Review
Chemistry, Physical
Layla Haythoor Kharboot, Nor Akmal Fadil, Tuty Asma Abu Bakar, Abdillah Sani Mohd Najib, Norhuda Hidayah Nordin, Habibah Ghazali
Summary: Third-generation solar cells, such as dye-sensitized solar cells and quantum dot-sensitized solar cells, require counter electrodes (CEs) for their functionality. Platinum-based CEs are dominant but expensive, thus alternative materials like transition metal chalcogenides (TMCs) and transition metal dichalcogenides (TMDs) have been explored. This study provides a comprehensive review of the major components and working principles of these solar cells, and evaluates the performance efficiencies resulting from TMS-based CEs compared to Pt-based CEs.
Article
Energy & Fuels
Negin Beiraghdar, Hossein Dehghani, Malihe Afrooz
Summary: A low-cost and straightforward method was reported for modifying polysulfide electrolyte using amine additives to enhance CdS/CdSe QDSSCs performance. The addition of thiourea in the electrolyte solution played a crucial role in forming a molecular complex, increasing electron lifetime, J(SC), and improving PCE value.
Article
Chemistry, Multidisciplinary
Yao-Sheng Cheng, Yu-Ting Wu, Sofiannisa Aulia, Ching-Cheng Chang, Mia Rinawati, Ting-Ying Lee, Jia-Yaw Chang, Ni Luh Wulan Septiani, Brian Yuliarto, Min-Hsin Yeh
Summary: A quantum dot-sensitized solar cell (QDSSC) with cobalt manganese sulfide (CMS) composites as counter electrodes (CE) exhibits improved activity and stability. By controlling the precursor ratio of Co and Mn, the bimetallic CMS can be adjusted to manipulate the Sn2- reduction activity. The optimized CMS CEs also demonstrate a high solar-to-electricity conversion efficiency of 5.88 +/- 0.19% under 100 mW cm-2 irradiation, indicating their superior reduction activity to Sn2-.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Physical
Miguel Albaladejo-Siguan, David Becker-Koch, Elizabeth C. Baird, Yvonne J. Hofstetter, Ben P. Carwithen, Anton Kirch, Sebastian Reineke, Artem A. Bakulin, Fabian Paulus, Yana Vaynzof
Summary: Light-harvesting devices made from lead sulfide quantum dot absorbers have promising applications in third-generation photovoltaics. Passivating the quantum dot surfaces and managing the excess lead halide can improve device performance and stability.
ADVANCED ENERGY MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Stefan W. Tabernig, Lin Yuan, Andrea Cordaro, Zhi Li Teh, Yijun Gao, Robert J. Patterson, Andreas Pusch, Shujuan Huang, Albert Polman
Summary: We have designed an optically resonant bulk heterojunction solar cell to study the optoelectronic properties of nanostructured p-n junctions. By optimizing the nanoscale pattern, we were able to improve the efficiency of the solar cell by enhancing the absorption and charge-carrier extraction behavior. Our experiments and simulations showed significant improvement in infrared response and current gain in the patterned solar cell compared to the planar reference, demonstrating the importance of nanostructured geometries in enhancing solar cell performance.
Article
Chemistry, Multidisciplinary
D. Vinoth Pandi, V. Saraswathi, M. R. Venkatraman, N. Muthukumarasamy, S. Agilan, D. Velauthapillai, K. Brindhadevi, A. Pugazhendhi
Summary: PbS quantum dots and PbS quantum dots-sensitized ZnO nanostructures with rod-like shape were successfully synthesized. The prepared PbS quantum dots exhibited significant visible light absorption, and the light absorption of PbS quantum dots-sensitized ZnO nanorods was higher than that of bare ZnO nanorods. The uniform development of rod-like ZnO nanostructures with deposition of PbS quantum dots on the surface was observed from electron microscope images. The solar cells made using PbS quantum dots-sensitized ZnO nanorods achieved a power conversion efficiency of 1.2%.
MATERIALS TODAY CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Long Hu, Qi Lei, Xinwei Guan, Robert Patterson, Jianyu Yuan, Chun-Ho Lin, Jiyun Kim, Xun Geng, Adnan Younis, Xianxin Wu, Xinfeng Liu, Tao Wan, Dewei Chu, Tom Wu, Shujuan Huang
Summary: The research demonstrates that using potassium triiodide (KI3) additives can effectively optimize the surface chemistry of PbS CQDs, eliminate undesired atom configurations and surface defects, reduce surface trap states, and significantly improve device stability and efficiency.
Article
Electrochemistry
Akash S. Rasal, Chiranjeevi Korupalli, Girum Getachew, Tzung-Han Chou, Ting-Ying Lee, Anil V. Ghule, Jia-Yaw Chang
Summary: The study introduces novel nature-inspired biopolymer polydopamine (PDA)-based additives to polysulfide electrolytes, achieving efficient and stable quantum dot-sensitized solar cells (QDSSCs). The PDA-based additives not only boost conversion efficiencies but also greatly enhance device performance stability, possibly due to the antioxidative property of PDA neutralizing light-induced radicals.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Physical
Xing Meng, Yifan Chen, Fan Yang, Jieqi Zhang, Guozheng Shi, Yannan Zhang, Haodong Tang, Wei Chen, Yang Liu, Lin Yuan, Shaojuan Li, Kai Wang, Qi Chen, Zeke Liu, Wanli Ma
Summary: This study explores the potential of using conjugated polymers as hole-transporting layer (HTL) in lead sulfide (PbS) quantum dot solar cells. The precise regulation of the inorganic/organic interface is crucial for achieving high-performance devices. By introducing CsPbl(3) quantum dots as an interfacial layer between the PbS quantum dot active layer and the organic polymer HTL, the interface is mediated and favorable energy level alignment is achieved, resulting in improved charge extraction and reduced interfacial charge recombination. As a result, the photovoltaic performance is efficiently improved from 10.50% to 12.32%. This study may provide new guidelines for the device structural design of quantum dot optoelectronics by integrating different solution-processed semiconductors.
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
Chemistry, Physical
Haibin Wang, Moana Desbordes, Yun Xiao, Takaya Kubo, Keishi Tada, Takeru Bessho, Jotaro Nakazaki, Hiroshi Segawa
Summary: The heterojunction iodide ligand PbS quantum dot (QD) and ZnO nanowire (NW) solar cells demonstrate high charge separation efficiency, high external quantum efficiency in visible and infrared regions, and stability performance even after 500 days of storage without encapsulation. The PbS QD capping layer acts as an effective electron-blocking layer (EBL), contributing to the overall performance of the solar cells. The interdigitated architecture concept presents a promising strategy for achieving highly efficient and stable colloidal QD-based solar cells, with potential extensions to various organic and inorganic hybrid solar cells.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Yanli Shi, Xiaowen Zhou, Yuan Lin, Jianguang Jia
Summary: This paper investigates the influence of surface passivation on the performance of quantum dot sensitized solar cells (QDSSCs). The results show that using a ZnS/ZnSe double passivation layer can effectively inhibit charge recombination and significantly improve the conversion efficiency of the cells.
Article
Chemistry, Multidisciplinary
Cong Zhang, Xingtian Yin, Guojiang Qian, Zi Sang, Yawei Yang, Wenxiu Que
Summary: This article presents a solution-phase ligand exchange-based PbS-I quantum-dot-sensitized InGaZnO hybrid phototransistor with excellent air stability and tunable operation mode to meet different detection requirements.
ADVANCED FUNCTIONAL MATERIALS
(2023)
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, Physical
Maryam Ostadebrahim, Hossein Dehghani
Summary: In this study, the influence of ZnS, ZnSe, and ZnSxSe1-x layers in CdSexS1-x quantum dot based solar cells was systematically investigated, with ZnS and ZnS0.2Se0.8 identified as the optimal choices. The designed QDSSCs with these layers showed a significantly higher efficiency compared to bare QDSSCs.
APPLIED SURFACE SCIENCE
(2021)
Review
Materials Science, Multidisciplinary
Yong Ding, In Seok Yang, Zhaoqian Li, Xin Xia, Wan In Lee, Songyuan Dai, Detlef W. Bahnemann, Jia Hong Pan
PROGRESS IN MATERIALS SCIENCE
(2020)
Article
Materials Science, Multidisciplinary
Soong Keun Hyun, Bumhee Nam, Tae Kyung Ko, Chongmu Lee, Seung Bok Choi, Wan In Lee
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE
(2020)
Article
Environmental Sciences
Kwangsun Yu, Imteaz Ahmed, Dong-Il Won, Wan In Lee, Wha-Seung Ahn
Article
Chemistry, Multidisciplinary
Ting Zhao, Ruifeng Qian, Yang Tang, Jing Yang, Yitao Dai, Wan In Lee, Jia Hong Pan
Article
Environmental Sciences
Ting Zhao, Ruifeng Qian, Guanda Zhou, Yu Wang, Wan In Lee, Jia Hong Pan
Summary: The strategic integration of membrane water filtration with semiconductor photocatalysis provides deep purification with self-cleaning capability. Mesoporous WO3/TiO2 spheres show superior photocatalytic activity and high flux, making them promising for concurrent membrane filtration and solar photocatalysis.
Article
Environmental Sciences
Hye Jin Kang, Dong Ii Won, Yeongsu Lim, Jeongho Kim, Wan In Lee
Summary: The study found that Pt deposition greatly enhances the photocatalytic activity of ATO/TiO2, while Au or Ag depositions have less significant effects. Spectroscopic analysis indicated that Pt is most effective in scavenging electrons from the ATO CB. Pt/ATO/TiO2 produced significantly more CO2 than other catalysts, suggesting that Pt deposition can suppress charge recombination pathways effectively.
Article
Nanoscience & Nanotechnology
Sarnai Puntsagdorj, Agni Raj Koirala, Jargalsaikhan Gombovanjil, Nguyen Nguyen Khanh, Sang Do Sung, Wan In Lee, Kyung Byung Yoon
Summary: A facile stamping method was used to assemble ordered arrays of mesoporous WO3 micropillars, resulting in the preparation of a series of WO3 heterostructural bilayer photoanodes. The 2.5/7.5 photoanode displayed a higher photocurrent density compared to a plain WO3 sheet, due to increased charge carrier density and other beneficial factors.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Nanoscience & Nanotechnology
Hyeon-Seo Choi, Yu-Na Kim, Seungyeon Hong, Bowen Yang, Jiajia Suo, Ji-Youn Seo, Seok Joon Kwon, Anders Hagfeldt, Hyo Jung Kim, Wan In Lee, Hui-Seon Kim
Summary: Surface passivation using a mixed salt has been shown to improve the performance and stability of perovskite solar cells. The length of the alkyl chain in the mixed salt can manipulate the crystal formation dynamics and enhance the (001) plane. The enhanced crystal orientation during surface recrystallization reduces trap density and suppresses charge recombination, leading to an increase in open-circuit voltage and fill factor.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Nanoscience & Nanotechnology
So-Yeon Ju, Wan In Lee, Hui-Seon Kim
Summary: This study introduces the strategy of strain control into perovskite solar cells, showing that applying compressive strain can improve the long-term photovoltaic performance. The compressive strain-induced perovskite film exhibits relatively constant absorbance spectra, while the film without strain control gradually decays and develops an Urbach tail. Furthermore, the device without strain control displays unreliable and overestimated fill factor and conversion efficiency after long-term storage, whereas the compressive strain-induced device shows a stable performance with a 16% increase in fill factor over 911 hours.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Nanoscience & Nanotechnology
You Jin Park, Young In Jeon, In Seok Yang, Hyunsue Choo, Woo Seok Suh, So-Yeon Ju, Hui-Seon Kim, Jia Hong Pan, Wan In Lee
Summary: Novel TiO2 nanorods with different lengths are synthesized under a basic environment and applied as the electron transporting layer for perovskite solar cells. The nanorods exhibit superior photovoltaic performance compared to conventional TiO2 nanoparticles. Specifically, TiO2 nanorods with a length of 110 nm show the highest efficiency and improved long-term stability. The advantages of nanorod structures in the device and the suppression of charge recombination are discussed.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Yu-Na Kim, Ju-Hee Jo, Jeongho Kim, Hui-Seon Kim, Wan In Lee
Summary: Lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) is commonly used as a dopant in 2,2',7,7'-tetrakis[N,N-di(4-methoxyphenyl)amino]-9,9'-spirobifluor-ene (spiro-MeOTAD), but it results in poor thermal stability. Recently, zinc(II) bis(trifluoromethanesulfonyl)imide (Zn(TFSI)2) has been proposed as a potential replacement for LiTFSI. This study explores the use of Zn(TFSI)2 as a dopant for spiro-MeOTAD to investigate the thermal stability of perovskite solar cells (PSCs).
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Sarnai Puntsagdorj, Agni Raj Koirala, Jargalsaikhan Gombovanjil, Nguyen Nguyen Khanh, Sang Do Sung, Wan In Lee, Kyung Byung Yoon
Summary: A facile stamping method was developed to assemble ordered arrays of mesoporous WO(3 )micropillars, and heterostructural bilayer photoanodes with different layer structures were successfully prepared. Among them, the 2.5/7.5 exhibited a higher photocurrent density, which can be attributed to multiple factors.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Jin Woo Park, Yeongsu Lim, Kyung-Yeon Doh, Min Tai Jung, Young In Jeon, In Seok Yang, Hyeon-seo Choi, Jeongho Kim, Donghwa Lee, Wan In Lee
Summary: Cu-doped Ag2BiI5 powders were synthesized and used as light absorbers in solar cells, leading to a notable increase in power conversion efficiency. The enhancement was mainly attributed to the significant increase in light absorption caused by Cu doping. Additionally, Cu doping did not affect the stability of Ag2BiI5 under high humidity conditions.
SUSTAINABLE ENERGY & FUELS
(2021)
Article
Multidisciplinary Sciences
Han-Sol Yun, Byeong-Gyu Yun, Hye-Min Lee, Dae-Yong Jeong, Wan-In Lee, Nam-Hee Cho
SN APPLIED SCIENCES
(2019)
Article
Chemistry, Physical
In Seok Yang, Soomin Lee, Juseob Choi, Min Tai Jung, Jeongho Kim, Wan In Lee
JOURNAL OF MATERIALS CHEMISTRY A
(2019)
Review
Chemistry, Multidisciplinary
Dan He, Yawen Li, Fuwen Zhao, Yuze Lin
Summary: High trap density in organic solar cells leads to localized charge carriers and reduced carrier lifetime, limiting device efficiency. This feature article summarizes the recent advances of trap suppression by material design and device engineering.
CHEMICAL COMMUNICATIONS
(2024)
Review
Chemistry, Multidisciplinary
Olivier Monfort, Arshitha Madhusudhan, Martin Motola
Summary: This article presents the advantages of coupling photocatalysis and Fenton-based processes for environmental remediation and discusses their synergy. It critically examines the simultaneous triggering of these two processes and provides insights into research approaches. The study aims to enhance understanding of this complex process and highlight the potential integration of new catalysts in current wastewater treatment technology.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Manideepa Dhar, Chittaranjan Mishra, Avijit Das, Uttam Manna
Summary: An approach of 'polymerization of monomers in its aggregated form' has been introduced to tailor the water wettability of fibrous and porous substrates, achieving hydrophobicity to superhydrophobicity transition, as well as patterned wettability. This facile chemical method provides a durable coating with adjustable and patterned wettability for various potential applications.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Saswat Ranjan Bhoi, Chhanda Debnath, Shikha Gandhi
Summary: In this article, a novel catalytic reaction using Pd(0) and Bronsted acid is reported for the synthesis of biologically important imidazolidinone-fused N-heterocycles through redox-neutral intramolecular N-allylation of indoles and pyrroles with alkynes. This atom-economical method is applicable to a wide range of substrates and eliminates the need for leaving groups or oxidizing agents commonly used in traditional allylation reactions.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Longkun Chen, Mingshuai Zhang, Meichen Liu, Zhuoyuan Liu, Yuetong Qiu, Zhilai Zhang, Fuchao Yu, Jiuzhong Huang
Summary: In this study, an efficient Rh(III)-catalyzed selective mono- and dual-C-H bond functionalization/cyclization with iodonium ylide as the sole coupling partner was demonstrated. Fused benzodiazepine skeletons were obtained in excellent yields, providing an improved approach to dual C-H unsymmetrical functionalization.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Alice Kennett, Sven Epple, Gabriella van der Valk, Irene Georgiou, Evelyne Gout, Romain R. Vives, Angela J. Russell
Summary: This study presents the design and synthesis of sulfated disaccharide inhibitors based on IdoA(2S)-GlcNS(6S), which showed potent inhibition of Sulf-2. The results suggest that IdoA(2S)-GlcNS(6S) is the shortest fragment size required for effective inhibition of Sulfs, and a trisulfated disaccharide is identified as the minimal fragment size of heparan sulfate for effective endosulfatase inhibition.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Mauro Garbini, Andrea Brunetti, Riccardo Pedrazzani, Magda Monari, Massimo Marcaccio, Giulio Bertuzzi, Marco Bandini
Summary: The self-adaptability of galvanostatic electrolysis was found to be helpful in a multistage chemo- and diastereoselective electrochemically promoted cyclodimerization of chalcones. Through a series of reductive events, densely functionalized cyclopentanes with five contiguous stereocenters were obtained (25 examples, yields up to 95%, dr values up to >20:1). Further experimental and electrochemical investigations indicated the crucial role of dynamic kinetic resolution of the aldol intermediate in the reaction mechanism.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Dhananjay S. Nipate, Neha Meena, Prakash N. Swami, Krishnan Rangan, Anil Kumar
Summary: In this study, the synthesis of functionalized benzo[a]phenazines and indazolo[2,3-a]quinolines was achieved through Rh(III)-catalyzed oxidative annulation of 2-arylquinoxalines and 2-aryl-2H-indazoles with allyl alcohols. The method showed a wide substrate scope, excellent functional group tolerance, good to high yields of annulated products, and the capability for scaled-up synthesis. A tentative mechanism of the annulation reaction was proposed based on a preliminary mechanistic investigation.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Ruonan Zhang, Abudukadi Tudi, Xia Yang, Xuping Wang, Zhihua Yang, Shujuan Han, Shilie Pan
Summary: A new lead tellurium borate material with a unique fundamental building block [B4O10] was synthesized and found to exhibit high birefringence. The structure-property relationship was discussed using first-principles calculations.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Amresh Kumar Singh, Baishali Thakurta, Anupam Giri, Monalisa Pal
Summary: This study introduces three key concepts for the quick synthesis of large-scale high-quality 2D materials films and their utilization in device fabrication.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Reina Hagiwara, Shun Nishimura, Kosuke Okeyoshi
Summary: A copolymer-conjugated nanocatalytic system has been developed to improve electron transfer and enhance photoinduced H2 generation.
CHEMICAL COMMUNICATIONS
(2024)
