Article
Chemistry, Multidisciplinary
Chia-Chi Lin, Shakil N. Afraj, Arulmozhi Velusamy, Po-Chun Yu, Chang-Hui Cho, Jianhua Chen, Yi-Hsien Li, Gene-Hsiang Lee, Shih-Huang Tung, Cheng-Liang Liu, Ming-Chou Chen, Antonio Facchetti
Summary: A small molecular semiconductor based on 3,5-dithiooctyl dithienothiophene was synthesized and characterized for organic field effect transistors, showing a high hole mobility. Adding 1 into the blend can improve device performance, forming a nanoscopic vertical phase separation morphology.
Article
Materials Science, Multidisciplinary
Hye Ryun Sim, Mingyun Kang, Seong Hoon Yu, Geon-Hee Nam, Bogyu Lim, Dae Sung Chung
Summary: The PM-OPDs rely on a newly designed non-fullerene acceptor, TV-ITIC, to improve performance, leading to enhanced external quantum efficiency and specific detectivity.
ADVANCED OPTICAL MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Fu Liu, Zhou Xing, Ya Ren, Rong-Jiao Huang, Piao-Yang Xu, Fang-Fang Xie, Shu-Hui Li, Xinxian Zhong
Summary: In this study, three functionalized fulleropyrrolidine ETMs were designed and synthesized, with CECB based on the same primary terminal and different secondary terminals, showing a PSC with a power conversion efficiency of over 19% and exceptional photo-stability over 1800 hours. This research provides valuable insights into the targeted terminal design of novel fullerene ETMs for efficient and stable PSCs.
Article
Chemistry, Applied
Ning Su, Jianhua Chen, Mengran Peng, Guoping Li, Robert M. Pankow, Ding Zheng, Junqiao Ding, Antonio Facchetti, Tobin J. Marks
Summary: In this study, three novel small molecule acceptors were developed, which showed good solubilities in non-chlorinated organic solvents, broad optical absorptions, close molecular stacking distances, and high electron mobilities. The solar cells fabricated using these acceptors achieved high power conversion efficiencies without halogenated solvents or additives.
JOURNAL OF ENERGY CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Sangjun Lee, Gyeong Seok Lee, Mingyun Kang, Yeon Hee Ha, Yun-Hi Kim, Dae Sung Chung
Summary: The performance and operational stability of an all-polymer photomultiplication-type organic photodiode can be enhanced by achieving near-ideal spatial isolation of the polymer acceptor. The use of a new synthetic approach leads to the synthesis of polymer acceptors with different degrees of backbone planarity. The resulting photodiode exhibits high external quantum efficiency and improved operational stability.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Yi-Jia Su, Hebing Nie, Chun-Feng Chang, Sheng-Ci Huang, Yi-Hsuan Huang, Tsung-Wei Chen, Kuo-Kai Hsu, Tzu-Yuan Lee, Hung-Min Shih, Chung-Wen Ko, Jiun-Tai Chen, Chain-Shu Hsu
Summary: Two asymmetric non-fullerene acceptors, BTP-EHBO-4F and BTP-PHD-4F, were designed and applied in green-solvent-processable organic photovoltaics (OPVs), demonstrating outstanding performance with o-xylene as the solvent. The devices based on these acceptors showed high power conversion efficiencies and excellent solubility compared to devices using Y6 as the acceptor. This was attributed to favorable phase separation, molecule packing, and orientation observed from AFM and GIWAXS measurements.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Review
Polymer Science
Dhananjaya Patra, Sungjune Park
Summary: This review provides an overview of the recent developments in benzotrithiophene-based monomers, polymers, and small molecules as well as their applications in energy harvesting and electronic devices. The review also covers recent advances in charge transport devices such as organic solar cells, organic thin-film field-effect transistors, and perovskite solar cells.
MACROMOLECULAR RAPID COMMUNICATIONS
(2022)
Article
Nanoscience & Nanotechnology
Seong-Wook Kim, Sein Chung, Gao-Feng Han, Jeong-Min Seo, Hyuk-Jun Noh, Seok-Jin Kim, Jong-Pil Jeon, Eunho Lee, Boseok Kang, Javeed Mahmood, Kilwon Cho, Jong-Beom Baek
Summary: After the emergence of graphene, the development of semiconducting organic materials with layered structures has become active in the material science field. However, these materials often face poor processability issues. In this study, a new approach is proposed to avoid the processability issue by designing a soluble amorphous network and using heat treatment to develop a flattened organic structure for organic thin-film transistors (TFTs). The fabricated TFTs exhibit good performance in both horizontal and vertical charge transport, suggesting the versatility and usefulness of this approach for the development of organic semiconductors.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Xiaojuan Shen, Xinyue Wei, Tongfei Wang, Sumin Li, Haitao Li
Summary: This study presents the fabrication of a composite material of polymer and metal oxide for Si-based supercapacitors. The composite exhibited high specific capacitance and good conductivity. Additionally, the synthesized device showed good stability and capacitance retention during cyclic testing.
MATERIALS CHEMISTRY FRONTIERS
(2022)
Article
Materials Science, Multidisciplinary
Sungmi Yoo, Dong-Gyun Kim, Hyunjin Park, Jinha Ha, Jinsoo Kim, Jong Chan Won, Yun Ho Kim
Summary: A solution-processable and photocurable polyurea (PU) with excellent electrical and dielectric properties is synthesized and applied as a gate dielectric in high-performance organic thin-film transistors (OTFTs). The photo-crosslinked PU film improves dielectric properties and thermal and chemical resistance compared with pristine PU films. The performance of the c-PU thin film as a gate dielectric is demonstrated in DNTT-based and diketopyrrolopyrrole-thienothiophene copolymer-based OTFTs.
MATERIALS RESEARCH BULLETIN
(2023)
Article
Chemistry, Applied
Xiaohui Yu, Songtao Ling, Xueqing Li, Tongtong Ye, Yang Li, Jinchong Xiao
Summary: By synthesizing and fully characterizing two novel small donor-pi-acceptor derivatives, it was found that the device based on 5 exhibited wider memory windows, higher ON/OFF ratio, and excellent bipolar resistive switching behavior compared to the device based on 3.
Article
Energy & Fuels
Yaily Fernandez-Arteaga, Jose-Luis Maldonado, Juan Nicasio-Collazo, Marco-Antonio Meneses-Nava, Mario Rodriguez, Oracio Barbosa-Garcia, Uriel Sierra, Salvador Fernandez, Bernardo Antonio Frontana-Uribe
Summary: A novel bilayer anode material composed of a graphene derivative and PH1000 polymer is proposed as a sustainable alternative to ITO in the manufacture of organic solar cells. The new material exhibits good performance characteristics such as low cost and ease of processing, showing potential for replacing ITO as an anode material.
Article
Chemistry, Multidisciplinary
Ziping Zhong, Xin Liu, Ling Li, Zeyao Han, Yin He, Xiaobao Xu, Jiefeng Hai, Rihong Zhu, Jiangsheng Yu
Summary: Narrow bandgap non-fullerene acceptors (NFAs) are key materials for NIR organic solar cells and photodiodes due to their complementary absorption and tunable energy levels. In this study, an asymmetric A-D-pi-A type NFA, ABTPV-S, with broad optical absorption approaching 1,000 nm, is designed and synthesized. The optimized OPD device based on ABTPV-S exhibits excellent performance, including high photoresponsivity, low noise current, and a wide linear dynamic range. These findings demonstrate the potential of A-D-pi-A type NIR NFAs for high-performance OPDs.
SCIENCE CHINA-CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Neelam Gupta, Mangey Ram Nagar, Biswajit Anamika, Prakalp Gautam, Biswajit Maiti, Jwo-Huei Jou, Biplab Kumar Kuila
Summary: The development of solution-processable blue electroluminescence materials for OLED applications has attracted significant research interest. However, the lack of side chains or functional groups on the backbones of framework/network materials makes them generally insoluble and less solution-processable for electronic device applications. In this study, two triazine-based donor-acceptor conjugated polymer networks (CPNs) with highly fluorescent and wide band gaps were reported, and side chains were introduced to improve their solution-processability. The physicochemical and optoelectronic properties of these emitters were characterized, and the OLEDs based on these CPNs showed promising performance for blue emission, indicating the high potential of conjugated polymer network emitters for future OLED applications.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Hongye Yuan, Guoliang Liu, Zhiwei Qiao, Nanxi Li, Pio John S. Buenconsejo, Shibo Xi, Avishek Karmakar, Mengsha Li, Hong Cai, Stephen John Pennycook, Dan Zhao
Summary: This study presents a simple and surfactant-free method for synthesizing highly stable MOF suspensions composed of exceptionally large NUS-8 nanosheets, demonstrating excellent solution processability. The resulting NUS-8 nanosheets can be used to fabricate materials with controllable thickness and good mechanical properties, and capacitive sensors integrated with NUS-8 films functionalized with different terminal groups exhibit distinguishable sensing behaviors toward acetone.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Physical
Gopa Sardar, Atul Shukla, Evan G. Moore, Gangadhar Banappanavar, Shih-Chun Lo, Ebinazar B. Namdas, Dinesh Kabra
Summary: An aryl-polyfluorene polymer with high photoluminescence quantum yield and reduced excimer emission in its neat film is found to be suitable for laser applications. The low excitation energy and ASE threshold can be achieved by adjusting the aryl groups on the polymer chain.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Nanoscience & Nanotechnology
Hui Li, Abdulaziz S. R. Bati, Ronan Chu, Guanran Zhang, Yanyan Li, Qianqian Lin, Paul L. Burn, Paul E. Shaw, Ian R. Gentle
Summary: This study demonstrates that the electronic properties of inorganic nickel oxide films can be modified by fluorination, resulting in reduced surface defects and improved performance and stability of perovskite solar cells.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Can Gao, Atul Shukla, Haikuo Gao, Zhagen Miao, Yihan Zhang, Pu Wang, Guiwen Luo, Yi Zeng, Wallace W. H. Wong, Trevor A. Smith, Shih-Chun Lo, Wenping Hu, Ebinazar B. Namdas, Huanli Dong
Summary: Organic light-emitting transistors (OLETs) have demonstrated great potential applications in various fields as highly integrated and minimized optoelectronic devices. However, the construction of high-performance OLETs remains a significant long-term challenge, especially for single component active layer OLETs. In this study, the successful harvesting of triplet excitons in a high mobility emissive molecule, 2,6-diphenylanthracene (DPA), through the triplet-triplet annihilation process is demonstrated.
ADVANCED MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Lauren R. Miller, Robert J. Borthwick, Paloma L. dos Santos, Mujeeb U. Chaudhry
Summary: Abnormal concentrations of VOCs in human breath can serve as disease-specific biomarkers for non-invasive medical diagnosis. A proof-of-concept study used solution-processed metal oxide TFTs to detect acetone vapours as a biomarker for diabetes. Increasing annealing temperature and channel length were found to enhance the electrical and sensing performance of the TFTs.
Article
Nanoscience & Nanotechnology
Sidney A. Howell, Manikandan Koodalingam, Junhyuk Jang, Chandana Sampath Kumara Ranasinghe, Mile Gao, Ronan Chu, Mohammad Babazadeh, David M. Huang, Paul L. Burn, Paul E. Shaw, Emma V. Puttock
Summary: The authors synthesized a family of first-generation dendrimers with 3,5-bis(carbazolyl)-phenyl dendrons attached to a green emissive fac-tris(2-phenylpyridyl)iridium(III) core. The dendrimers' solubility was increased by adding tert-butyl surface groups to the carbazole moieties. The density of the films containing doubly dendronized materials was higher than those containing mono-dendronized counterparts, with the highest density at 1.12 +/- 0.04 g cm-3 for the dendrimer with two rotationally constrained dendrons per ligand. The dendrimers also showed high photoluminescence quantum yields (PLQYs) in solution and were incorporated into solution-processed OLEDs with high external quantum efficiencies.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Kinitra L. Hutchinson, Beta Z. Poliquit, Andrew J. Clulow, Paul L. Burn, Ian R. Gentle, Paul E. Shaw
Summary: Thin films of two poly(dendrimer)s were studied for the detection of trace quantities of nitrobased taggants and explosives. The addition of first-generation biphenyl-based dendrons to one of the polymers resulted in greater sensitivity and recovery to nitroaliphatic and nitroaromatic analytes compared with the other polymer. Neutron reflectometry was employed to characterize the vapor uptake of the polymers and a structurally similar dendrimer. The results demonstrated the importance of increasing the dendritic character in optimizing vapor uptake and improving sensing performance.
AUSTRALIAN JOURNAL OF CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Calvin J. Lee, Ashish Sharma, Naitik A. Panjwani, Isaac M. Etchells, Elham M. Gholizadeh, Jonathan M. White, Paul E. Shaw, Paul. L. Burn, Jan Behrends, Akshay Rao, David Jones
Summary: Singlet fission (SF) is a potential avenue for enhancing silicon photovoltaic performance. This study describes a molecular engineering approach to increase the energy of diketopyrrolopyrrole derivatives, enabling energy-level requirements for exothermic SF and energy transfer to silicon. The results reveal promising silicon-matched SF materials that could facilitate efficient solar harvesting and energy transfer to silicon photovoltaic cells.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Prabal Dweep Khanikar, Sheetal Dewan, John Wellington John, Atul Shukla, Pritam Das, Sajal Dhara, Supravat Karak, Shih-Chun Lo, Ebinazar B. Namdas, Samaresh Das
Summary: This article reports a high-performance inorganic-organic hybrid photodetector based on a heterojunction structure, which has high-speed photoresponse and high responsivity for broadband detection. The study finds that long-range energy transfer from the polymer material P3HT to the two-dimensional material WSe2 can enhance the efficiency of exciton collection. The photodetector exhibits wideband light detection from visible to near-infrared light and maintains air-stable performance. Additionally, the device demonstrates fast photoresponse speed and long-term stability.
ADVANCED ELECTRONIC MATERIALS
(2023)
Article
Chemistry, Physical
M. Chen, P. L. Burn, P. E. Shaw
Summary: Luminescence-based sensing enables sensitive and rapid detection of chemicals, and can be incorporated into portable detectors. While commercially available for explosive detection, there are fewer examples of luminescence-based detection of illicit drugs, requiring further research, particularly in thin film detection.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Review
Materials Science, Multidisciplinary
Abdulaziz S. R. Bati, Yu Lin Zhong, Paul L. Burn, Mohammad Khaja Nazeeruddin, Paul E. Shaw, Munkhbayar Batmunkh
Summary: Organic/inorganic metal halide perovskites have attracted significant attention as key materials for next-generation photovoltaic technologies due to their low cost, high performance, and solution processability. This review outlines notable achievements in photovoltaic-integrated technologies, including tandem solar cells, building-integrated photovoltaics, space applications, energy storage system integration with batteries and supercapacitors, and photovoltaic-driven catalysis. It also discusses the outstanding challenges and future perspectives for the development of these fields and potential next-generation applications.
COMMUNICATIONS MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Ming Chen, Ronan Chu, Jos C. M. Kistemaker, Paul L. Burn, Ian R. Gentle, Paul E. Shaw
Summary: Luminescence-based sensing is an effective method for rapid detection of chemical vapors. Photoinduced electron transfer is used for detecting explosive analytes, while photoinduced hole transfer is used for detecting low electron affinity analytes such as illicit drugs. Semicrystalline sensing films can achieve high sensitivity in detecting these analytes.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Materials Science, Multidisciplinary
Neil Mallo, Shaun McAnally, Ronan Chu, Mohammad Babazadeh, Hui Jin, Paul L. Burn, Ian R. Gentle, Paul E. Shaw
Summary: Bulk heterojunction organic solar cells have made significant progress in power conversion efficiency and stability. Fluorination of non-polymeric donor-acceptor-acceptor-donor organic semiconductors can improve thin film density and electron transport while decreasing the optical frequency dielectric constant.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Chemistry, Physical
Abdulaziz S. R. Bati, Purevlkham Myagmarsereejid, Marco Fronzi, Kaicai Fan, Porun Liu, Yu Lin Zhong, Paul L. Burn, Ian R. Gentle, Paul E. Shaw, Munkhbayar Batmunkh
Summary: This article reports a simple solution-based method for the preparation of single-atom nickel-doped BP nanosheets and their application in perovskite solar cells, which leads to improved performance. Perovskite films prepared with the Ni-BP passivation layer have reduced defect densities and improved charge-transfer properties.
Article
Materials Science, Multidisciplinary
Neil Mallo, Shaun McAnally, Ronan Chu, Mohammad Babazadeh, Hui Jin, Paul L. Burn, Ian R. Gentle, Paul E. Shaw
Summary: Research on organic solar cells shows that fluorination can be used to control the low and optical frequency dielectric constants of materials, thereby improving the density of thin films and the transport properties of electrons and holes.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
