Article
Energy & Fuels
Junmin Lee, Byung Gi Kim, Dong Hwan Wang
Summary: In order to improve the efficiency of light sensing and energy conversion devices, the interfacial defects in perovskite devices need to be controlled. This study investigates the effects of an organic-small-molecule intermediate layer, PDINN, on the performance of perovskite devices. The performance characteristics are analyzed under different illuminance conditions.
Review
Nanoscience & Nanotechnology
Aiswarya Abhisek Mohapatra, Manasi Pranav, Suraj Yadav, Chandrasekhar Gangadharappa, Jiaying Wu, Chiara Labanti, Jakob Wolansky, Johannes Benduhn, Ji-Seon Kim, James Durrant, Satish Patil
Summary: The introduction of nonfullerene acceptors has led to high-efficiency organic solar cells, but they still have greater losses in open-circuit voltage compared to inorganic or perovskite solar cells. To improve this, the high dipole moment of twisted perylene-diimide is utilized as a nonfullerene acceptor in this study. By modifying the cathode with a polyethylenimine interlayer, the open-circuit voltage of the organic solar cells is enhanced.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Ilias Papadopoulos, David Gutierrez-Moreno, Yifan Bo, Ruben Casillas, Phillip M. Greissel, Timothy Clark, Fernando Fernandez-Lazaro, Dirk M. Guldi
Summary: In this study, a series of phenylene- and naphthalene-linked dimers were designed and synthesized to investigate the inherent differences in monoimide and diimide perylenes and their impact on singlet fission. The results showed that using naphthalene spacers improves the triplet quantum yield and singlet fission performance of both monoimide and diimide perylene derivatives.
Article
Chemistry, Multidisciplinary
Shuqi Chen, Shishi Feng, Albert J. J. Markvoort, Cankun Zhang, Enyang Zhou, WanZhen Liang, Hui-Jun Zhang, Yun-Bao Jiang, Jianbin Lin
Summary: A quadruple assembly was successfully constructed by self-assembly, in which four identical dye molecules were divided into two different aggregate states, achieving intelligent allocation of labor. This finding is expected to advance the rational design of dye stacks to emulate the functions of natural light-harvesting systems.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Nanoscience & Nanotechnology
Dan Zhou, Liangjing Han, Lin Hu, Shu Yang, Xingxing Shen, Yubing Li, Yongfen Tong, Fang Wang, Zaifang Li, Lie Chen
Summary: The field of organic solar cells has made rapid progress with the development of nonfullerene acceptors. Interfacial engineering, particularly the use of perylene diimide (PDI) small molecules as cathode interfacial materials, has been shown to enhance power conversion efficiency. However, the molecular aggregation and stacking caused by the high planarity of PDINN molecule affects the film morphology and charge transport efficiency. To address this issue, PDINN-S was synthesized by modifying the bay position of PDINN, leading to improved performance and stability of OSCs.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Analytical
Meiyi Liu, Weilian Zheng, Yi Yang, Ge Shi, Yining Li, Shuai Zhou, Yijian Zhao, Zhiyi Yao
Summary: This study presents a new strategy for real-time and on-site monitoring of TNP in the environment by integrating the PDI-BTMA probe with a smartphone. The sensing platform shows simplicity, rapidness, and portability, and successfully quantifies TNP through the supramolecular assembly of a perylene probe. The sensor exhibits dual output signals of color and fluorescence in response to TNP, with a wide linear range and a low detection limit.
MICROCHEMICAL JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Prajna Moharana, G. Santosh
Summary: This study discusses the hierarchical self-assembly mechanism, molecular interactions, molecular packing, and rheological properties of a newly synthesized amide-linked core-substituted perylene diimide derivative, which forms organogels in organic solvents.
Article
Chemistry, Multidisciplinary
Prajna Moharana, G. Santosh
Summary: This paper discusses the hierarchical self-assembly mechanism and properties of a newly synthesized core-substituted perylene diimide derivative-based organogel.
Article
Chemistry, Physical
Sanjukta Parida, Sanjib K. Patra, Sabyashachi Mishra
Summary: The pi-conjugated supramolecular polymers have gained popularity in materials chemistry and biomedicine due to their self-assembling behavior. This study provides a detailed account of the electronic structure and bonding through quantum theory and non-covalent interactions in oligomers of perylene, perylene diimide, and thionated-PDI. The analysis reveals the presence of electrostatic interactions playing a crucial role in the self-assembly process.
Article
Chemistry, Multidisciplinary
Qinglin Jiang, Jiang Zhang, Zhongquan Mao, Yao Yao, Duokai Zhao, Yanhua Jia, Dehua Hu, Yuguang Ma
Summary: This study successfully demonstrates room-temperature ferromagnetism in organic semiconductors with high Curie temperatures through the fabrication of PDI powders containing radical anion aggregates. The findings offer a new optional approach to create room-temperature magnetic semiconductors.
ADVANCED MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Yixuan Guo, Damien Boyer, Federico Cisnetti, Anthony Barros, Francois Reveret, Yongjun Feng, Genevieve Chadeyron, Fabrice Leroux
Summary: Perylene diimide-based dyes show high fluorescence quantum yield when co-hosted in a hybrid assembly, and saturated red emission when dispersed in silicone. When combined with a silicone film and a blue LED chip, it produces warm white light with high color rendering index.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Chemistry, Physical
Xiang Liu, Xiaoyan Ding, Shanna An, Xinyu Wang, Yanjun Xue, Xiaoli Zhang, Jian Tian
Summary: In this study, a novel organic semiconductor perylene tetracarboxylic diimide (PTCDI) modified g-C3N4 S-scheme heterostructure (PTCDI@g-C3N4) was successfully synthesized via thermal-etching and bath process. The obtained PTCDI@g-C3N4 demonstrated significantly improved photocatalytic nitrogen reduction rate compared to g-C3N4 nanosheets.
APPLIED SURFACE SCIENCE
(2023)
Article
Engineering, Environmental
Qiuyi Ji, Xinying Cheng, Dunyu Sun, Yijie Wu, Xiangcheng Kong, Huan He, Zhe Xu, Chenmin Xu, Chengdu Qi, Yazi Liu, Shiyin Li, Limin Zhang, Shaogui Yang, Cheng Sun
Summary: A photocatalytic coupling persulfate system was constructed for efficient degradation of Iohexol using a novel binary photocatalyst PB. The active species were identified as holes and hydroxyl radicals, with free radical chain reactions and mutual conversion reactions occurring during the degradation process. Metal-free supramolecular loaded photocatalysts show potential for application in the removal of organic pollutants for water remediation.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Lei Fang, Rong Huang, Wenqi Gong, Yuanhui Ji, Yanyan Sun, Shaohua Gou, Jian Zhao
Summary: This study proposes an effective approach to improve the electron transfer efficiency of Type-I photosensitizers by self-assembly-induced exciton delocalization. A proof of concept is demonstrated using a perylene diimide-based photosensitizer that can generate singlet oxygen in the monomeric state, but superoxide anion in the aggregated state. The addition of a specific substance can revert the aggregated state back to monomeric state, resulting in the recovery of singlet oxygen generation. The supramolecular nanoparticles derived from this photosensitizer show superior phototherapeutic performance against cancer through synergistic Type-I PDT and mild PTT.
Article
Chemistry, Physical
Daniel Aranda, Nathaniel J. Schuster, Xiao Xiao, Francisco J. Avila Ferrer, Fabrizio Santoro, Colin Nuckolls
Summary: It has been shown that NP3H exhibits an enhancement of the electronic circular dichroism response in the visible range, attributed to the increase in the magnetic transition dipole moments of the involved electronic states, mainly due to the presence of the double [6]helicene substructure within NP3H. This phenomenon is suggested to arise from an exciton-like coupling, not present in the analogue NPDH. Further computations and analysis support this mechanism, indicating the potential for the double [6]helicene unit to be a key core in designing new chiral conjugated materials with enhanced chiroptical properties in the visible range.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Biophysics
Steven E. Strong, Nicholas J. Hestand, Alexei A. Kananenka, Martin T. Zanni, J. L. Skinner
BIOPHYSICAL JOURNAL
(2020)
Article
Chemistry, Physical
Chuwei Zhong, David Bialas, Frank C. Spano
JOURNAL OF PHYSICAL CHEMISTRY C
(2020)
Article
Chemistry, Physical
Svenja M. Janke, Mohammad B. Qarai, Volker Blum, Frank C. Spano
JOURNAL OF CHEMICAL PHYSICS
(2020)
Article
Chemistry, Physical
Frank C. Spano
JOURNAL OF CHEMICAL PHYSICS
(2020)
Article
Chemistry, Multidisciplinary
George A. Sutherland, Daniel Polak, David J. K. Swainsbury, Shuangqing Wang, Frank C. Spano, Dirk B. Auman, David G. Bossanyi, James P. Pidgeon, Andrew Hitchcock, Andrew J. Musser, John E. Anthony, P. Leslie Dutton, Jenny Clark, C. Neil Hunter
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2020)
Review
Chemistry, Multidisciplinary
Raja Ghosh, Frank C. Spano
ACCOUNTS OF CHEMICAL RESEARCH
(2020)
Article
Chemistry, Physical
Steven E. Strong, Nicholas J. Hestand
JOURNAL OF CHEMICAL PHYSICS
(2020)
Article
Chemistry, Physical
Mohammad Balooch Qarai, Xin Chang, F. C. Spano
JOURNAL OF CHEMICAL PHYSICS
(2020)
Article
Chemistry, Physical
Xin Chang, Mohammad Balooch Qarai, Frank C. Spano
Summary: A vibronic exciton model was developed to explain the spectral signatures of HJ-aggregates in oligomers and polymers with donor-acceptor-donor repeat units. The model shows that single chains with enhanced intrachain order exhibit J-behavior, while positive H-promoting interchain Coulomb interactions in aggregates attenuate the vibronic ratio. The ratio formula derived previously for P3HT aggregates was shown to also apply to (DAD)(N) aggregates with slight modifications.
JOURNAL OF CHEMICAL PHYSICS
(2021)
Article
Chemistry, Physical
April L. Bialas, Frank C. Spano
Summary: Excimers are commonly found in many organic systems, with broad, structureless, and red-shifted emission. A theoretical model based on a Holstein-Peierls Hamiltonian is proposed to explain absorption and photoluminescence in molecular dimers, showing that excimer emission can be induced through local or nonlocal intermolecular coupling. Incorporating both types of coupling successfully reproduces absorption and excimer emission spectra.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Physical
Mohammad Balooch Qarai, Raja Ghosh, Frank C. Spano
Summary: The Holstein-based model has been expanded to include singlet bipolarons in conjugated polymers with nondegenerate ground states. The mid-IR band for bipolarons is red-shifted by up to 0.2 eV compared to single polarons, reflecting enhanced hole delocalization in the bound bipolaron complex. This observation is in good agreement with recent measurements on electrochemically doped P3HT.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Correction
Chemistry, Physical
Nicholas J. Hestand, Chenyu Zheng, Anirudh Raju Penmetcha, Brandon Cona, Jeremy A. Cody, Frank C. Spano, Christopher J. Collison
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Physical
Xin Chang, Mohammad Balooch Qarai, Frank C. Spano
Summary: A vibronic exciton model is used to describe low-energy electronic excitations in slip-stack aggregates. The study reveals that J- and H-aggregate behavior in these aggregates is driven by intermolecular charge transfer rather than Coulomb coupling as assumed in the Kasha model. Additionally, both J- and H-aggregates exhibit red-shifted behavior.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Correction
Chemistry, Physical
Xin Chang, Mohammad Balooch Qarai, Frank C. Spano
JOURNAL OF CHEMICAL PHYSICS
(2022)
Article
Chemistry, Physical
Mohammad Balooch Qarai, Raja Ghosh, Nicholas J. Hestand, Frank C. Spano
Summary: Theoretical investigation of multipolaron complexes in p-doped poly(3-hexylthiophene) films, where stationary dopant anions are positioned on both sides of the polymer chain within the lamellar region, was conducted. Complexes as large as tetrapolarons, consisting of four anions and an equal number of mobile holes, were considered. It was found that the mid-IR absorption band (P1) red-shifts and the hole ionization potential decreases as the complex grows in size, from a single polaron to a tetrapolaron. This behavior mainly arises from enhanced hole delocalization due to hole-hole repulsion and has significant implications for charge transport in organic materials.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)