Article
Chemistry, Physical
Shanmuganathan Venkatesan, Nguyen Huong Tra My, Hsisheng Teng, Yuh-Lang Lee
Summary: Thin films of solid-state polymer electrolytes (SSPEs) have been developed for dye-sensitized solar cells (DSCs) for the first time. Gel-electrolytes are prepared by utilizing a blend of poly(ethylene oxide) (PEO)/polyethylene glycol (PEG) and an acetonitrile-based iodide liquid electrolyte, and then cast onto a glass substrate to fabricate solvent-free SSPEs by evaporating the solvent. The SSPE films are sandwiched between photoelectrodes and counter electrodes to assemble the solid-state DSCs, and the PCE can be improved by introducing TiO2 nanofillers in the SSPEs. The high stability of the solid-state DSCs is demonstrated with a retention of 98% of their original efficiency after a 700-hour test period.
JOURNAL OF POWER SOURCES
(2023)
Article
Chemistry, Physical
William E. Meador, Nalaka P. Liyanage, Jonathon Watson, Katelyn Groenhout, Jared H. Delcamp
Summary: This article investigates two near-infrared sensitizers containing a proaromatic thienopyrazine (TPZ) auxiliary acceptor to enhance the efficiency of dye-sensitized solar cells. The optical, electrochemical, and device properties of the sensitizers were studied. Optimized devices, sensitized with Y123, achieved high photocurrent values of 20.3 and 14.4 mA/cm2 for WM1 and WM2, respectively.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Zhanjun Li, Yang Zhao, Kai Huang, Ling Huang, Yuanwei Zhang, Hong Yang, Gang Han
Summary: The dye-sensitization strategy was found to effectively enhance the renewable PersL signals of NIR emitting ZGC nanoparticles under long-wavelength LED light. This new method enables simultaneous tumor localization and microscopic tumor cell detection in pathological diagnosis during tumorectomy procedure.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Energy & Fuels
Seungyoon Seok, Gyuho Shin, Hyojung Jung, Jieun Lee, Burragoni Sravanthi Goud, Ganesh Koyyada, Jae Hong Kim
Summary: In this study, the newly developed DACE technique was used to achieve panchromatic absorption in solid state DSSC. The TVP208 sensitized working electrode and DPP13 based DACE electrode showed complementary absorption nature, leading to an efficiency of 5.08% in the SS-DSSC device. The improved efficiency of DACE based devices can be attributed to the enhanced light harvesting property.
Article
Engineering, Electrical & Electronic
Hammad Cheema, Jonathon Watson, Jared H. Delcamp
Summary: The mechanically stacked single illuminated area sequential series multijunction dye-sensitized solar cells were fabricated with different bottom devices including DSC, Si, and GaAs, and the performance was investigated. The conversion of near-infrared photons and the response to low-light conditions for different technologies were studied, with GaAs and DSC showing superior performance under harsh temperatures.
ACS APPLIED ELECTRONIC MATERIALS
(2021)
Article
Environmental Sciences
Amutha Soosairaj, Ahalya Gunasekaran, Sambandam Anandan, Leo Rajesh Asirvatham
Summary: This study explored the use of new natural dyes derived from Leucophyllum frutescens and Ehretia microphylla, as well as their combination, in dye-sensitized solar cells (DSSCs) for the first time. The absorption range, emission intensities, and functional groups of the dyes and dye-loaded TiO2 films were analyzed. The photovoltaic performance of the fabricated devices was evaluated, and the co-sensitized cell LE2 showed the highest conversion efficiency of 1.33%.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Engineering, Electrical & Electronic
Rongpang Qin, Xinwei Jinhua, Jinghua Hu, Li Zhao
Summary: Different incorporation ratios of upconversion fluorescent materials were studied for their impact on cell performance. Optimal performance devices based on optimized ratios of UCNPs achieved a high-power conversion efficiency of 7.52%, representing a 28.8% improvement compared to conventional P25 nanoparticle-based DSSCs (5.84%). The enhanced performance of NaYbF4: Ho3+-based DSSCs can be attributed to the upconversion luminescence effect, high light-trapping efficiency, low charge transfer resistance, and long electron lifetime.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Review
Chemistry, Multidisciplinary
Ana Belen Munoz-Garcia, Iacopo Benesperi, Gerrit Boschloo, Javier J. Concepcion, Jared H. Delcamp, Elizabeth A. Gibson, Gerald J. Meyer, Michele Pavone, Henrik Pettersson, Anders Hagfeldt, Marina Freitag
Summary: Dye-sensitized solar cells (DSCs) and dye-sensitized photoelectrochemical cells (DSPECs) have seen a revival in recent years as they offer unique properties such as low cost, non-toxic materials, colorfulness, transparency, and efficiency in low light conditions. This review covers advancements in DSC technology over the past decade, including theoretical studies, characterization techniques, materials, applications, and commercialization efforts by various companies.
CHEMICAL SOCIETY REVIEWS
(2021)
Article
Physics, Multidisciplinary
H. Fan, Y. Liu, S. Zou, J. Duan, W. Liu
Summary: Different percentage Zn-doped SnO2 nanoparticles were synthesized using a sol-gel process. The addition of Zn reduced the crystalline size and band gap of the SnO2 nanoparticles, leading to improved charge transfer and increased power conversion efficiency in dye-sensitized solar cells.
INDIAN JOURNAL OF PHYSICS
(2022)
Article
Chemistry, Physical
L. Yuliantini, N. M. Nursam, L. M. Pranoto, Shobih, J. Hidayat, R. R. Sova, Isnaeni, E. S. Rahayu, M. Djamal, P. Yasaka, K. Boonin, J. Kaewkhao
Summary: In this study, Er3+ ion-doped glass was integrated into dye-sensitized solar cells (DSSC) as an up-conversion (UC) element, and its effect on the photovoltaic performances was investigated. It was found that placing the UC glass on the counter electrode side of DSSC significantly improved the power conversion efficiency, with the highest improvement of around 7.21%. This enhancement was primarily attributed to the improved light harvesting due to the UC mechanism within the device.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Electrochemistry
Ling Chen, Ji Xu, Rui Zhang, Jiangbin Xia
Summary: The study utilized chemical bath deposition to coat nickel microspheres on frosted glass as conductive substrates, followed by the deposition of a thin Pt layer using low-temperature immersion method and thermal decomposition method to obtain Pt/Ni/glass electrodes for dye-sensitized solar cells (DSCs). Results showed that the well-optimized LTIM-electrode achieved a significant increase in fill factor and power conversion efficiency for the DSC device.
ELECTROCHIMICA ACTA
(2021)
Article
Energy & Fuels
Sumit Kumar, Sunil Kumar, R. N. Rai, Youngil Lee, Thi Hong Chuong Nguyen, Soo Young Kim, Quyet Van Le, Laxman Singh
Summary: High-efficiency functionalized dye-sensitized solar cells (DSSCs) have gained attention as next-generation solar photovoltaics due to their low production costs, flexibility, transparency, and sustainable outputs. The structural transformation of the photoanode materials plays a crucial role in enhancing the conversion efficiency of DSSCs. Two-dimensional (2D) functionalized photoanodes have shown great potential in reducing charge recombination efficiency and promoting photoexcited electron transfer.
Article
Chemistry, Analytical
Xin Wang, Mengfei Li, Xue Zheng, Bin Sun, Yajun Wang, Jiajun Xu, Tianyang Han, Shengjie Ma, Shoujun Zhu, Songling Zhang
Summary: In this study, a ratiometric dual-near-infrared IIb (NIR-IIb) in vivo detection method is presented using analyte-responsive dye-triplet-sensitized downshifting nanoprobes. The method allows for accurate quantitative detection of analytes in biological tissue, ignoring the depth of penetration. The established detection curves can be used to accurately output the amount of the target analyte.
ANALYTICAL CHEMISTRY
(2023)
Article
Engineering, Electrical & Electronic
Koffi A. Kamenan, Anooja Jagadeesh, N'guessan Raymond Kre, Edja Florentin Assanvo, Suraj Soman, K. N. Narayanan Unni
Summary: A dye sensitized solar cell with a quasi-solid state electrolyte based on natural rubber and iodide electrolyte was successfully fabricated, showing improved power conversion efficiency and hindering back electron transfer. This work opens up possibilities for using natural raw materials in nature-inspired DSSC technology.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Chemistry, Analytical
Jinzhao Huang, Xuefei Zhang, Shiyu Li, Fei Qu, Biao Huang, Ran Cui, Yijing Liu, Wenbo Hu, Xiangliang Yang, Yan Zhang
Summary: We report a synthesis method for dye-sensitized fluorescent probes, which enhance the fluorescence performance of lanthanide nanoparticles at high doping concentration of Nd3+ by adding indocyanine green (ICG), enabling activatable second near-infrared (NIR-II) fluorescent imaging.
ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Jun-Ru Chang, Po-Hsun Ho, Chun-Hsiang Chen, Chun-Hao Chiang, Cheng-Hung Hou, Min-Chuan Shih, Hung-Chang Hsu, Wen-Hao Chang, Jing-Jong Shyue, Ya-Ping Chiu, Chun-Wei Chen
Summary: The researchers developed a reliable method for contact doping in 2D electronics, which effectively reduces contact resistance. Through a two-step doping process, strong and hysteresis-free doping was achieved, suitable for the commonly used transition-metal dichalcogenides. The method resulted in a record-high sheet conductance and carrier concentration in monolayer MoS2 devices.
Article
Chemistry, Multidisciplinary
Peng Chen, Yun Xiao, Lei Li, Lichen Zhao, Maotao Yu, Shunde Li, Juntao Hu, Bin Liu, Yingguo Yang, Deying Luo, Cheng-Hung Hou, Xugang Guo, Jing-Jong Shyue, Zheng-Hong Lu, Qihuang Gong, Henry J. J. Snaith, Rui Zhu
Summary: An improved two-step sequential deposition technique is demonstrated for inverted-structure metal halide perovskite solar cells (PSCs), resulting in significantly enhanced performance. The bottom organic hole-selective layer is treated with a binary modulation system, leading to the refinement of up and buried interfaces for the perovskite films and improved charge transportation. The optimized PSCs achieve a high power conversion efficiency of 23.4% and demonstrate good operational and thermal stability.
ADVANCED MATERIALS
(2023)
Article
Engineering, Environmental
Rohan Paste, Chintam Hanmandlu, Po-Yu Su, Cheng-Hung Hou, Hsin-An Chen, Chun-Wei Pao, Jing-Jong Shyue, Kuei-Hsien Chen, Heng-Liang Wu, Hong-Cheu Lin, Chih Wei Chu
Summary: In this study, a composite solid polymer electrolyte (SPE) with oxygen-deficient MoO3-x nanobelts as nanofillers was developed to address the issues of low ionic conductivity, flammability, and poor mechanical strength. The composite SPE exhibited higher ionic conductivity, enhanced mechanical strength, superior cycling performance, and lower flammability compared to the polymer-only SPE.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Chun-Yi Chou, Chi-Lin Mo, Chih-Piao Chuu, Ting-Yun Wang, Chin-Chao Huang, Cheng-Hung Hou, Chun-Ho Chuang, Yu-Sen Jiang, Jing-Jong Shyue, Miin-Jang Chen
Summary: This study proposes an innovative concept of atomic layer nucleation engineering (ALNE) and surface recovery (SR) techniques to achieve area-selective atomic layer deposition (AS-ALD) of Al2O3 between metal (W) and dielectric (SiO2) without the use of inhibitors. The ALNE treatment selectively removes weakly adsorbed precursors on the metal surface, while the SR process eliminates the oxidized layer caused by exposure to oxidants during the ALD process. With these techniques, AS-ALD with nearly 100% selectivity and a significant difference in Al2O3 thickness between SiO2 and W surfaces is achieved, even on patterned substrates with feature sizes as small as 10 nm.
CHEMISTRY OF MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Jiayu Li, Yangzhou Qian, Wen Li, Songcheng Yu, Yunxin Ke, Haowen Qian, Yen-Hung Lin, Cheng-Hung Hou, Jing-Jong Shyue, Jia Zhou, Ye Chen, Jiangping Xu, Jintao Zhu, Mingdong Yi, Wei Huang
Summary: In this study, the functionality of solution-based organic polymeric memristors was tuned to address the temperature issue, resulting in reliable performance under extreme temperatures. The working mechanism of the device was unveiled using X-ray photoelectron spectroscopy and time-of-flight secondary-ion mass spectrometry depth profiling. These findings will greatly accelerate the development of memristors in neuromorphic systems.
ADVANCED MATERIALS
(2023)
Article
Biochemistry & Molecular Biology
Yu-Yu Hsieh, Jing-Jong Shyue, Yu-Chiang Chao, Ken-Tsung Wong, Dario M. Bassani
Summary: The incorporation of biuret hydrogen-bonding sites onto chiral binaphthalene-based chromophores was investigated for the synthesis of sub-micron-sized, vesicle-like aggregates with chiroptical properties. Luminescent chromophores were synthesized via Suzuki-Miyaura coupling of the corresponding chiral 4,4'-dibromo-1,1'-bis(2-naphthol), and their emission spectrum could be tuned through conjugation extension. Scanning electron microscopy confirmed the spontaneous formation of hollow spheres with a diameter of ca. 200-800 nm, along with strong asymmetry in the circularly polarized absorption spectra. Circular polarization of the emission, with values of g(lum) = ca. 10(-3), could be further enhanced upon aggregation.
Article
Chemistry, Multidisciplinary
Kamani Sudhir K. Reddy, Yi-Chun Chen, Ru-Jong Jeng, Mahdi M. M. Abu-Omar, Ching-Hsuan Lin
Summary: In this study, waste polycarbonate (WPC) was efficiently upcycled to poly-(carbonate imine) vitrimers (PCIs) with unprecedented acid resistance to 5 M H2SO4. The upcycling of WPC is essential for sustainability, and the acid resistance of PCIs expands their application in acidic environments. This environmentally friendly work will attract the attention of researchers interested in sustainability and circularity.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Materials Science, Multidisciplinary
Jian Haur Lee, Jing-Xiang Huang, Chia-Hsun Chen, Yi-Ting Lee, Chin-Yiu Chan, Yi-Chung Dzeng, Po-Wen Tang, Chi Chen, Chihaya Adachi, Tien-Lung Chiu, Jiun-Haw Lee, Chin-Ti Chen
Summary: A novel near-ultraviolet (NUV) fluorescent BB4Ph based on the classic 1,1':4',1''-terphenyl fluorophore is designed, synthesized, and characterized. BB4Ph exhibits NUV fluorescence with a lambda(max) of 373 and 380 nm in solution and as a thin film, respectively. The non-doped BB4Ph organic light-emitting diodes (OLEDs) show external quantum efficiency (EQE) up to 5.24% with a NUV electroluminescence, while doped BB4Ph OLEDs with 4P-Cz as a dopant emitter exhibit the highest EQE of 6.99%.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Chemistry, Physical
Chintam Hanmandlu, Rohan Paste, Hsinhan Tsai, Shyam Narayan Singh Yadav, Kuan-Wen Lai, Yen-Yu Wang, Chandra Shekar Gantepogu, Chen-Hung Hou, Jing-Jong Shyue, Yu-Jung Lu, Tushar Sanjay Jadhav, Jian-Ming Liao, Hsien-Hsin Chou, Hui Qi Wong, Chao-Sung Lai, Dibyajyoti Ghosh, Sergei Tretiak, Ta-Jen Yen, Hung-Ju Yen, Chih-Wei Chu
Summary: This study used a holistic interface strategy to enhance the efficiency and stability of perovskite solar cells by decreasing the number of interfacial defect states. The researchers utilized three-dimensional triphenylamine-based nanographene precursors to form a bridge between the perovskite film and the hole transport layer, resulting in improved performance characteristics.
Article
Energy & Fuels
Hao-Wen Liu, Senthil-Kumar Parthasarathi, Shiki Thi, Yu-Ting Weng, Satish Bolloju, Chia-Chin Chen, Ru-Jong Jeng, Nae-Lih Wu
Summary: Composite cathodes consisting of LiNi0.8Co0.1Mn0.1O2 (NCM) and Li3InCl6 (LIC) are investigated for all-solid-state Li-ion batteries (ASSLIBs). The particle morphologies of NCM cathode materials affect the internal cracking within the composite electrodes and consequently the electrode performance. High current rates result in widespread microcracking in polycrystal NCM particles, while single-crystal NCM particles show fewer grains and better contact with the solid-state electrolytes (SSEs). A low-pressure single-crystal NCM ASSLIB exhibits good cycle stability comparable to liquid-electrolyte cells.
Article
Engineering, Environmental
Adane Desta Fenta, Chiao-Wen Lin, Syuan-Wei Li, Chao-Tsen Chen, Chin -Ti Chen
Summary: In this work, difluoro and dicyano substituted terpolymers based on isoindigo-sexithiophene & pi;-conjugated polymers were designed and characterized. The champion terpolymer, P6TI-1N1F, demonstrated superior performance in terms of electron/hole mobility, nanofibril and its agglomeration, charge recombination, polymer chain alignment, and photoluminescence quenching in binary and ternary thin films. The binary polymer solar cells (PSCs) based on a bulk heterojunction (BHJ) of P6TI-1N1F:PC71BM or P6TI-1N1F:IT4F showed the highest power conversion efficiency (PCE) of 10.4% or 11.9%, respectively, while the ternary PSCs achieved PCE as high as 12.8% or 14.5%.
CHEMICAL ENGINEERING JOURNAL
(2023)
Review
Chemistry, Multidisciplinary
Jian Haur Lee, Chin-Ti Chen
Summary: This review article surveys the application of organic small molecular materials, most of which are light-emitting, in the study of molecular alignment or orientation in thin films. Three practical characterization techniques, including variable angle spectroscopic ellipsometry (VASE), angle-dependent photoluminescence (ADPL), and grazing incidence wide-angle x-ray scattering (GIWAXS), have been used to investigate phosphorescent, thermally activated delayed fluorescence (TADF) materials, as well as non-phosphorescent and non-TADF materials.
JOURNAL OF THE CHINESE CHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Pei-Jin Lin, Cheng-Hung Liao, Shih-Chieh Yeh, Yu-Cheng Tseng, Feng-Cheng Chang, Wen-Chang Chen, Ru-Jong Jeng, Nae-Lih Wu, Chu-Chen Chueh
Summary: Solid polymer electrolytes with embedded oxidized cellulose nanofibers were developed using an environmentally friendly manufacturing process. These biocompatible electrolytes have great potential for increasing the sustainable economic value of lithium-ion batteries.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Engineering, Environmental
Yen-Chuan Chen, Ying-Chi Huang, Yi-Hua Huang, Ying-Feng Lin, Ho-Ching Huang, Ru-Jong Jeng, Yu-Wei Cheng, Chien-Hsin Wu
Summary: The development of raw materials from methane and carbon dioxide has the potential to reduce greenhouse gas emissions and global carbon footprint. Researchers have developed a new crosslink that can establish adaptable networks directly in water, enabling the production of a poly(vinyl acetate) composite with enhanced flexibility and elasticity. The material also exhibits shape-memory characteristics and recyclability.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Chemical
Chien-Chieh Hu, Jia-Ci Fang, Ru-Jong Jeng, Chien-Hsin Wu, Ying-Chi Huang, Yi-Ming Sun, Kueir-Rarn Lee, Juin-Yih Lai
Summary: This study proposes a new approach to fabricate high-efficiency regular through-pore PI composite microfiltration membranes using amphiphilic dendrons as surfactants. The membranes exhibit extremely high productivity and size-selective capabilities, and can successfully purify turbid water to clean water.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)