
Afsaneh Farokhi, Hashem Shahroosvand, Fatemeh Zisti, Melanie Pilkington, Mohammad Khaja Nazeeruddin
Summary: This comprehensive review focuses on the application of triphenylamines (TPAs), a prominent class of organic molecules, in dye-sensitized/organic solar cells. By exploring synthesis strategies for TPA derivatives, researchers have successfully improved the power conversion efficiencies of the cells and provided strong support for future commercial applications.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
