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Publications

Labardi, M., Tripathi, P., Capaccioli, S., Casalini, R.,
Local dielectric spectroscopy (LDS) is a scanning probe method, based on dynamic-mode atomic force microscopy (AFM), to discriminate dielectric properties at surfaces with nanometer-scale lateral resolution. Until now a sub-10 nm resolution for LDS has not been documented, that would give access to the length...
Xu, C., Zhao, Z., Yang, K., Niu, L., Ma, X., Zhou, Z., Zhang, X., Zhang, F.,
Solution-processed organic photovoltaics (OPVs) have the superiorities of light weight, low cost, easy fabrication, high mechanical flexibility and good semitransparency, enabling the great potential in next-generation photovoltaic technology. All-small-molecule OPVs (SMPVs) have great potential in commercial application thanks to the unique merits of small molecule...
Chen, Z., Zhu, H.,
Nonfullerene acceptors (NFAs) are regarded as star candidates for efficient organic solar cells with power conversion efficiency (PCE) over 18%. In contrast to the rapid development of NFA materials, however, the underlying excited-state dynamics which fundamentally govern the device performance remains unclear. In this Perspective,...
Divya, ., Dkhar, D., Kumari, R., Mahapatra, S., Kumar, R., Chandra, P.,
Viral infections are becoming the foremost driver of morbidity, mortality and economic loss all around the world. Treatment for diseases associated to some deadly viruses are challenging tasks, due to lack of infrastructure, finance and availability of rapid, accurate and easy-to-use detection methods or devices....
Su, Z., Li, T., Wu, D., Wu, Y., Li, G.,
Rapid and sensitive detection technologies for food contaminants play vital roles in food safety. Due to the complexity of the food matrix and the trace amount distribution, traditional methods often suffer from unsatisfying accuracy, sensitivity, or specificity. In past decades, single-molecule detection (SMD) has emerged...
Di Wang, Guanqing Zhou, Yuhao Li, Kangrong Yan, Lingling Zhan, Haiming Zhu, Xinhui Lu, Hongzheng Chen, and Chang-Zhi Li
High-performance organic solar cells (OSCs) at the current stage are majorly accomplished from the processing of halogenated solvents, such as chloroform, which will be constrained for upscale fabrication due to the adverse health and environmental impacts. Therefore, exploring the high-performance OSCs from non-halogenated solvent processing...
Jariwala, S., Kumar, R., Eperon, G., Shi, Y., Fenning, D., Ginger, D.,
Adding a large A-site cation, such as dimethylammonium (DMA), to the perovskite growth solution has been shown to improve the performance and long-term operational stability of halide perovskite solar cells. To better understand the origins of these improvements, we explore the changes in film structure,...
Wu, R., Matta, M., Paulsen, BD., Rivnay, J.,
Operando characterization plays an important role in revealing the structure-property relationships of organic mixed ionic/electronic conductors (OMIECs), enabling the direct observation of dynamic changes during device operation and thus guiding the development of new materials. This review focuses on the application of different operando characterization...
Es, M., Tamer, M., Bloem, R., Fillinger, L., Zeijl, E., Maturová, K., Donck, J., Willekers, R., Maas, D.,
Patterning photoresist with extreme control over dose and placement is the first crucial step in semiconductor manufacturing. But, how to accurately measure the activation of modern complex resists components at sufficient spatial resolution? No exposed nanometre-scale resist pattern is sufficiently sturdy to unaltered withstand inspection...
Menabde, S., Heiden, J., Cox, J., Mortensen, N., Jang, M.,
Polaritonic modes in low-dimensional materials enable strong light-matter interactions and the manipulation of light on nanometer length scales. Very recently, a new class of polaritons has attracted considerable interest in nanophotonics: image polaritons in van der Waals crystals, manifesting when a polaritonic material is in...
Yu, T., He, W., Jafari, M., Guner, T., Li, P., Siaj, M., Izquierdo, R., Sun, B., Welch, GC., Yurtsever, A., Ma, D.,
It is highly desired to develop advanced characterization techniques to explore the 3D nanoscale morphology of the complicated blend film of ternary organic solar cells (OSCs). Here, ternary OSCs are constructed by incorporating the nonfullerene acceptor perylenediimide (PDI)-diketopyrrolopyrrole (DPP)-PDI and their morphology is characterized in...
Abrego-Martinez, JC., Jafari, M., Chergui, S., Pavel, C., Che, D., Siaj, M.,
Rapid, mass diagnosis of the coronavirus disease 2019 (COVID-19) is critical to stop the ongoing infection spread. The two standard screening methods to confirm the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) are polymerase chain reaction (PCR), through the RNA of the virus, and serology...
Wang, H., Xie, Q., Xu, XG.,
Small biomolecules at the subcellular level are building blocks for the manifestation of complex biological activities. However, non-intrusive in situ investigation of biological systems has been long daunted by the low spatial resolution and poor sensitivity of conventional light microscopies. Traditional infrared (IR) spectro-microscopy can...
Eesaee, M., Müller, A.J., O’Reilly, P., Prud’homme, R.E., Nguyen-Tri, P.
Poly(ε-caprolactone) (PCL) was blended with l-ascorbic acid (AA) to achieve increased hydrophilicity and shorter degradation period as a candidate for specific biomedical applications such as bio tissue engineering scaffolds. The miscibility, morphology, and spherulite development of PCL/AA blends were investigated via several means of microscopy....
Weckhuysen, B., Have, I., Meirer, F., Oord, R., Zettler, E., Sebille, E., Amaral-Zettler, L.,
Millimeter- and micrometer-sized plastics are well-documented in aquatic ecosystems, but little is known about sub-micrometer particles because conventional analytical techniques lack sufficient spatial resolution or the spectroscopic means to unambiguously identify individual nanometer-sized plastic particles. We combined the spatial resolution of atomic force microscopy with...
Jiang, X., Zhang, J., Liu, Y., Wang, Z., Liu, X., Guo, X., Li, C.,
Dopant-free hole transporting materials (HTMs) are promising to tackle the stability issue of perovskite solar cells (PSCs) compared to traditional ones requiring hygroscopic additives. In addition to developing more dopant-free HTMs and increasing their hole extraction/transport ability, interfacial issues between perovskite and dopant-free HTM also...
Liu, J., MAO, S., Song, S., Huang, L., Belfiore, L., Tang, J.,
Photoacoustic micro-fluidic pumps (PMPs) based on localized surface plasmon resonance (LSPR) of nanoparticles (NPs) can convert photo energy into kinetic energy of fluidic jetting therefore attracted considerable attentions in microfluidics and optofluidics. In this work, PMPs are fabricated using Ag-Au alloy NPs. Through solid-state-dewetting, alloy...