Results 91 to 100 of about 3,099 (255)

Correlation of resistance switching and polarization rotation in copper doped zinc oxide (ZnO:Cu) thin films studied by Scanning Probe Microscopy

Journal of Materiomics, 2019
This paper presents multiple-modes Scanning Probe Microscopy (SPM) studies on characterize the correlation of resistance switching (RS) and polarization rotation (PR) in copper doped ZnO (ZnO:Cu) thin films.
Juanxiu Xiao, Tun Seng Herng, Yang Guo, Jun Ding, Ning Wang, Kaiyang Zeng   +5 more
doaj   +1 more source

Predictable behavior of organic photovoltaic cells by Kelvin probe force microscopy

, 2013
International audienceWe investigate a new way to access to the open circuit voltage (Voc) of organicphotovoltaic (OPV) cells: the Kelvin probe force microscopy (KPFM). KPFM is apowerful technique, allowing mapping the surface potential above any surface
Roche, R., R., Roche, Dumas, Philippe, Ph. DUMAS, A. L. LEREU, Lereu, Aude, L., R. ROCHE, Lereu, Aude L., L.   +7 more
core   +1 more source

Electronic‐State Polarization Engineering‐Regulated Fluorinated Covalent Organic Framework Nanocables for Fast Lithium‐Ion Storage

Advanced Science, EarlyView.
Electronic‐state polarization engineering is realized by constructing fluorinated COF nanocables on conductive CNTs scaffolds. The polar C─F units generate localized electric fields and strong ion‐dipole interactions, promoting Li+ adsorption and transport.
Kaifu Xu, Jianfei Shi, Yuting Qin, Di He, Chengyin Wang, Tianyi Wang   +5 more
wiley   +1 more source

Electrostatic Potential Complementarity for Thickness‐Tolerant Cathode Interlayers in High‐Efficiency Organic and Tandem Solar Cells

Advanced Science, EarlyView.
Two model molecules — trimesic acid (TMA) and phloroglucinol (PG) — with opposite central electrostatic potential (ESP) distributions are employed to elucidate how molecular electrostatic interactions regulate the cathode interlayer (CIL) PDINN. Electrostatic potential complementarity is revealed as the intrinsic origin of thickness sensitivity in CILs,
Xiaoman Ding, Dana Mukasheva, Jiaxu Che, Guangye Zhang, Xiuze Hei, Haoran Lin, Jie Lv, Patrick Fong, Zhiwei Ren, Annie Ng, Mingjian Yuan, Hongyu Zhang, Gang Li, Hanlin Hu   +13 more
wiley   +1 more source

AFM-assisted fabrication of thiol SAM pattern with alternating quantified surface potential

Nanoscale Research Letters, 2011
Thiol self-assembled monolayers (SAMs) are widely used in many nano- and bio-technology applications. We report a new approach to create and characterize a thiol SAMs micropattern with alternating charges on a flat gold-coated substrate using atomic ...
Simons Janet, Xu Song, Moores Bradley, Leonenko Zoya   +3 more
doaj  

Synaptic κ‐Ga2O3 Photodetectors for Privacy‐Enhancing Neuromorphic Computing

Advanced Science, EarlyView.
We report on a single‐element neuromorphic sensor based on the persistent photoconductivity (PPC) of κ‐phase Ga2O3 capable of sensing ultraviolet light and harnessing intrinsic data privacy. The approach establishes a materials‐enabled pathway toward compact, intelligent, and privacy‐enhancing optoelectronic hardware for next‐generation edge systems ...
Yanqing Jia, Heming Lin, Hongliang Chang, Wenqing Niu, Yue Wang, Hang Lu, Abdullah AlQuwayzani, Yara Banda, Long Chen, Qingxiao Wang, Bambar Davaasuren, Mohamed Ben Hassine, Tien Khee Ng, Boon S. Ooi   +13 more
wiley   +1 more source

Imaging ferroelectric domains via charge gradient microscopy enhanced by principal component analysis

Journal of Materiomics, 2017
Local domain structures of ferroelectrics have been studied extensively using various modes of scanning probes at the nanoscale, including piezoresponse force microscopy (PFM) and Kelvin probe force microscopy (KPFM), though none of these techniques ...
Ehsan Nasr Esfahani, Xiaoyan Liu, Jiangyu Li   +2 more
doaj   +1 more source

Modulating the Charge Transfer Channels via Constructing Charge‐Assisted Hydrogen‐Bonded Organic Frameworks for Enhanced Photosynthesis of Hydrogen Peroxide

Advanced Science, EarlyView.
This work reports a strategy of engineering charge‐assisted hydrogen bonds to tailor charge transfer channels in HOFs, significantly improving their performance in photocatalytic H2O2 production. ABSTRACT The production of H2O2 via artificial photosynthesis is often limited by inefficient charge‐carrier separation, causing significant charge ...
Yajun Zhao, Xianzhi Lan, Tiantian Chen, Qijie Mo, Chao Peng, Jianbo Jia, Jiewei Liu, Cheng‐Yong Su   +7 more
wiley   +1 more source

In-situ investigation of graphene oxide under UV irradiation: Evolution of work function

AIP Advances, 2015
Using in-situ Kelvin probe force microscopy (KPFM) to measure surface potential, we investigated the time-dependent work function evolution of solution-processed graphene oxide (GO) under ultraviolet (UV) irradiation.
Jun Li, Xiang Qi, Guolin Hao, Long Ren, Jianxin Zhong   +4 more
doaj   +1 more source

Improved Kelvin probe force microscopy for imaging individual DNA molecules on insulating surfaces

, 2010
Electrostatic forces and potentials are keys in determining the interactions between biomolecules. We have recently imaged the topography and electrostatic surface potential of nucleic acid molecules on silicon surfaces using Kelvin probe force ...
Stefan Howorka, Leung, Carl, Bart W. Hoogenboom, Dario Maradan, Carl Leung, Kramer, Armin, Howorka, Stefan, Hoogenboom, Bart W., Mesquida, Patrick, Armin Kramer, Patrick Mesquida, Maradan, Dario   +11 more
core   +1 more source