Review
Optics
Yong Zhang
Summary: The translation is about the crystalline properties of organic-inorganic hybrid materials, classifying them into four levels based on their deviation from the strict definition of crystals. It discusses the different levels of crystallinity and defects in these materials, and provides a brief review on II-VI based hybrids, comparing them with their inorganic counterparts and other hybrids. The future studies of these hybrids are also mentioned.
JOURNAL OF LUMINESCENCE
(2022)
Article
Chemistry, Multidisciplinary
M. Prabodhi A. Nanayakkara, Lidija Matjacic, Sebastian Wood, Filipe Richheimer, Fernando A. Castro, Sandra Jenatsch, Simon Zufle, Rachel Kilbride, Andrew J. Parnell, Mateus G. Masteghin, Hashini M. Thirimanne, Andrew Nisbet, K. D. G. Imalka Jayawardena, S. Ravi P. Silva
Summary: Organic-inorganic hybrid semiconductor X-ray detectors with ultra-low dark currents, high sensitivity, and broadband X-ray response are suitable for medical and industrial applications due to excellent dose linearity, dose rate linearity, and reproducibility.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Tang Ye, Margaret Kocherga, Yi-Yang Sun, Andrei Nesmelov, Fan Zhang, Wanseok Oh, Xiao-Ying Huang, Jing Li, Damian Beasock, Daniel S. Jones, Thomas A. Schmedake, Yong Zhang
Summary: The study comprehensively analyzes the structural, electronic, optical, and transport properties of hybrid materials, demonstrating exceptionally high crystallinity and enhanced material properties, with some samples remaining stable and high-quality even after over 15 years. The findings indicate a potential nontraditional strategy for creating complex hybrid structures with high structural perfectness and long-term stability based on the calculated formation energy.
Article
Materials Science, Multidisciplinary
Young-Ji Lim, Seung-Hoon Lee, Jonghee Lee, Akpeko Gasonoo, Jae-Hyun Lee
Summary: Understanding heterojunctions in layered organic semiconductor devices is crucial for achieving efficient optoelectronic and advanced organic electronic devices. In this paper, the formation of charge transfer complexes (CTCs) at the interface of transition metal oxide (TMO)/organic semiconductor (OS) bilayers is investigated, as well as their effects on conductivity. The results show that CTC is formed at the interface of TMO/organic bilayers, leading to increased conductivity in the TMO. The absorbance intensities of the CTCs at the heterojunctions depend on the density of OS radicals formed from the charge transfer process. It is also observed that high CTC density at the bilayer interfaces results in low conductivity, as the CTCs act as hindrances to electron mobility.
ORGANIC ELECTRONICS
(2022)
Article
Chemistry, Inorganic & Nuclear
GuiQian Huang, HaiLun Zhou, ChengPeng Wang, Chiranjeevulu Kashi, XiaoLiang Ye, WenHua Li, Guan-E Wang, Gang Xu
Summary: The newly synthesized inorganic-organic hybrid material shows good stability and semiconductor behavior, with great potential for humidity sensing.
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
Review
Materials Science, Multidisciplinary
Siyu Liu, Ruiqian Guo, Fengxian Xie
Summary: The emergence of hybrid organic-inorganic perovskites (HOIPs) has made significant progress in the field of photovoltaics, and the modification of organic cations has been shown to improve the performance of HOIPs. This review summarizes the influences of organic cation rotation on the structure, optoelectrical properties, and stability of HOIPs, and provides theoretical insights into the effects of organic cations in experiments. Possible control methods and development directions are also proposed to better observe and utilize the rotation of organic cations in perovskite materials, solar cells, LEDs, photocatalysis, photothermal conversion, and other related fields.
MATERIALS & DESIGN
(2022)
Article
Chemistry, Multidisciplinary
Gwangmin Bae, Gwang-Mun Choi, Changui Ahn, Sang-Min Kim, Wonsik Kim, Youngjun Choi, Dawon Park, Dongchan Jang, Jung-Wuk Hong, Seung Min Han, Byeong-Soo Bae, Seokwoo Jeon
Summary: The new hybrid nanocomposite material combines organic-inorganic hybrid material with continuous and ordered 3D inorganic nanoshell as additional reinforcement, resulting in metal-like hardness, excellent impact resistance, good flexibility, and high transparency in the visible regions.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Inorganic & Nuclear
Zhuoer Cai, Xiu-Ni Hua, Yuanling Shao, Zining Wang, Xianmin Liu, Yinan Zhang, Xinyi Zhang, Shiyue Xiao, Baiwang Sun
Summary: A new organic-inorganic hybrid material, TEACCl & BULL;FeCl4 (1, TEACCl+ = Et3NCH2Cl+), with a phase change at 264.3 K was synthesized and characterized. The reversible phase change near 264.3 K was confirmed by differential scanning calorimetry, single crystal structure determination, and dielectric measurement. The enthalpy change of phase transition indicates that 1 can be used as a heat storage material.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Nanoscience & Nanotechnology
Yaakov Tuchman, Tyler J. Quill, Garrett LeCroy, Alberto Salleo
Summary: Organic semiconductors are being used in neuromorphic computing applications, with the development of vertical, three-terminal electrochemical random-access memories (ECRAMs) being a key advancement. These stacked hybrid organic/inorganic ECRAMs (SHOEs) demonstrate superior performance compared to lateral devices, with features such as high dynamic range, exceptional cycling endurance, low energy switching, and high operational speeds. The fabrication process allows for independent control over device dimensions, and the hybrid electrolyte design has broader applications beyond ECRAMs.
ADVANCED ELECTRONIC MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Gabriel J. Man, Cody M. Sterling, Chinnathambi Kamal, Konstantin A. Simonov, Sebastian Svanstrom, Joydev Acharya, Fredrik O. L. Johansson, Erika Giangrisostomi, Ruslan Ovsyannikov, Thomas Huthwelker, Sergei M. Butorin, Pabitra K. Nayak, Michael Odelius, Hakan Rensmo
Summary: Evidence for electronic coupling in the unoccupied states between the organic and inorganic sublattices of hybrid perovskite was found through organic-selective resonant Auger electron spectroscopy measurements. This coupling is relevant for electron dynamics in the material and for understanding optoelectronic functionality.
Article
Chemistry, Multidisciplinary
Haibo Li, Yi Lv, Zhennan Zhou, Hua Tong, Wei Liu, Gangfeng Ouyang
Summary: The study demonstrates a novel and facile strategy for designing and synthesizing highly luminescent copper halide hybrid structures by fabricating coordinated anionic inorganic modules in ionic species. These structures exhibit high internal quantum yields up to 98% and combine luminescence from ionic and covalent bonds, making them ideal candidates for light-emitting materials in optoelectronic devices as alternative to rare-earth elements.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Materials Science, Multidisciplinary
Seung-Hwan Lee, Hyun-Jun Jeong, Ki-Lim Han, GeonHo Baek, Jin-Seong Park
Summary: Indium oxide and indicone hybrid thin films were successfully grown using molecular layer deposition (MLD) and supercycles, demonstrating adjustable optical, structural, and electrical properties. The hybrid film with a 99:1 cycle ratio of indium oxide : indicone showed promising TFT parameters and excellent mechanical properties, suggesting potential applications in next-generation premium electronic devices.
JOURNAL OF MATERIALS CHEMISTRY C
(2021)
Article
Nanoscience & Nanotechnology
Tianyu Tang, Jakob Zessin, Felix Talnack, Katherina Haase, Katrin Ortstein, Baiqiang Li, Markus Loeftler, Bernd Rellinghaus, Mike Hambsch, Stefan C. B. Mannsfeld
Summary: This study reports the improvement of electronic properties of solution-processed indium oxide films by adding an organic p-type semiconductor material, resulting in organic-inorganic hybrid TFTs. The addition of TIPS-pentacene enhances electron mobility, improves electronic stability, and reduces the number of required spin-coating steps. The hybrid TFTs exhibit either enhancement- or depletion-mode behavior depending on the fabrication process, showing potential for the construction of organic-inorganic hybrid electronics and circuits.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Min-Chuan Shih, Hung-Chang Hsu, Cheng-Chieh Lin, Shao-Ku Huang, Tzu-Pei Chen, Yung-Han Tsai, Chia-Chun Chen, Ya-Ping Chiu, Chun-Wei Chen
Summary: This study demonstrates the direct visualization of atomically resolved quantum-confined electronic structures at organic-inorganic interfaces of 2D RPPs using STM and STS techniques. The presence of quantum-well-like type-I heterojunction band alignment and edge states due to organic cation vacancies are observed at these interfaces. Real-space visualization of atomic-scale structural phase transition behavior and changes in local electronic band structures are obtained simultaneously.
Article
Chemistry, Multidisciplinary
Z. Yu, H. Peng, Q. Wei, T. Huang, S. Yao, Y. Tian, C. Peng, B. Zou
Summary: Recently, the optical properties of organic-inorganic hybrid metal halides have attracted attention in the optoelectronic field. In this study, a series of organic-inorganic hybrid metal halides with ferroelectric properties were developed using a simple mechanochemical method. The emission profiles of the metal halides were tunable with different manganese concentrations. The doped samples exhibited diluted magnetic semiconductor behavior and varied emission profiles, which could be modified by heat treatment. The results suggest potential applications of Mn-doped metal halides in solid displays, lighting, and magneto-optical devices.
MATERIALS TODAY CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Yoshiaki Shoji, Naoki Tanaka, Yasuhiro Ikabata, Hayato Sakai, Taku Hasobe, Norbert Koch, Hiromi Nakai, Takanori Fukushima
Summary: The successful synthesis of tetramesityldiborane(4) (Mes(4)B(2)) with exceptional chemical stability and dual fluorescence properties was reported. The compound is sensitive to the viscosity of the medium, making it a potential ratiometric viscosity sensor.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Physical
Ahmed E. Mansour, Ana M. Valencia, Dominique Lungwitz, Berthold Wegner, Naoki Tanaka, Yoshiaki Shoji, Takanori Fukushima, Andreas Opitz, Caterina Cocchi, Norbert Koch
Summary: This study investigates the formation of charge carriers in molecularly doped P3HT polymers using Raman spectroscopy and first-principles calculations. The presence of polarons and bipolarons are observed with increasing dopant concentration. By tracking the changes in Raman spectra, the origin of bipolarons and additional vibrations associated with them are identified.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Chemistry, Physical
Jonathan Warby, Fengshuo Zu, Stefan Zeiske, Emilio Gutierrez-Partida, Lennart Frohloff, Simon Kahmann, Kyle Frohna, Edoardo Mosconi, Eros Radicchi, Felix Lang, Sahil Shah, Francisco Pena-Camargo, Hannes Hempel, Thomas Unold, Norbert Koch, Ardalan Armin, Filippo De Angelis, Samuel D. Stranks, Dieter Neher, Martin Stolterfoht
Summary: Perovskite semiconductors are an attractive option in photovoltaic technology due to their exceptional properties. However, the nonradiative recombination at the perovskite/organic electron transport layer junctions limits the performance of single- and multijunction cells. This study reveals that the most significant contribution to the recombination loss occurs within the first monolayer of C-60 at the perovskite/C-60 interface. By reducing the surface coverage of C-60, the radiative efficiency of the bare perovskite layer can be maintained. These findings pave the way for improving the performance of perovskite solar cells.
ADVANCED ENERGY MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Dongguen Shin, Fengshuo Zu, Edgar R. Nandayapa, Lennart Frohloff, Emily Albert, Emil J. W. List-Kratochvil, Norbert Koch
Summary: In this study, it is revealed that a straddling type-I energy level alignment is present at the 2D PEA(2)PbI(4)/3D MAPbI(3) interfaces, explaining the enhanced photoluminescence of the 3D perovskite induced by energy transfer from the 2D perovskite. These results provide a fundamental understanding of the electronic properties at the investigated 2D/3D MHP interfaces and suggest reconsideration of the electronic properties of other 2D/3D MHP heterostructures.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Dominique Lungwitz, Ahmed E. Mansour, Yadong Zhang, Andreas Opitz, Stephen Barlow, Seth R. Marder, Norbert Koch
Summary: The ability to form multi-heterolayer (opto)electronic devices by solution processing of semiconducting polymer layers is of great interest, but it poses challenges for multilayer deposition. Two mechanisms, including doping-induced pre-aggregation and the use of a photo-reactive agent, are found to enhance the solvent resistance of solution-processed doped polymer layers while retaining the dopants. For molecularly doped poly(3-hexylthiophene-2,5-diyl) and poly[2,5-bis(3-tetradecyl-thiophene-2-yl)thieno(3,2-b)thiophene] layers, pre-aggregation plays a major role in enhancing solvent resistance, but limits the use of a cross-linking agent. However, by suppressing pre-aggregation, high resistance to solvent and retained electrical conductivity can be achieved using a tris(azide) cross-linking agent.
CHEMISTRY OF MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Lennart Frohloff, Fengshuo Zu, Dongguen Shin, Norbert Koch
Summary: One promising approach for fabricating high-performance solar cells is to combine metal halide perovskites with organic semiconductors. Proper energy level alignment at device interfaces is crucial for achieving high device performance. In this study, we investigate the interface between a triple cation perovskite and an electron acceptor molecule and find that charge transfer induces a band bending effect, altering the charge extraction barriers. Additionally, we observe reversible shifts in the energy levels of the organic layer under white light illumination, indicating an electrostatic origin of this phenomenon.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2023)
Article
Physics, Applied
Ross Warren, Paul W. M. Blom, Norbert Koch
Summary: This study measures the dielectric constant in thin films of regioregular poly(3-hexylthiophen-2,5-diyl) (P3HT) using impedance spectroscopy. The results show that molecular doping has a considerable impact on the dielectric constant.
APPLIED PHYSICS LETTERS
(2023)
Article
Chemistry, Physical
Meysam Raoufi, Sreelakshmi Chandrabose, Rongbin Wang, Bowen Sun, Nicolas Zorn Morales, Safa Shoaee, Sylke Blumstengel, Norbert Koch, Emil List-Kratochvil, Dieter Neher
Summary: Monolayer transition-metal dichalcogenides (TMDCs) combined with organic semiconductors form heterostructures with tunable optoelectronic properties. The efficiency and lifetime of photoinduced charge transfer can be controlled by tuning the energy level offset. Direct electron-hole recombination across the hybrid interface is not the main decay pathway for photogenerated carriers, instead, holes are suggested to transfer back to the TMDC layer. Adding a 1 nm LiF interlayer can slow down interfacial carrier recombination without suppressing free carrier formation.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Materials Science, Multidisciplinary
Jie Ma, Patrick Amsalem, Thorsten Schultz, Xiaomin Xu, Norbert Koch
Summary: Combining transition metal dichalcogenides (TMDCs) with molecular semiconductors allows for the formation of van der Waals heterostructures with unique optoelectronic properties. A strong p-type molecular dopant, F(6)TCNNQ, is used to create a van der Waals interface with a WS2 monolayer, resulting in no strong interaction or charge transfer. However, the presence of defects in the WS2 monolayer induces strong n-type doping and leads to pronounced charge transfer upon F(6)TCNNQ adsorption.
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Thorsten Schultz, Peer Baermann, Elena Longhi, Rahul Meena, Yves Geerts, Yury Gogotsi, Stephen Barlow, Seth R. Marder, Tristan Petit, Norbert Koch
Summary: Two-dimensional MXenes, especially Ti(3)C(2)Tx, have promising properties for various applications. The work function of MXenes is crucial for energy level alignment, and methods to control the work function should be developed.
PHYSICAL REVIEW MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Ahmed E. Mansour, Ross Warren, Dominique Lungwitz, Michael Forster, Ullrich Scherf, Andreas Opitz, Moritz Malischewski, Norbert Koch
Summary: This study presents a simple method to enhance the oxidation strength of molecular dopants for organic semiconductors, while reducing diffusion in polymer hosts. Experimental results demonstrate higher efficiency of the new dopant complex compared to traditional molecular dopants.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Materials Science, Coatings & Films
Jeong Won Kim, Ansoon Kim, Hui Ung Hwang, Jun Hyung Kim, Seungwook Choi, Norbert Koch, Dongguen Shin, Zhijuan Zhao, Fen Liu, Minki Choi, Kyu Myung Lee, Yongsup Park
Summary: In this study, the results of an interlaboratory research on work function (WF) measurements by ultraviolet photoelectron spectroscopy (UPS) were presented. Two samples, gold (Au) film and highly oriented pyrolytic graphite (HOPG), were distributed to six different laboratories. The consistent results obtained from different laboratories demonstrate the basis for establishing a new international standard for UPS in the surface chemical analysis community.
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A
(2023)
Article
Materials Science, Multidisciplinary
Johannes Mueller, Max Heyl, Thorsten Schultz, Kristiane Elsner, Marcel Schloz, Steffen Ruehl, Helene Seiler, Norbert Koch, Emil J. W. List-Kratochvil, Christoph T. Koch
Summary: 4D scanning transmission electron microscopy (4D-STEM) is a powerful technique that can characterize electron-transparent samples with high spatial resolution. By rastering an electron beam over a sample area and acquiring transmission diffraction patterns, 4D-STEM can provide detailed information about the atomic structure, crystallinity, orientation, and other properties of the sample. It can be used in scanning electron microscopes (SEMs) to study 2D materials and vdWH, with their inherently thin thickness. A unique 4D-STEM-in-SEM system is applied to reveal the single crystallinity of MoS2 exfoliated with gold-mediation and determine the crystal orientation and coverage of both components in a C60/MoS2 vdWH.
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Sarah Gruetzmacher, Max Heyl, Marco Vittorio Nardi, Norbert Koch, Emil J. W. List-Kratochvil, Giovanni Ligorio
Summary: 2D transition metal dichalcogenides (TMDCs) are semiconductors with potential for optoelectronic applications, and their properties can be altered by chemically engineering the substrate surface. This study demonstrates local doping and adjustment of the electronic and optical properties of TMDCs (WSe2 and MoS2) by decorating the substrate with self-assembled monolayers (SAMs) with different molecular dipoles and dielectric constants. The interaction between SAMs and TMDCs leads to changes in the electronic band gap width, which can be predicted using the Schottky-Mott rule and knowledge of the dielectric screening effects. Understanding these effects allows for accurate prediction of TMDCs behavior for device design.
ADVANCED MATERIALS INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Fengshuo Zu, Dongguen Shin, Emilio Gutierrez-Partida, Martin Stolterfoht, Patrick Amsalem, Norbert Koch
Summary: The electronic properties of metal halide perovskites (MHPs) are crucial for optimal optoelectronic devices, but photoelectron spectroscopy (PES) measurements can be complex due to charge selective junctions and high-energy photons causing energy level realignment. Bremsstrahlung from twin-anode lab-sources can induce sizable shifts in core levels, whereas monochromatized X-ray lab-sources have minimal effects. These findings aim to enhance the reliability of PES measurements for obtaining accurate MHP electronic property information.
ADVANCED MATERIALS INTERFACES
(2023)
