Results 101 to 110 of about 1,058,178 (293)

Charge density waves and surface Mott insulators for adlayer structures on semiconductors: extended Hubbard modeling

, 1998
Motivated by the recent experimental evidence of commensurate surface charge density waves (CDW) in Pb/Ge(111) and Sn/Ge(111) sqrt{3}-adlayer structures, as well as by the insulating states found on K/Si(111):B and SiC(0001), we have investigated the ...
A. Goldoni, A. Goldoni, A. Mascaraque, A. Selloni, C. Cheng, C. Jayaprakash, E. Tosatti, E. Tosatti, E. Tosatti, Erio Tosatti, G. D. Mahan, G. Le Lay, G. Santoro, Giuseppe Santoro, H. B. Elswijk, H. H. Weitering, H. R. Krishnamurthy, J. Avila, J. E. Northrup, J. J. Lander, J. J. Lander, J. M. Carpinelli, J. M. Carpinelli, J. Nogami, J. Nogami, J. Tolédano, J. Zegenhagen, J.-M. Themlin, K. J. Wan, K. J. Wan, L. I. Johansson, M. Sabisch, O. Zachar, R. R. dos Santos, S. Scandolo, Sandro Scandolo, W. Mönch   +36 more
core   +1 more source

Analyzing Electronic Excitations and Exciton Binding Energies in Y6 Films

Advanced Functional Materials, EarlyView.
The Y6 molecule is used for increasing the efficiency of organic solar cells. The exciton binding energy is calculated for ensembles of Y6 molecules that are representative of the typically used films. The calculations show that the excitons typically spread out over many molecules.
Sahar Javaid Akram, Sophie Meißner, Stephan Kümmel   +2 more
wiley   +1 more source

Implicating the Contributions of Surface and Bulk States on Carrier Trapping and Photocurrent Performance of BiVO\u3csub\u3e4\u3c/sub\u3e Photoanodes [PDF]

, 2017
Monoclinic-scheelite BiVO4 has been widely studied as a promising oxygen evolution reaction (OER) catalyst in artificial photosynthesis. Though significant progress to improve or augment its catalysis performance has been made, fundamental understanding ...
Huang, Jier, Pattengale, Brian
core   +1 more source

Bias‐Free Highly Efficient and Stable Dye‐Sensitized Photoelectrochemical Cells via Cascade Charge Transfer

Advanced Functional Materials, EarlyView.
A buried‐junction DSPEC design is introduced that leverages cascade charge transfer to enhance efficiency, stability, and versatility. This approach facilitates effective charge transfer and minimizes recombination losses, leading to significant improvements.
Jun‐Hyeok Park, Kyounglim Kim, Jinyoung Lee, Sarang Kim, Gwangsu Yoon, So Yeon Yoon, Jeong Kyeong Lee, Ji‐Wook Jang, Tae‐Hyuk Kwon   +8 more
wiley   +1 more source

Photoswitchable Conductive Metal–Organic Frameworks

Advanced Functional Materials, EarlyView.
A conductive material where the conductivity can be modulated remotely by irradiation with light is presented. It is based on films of conductive metal–organic framework type Cu3(HHTP)2 with embedded photochromic molecules such as azobenzene, diarylethene, spiropyran, and hexaarylbiimidazole in the pores.
Yidong Liu, Mersad Mostaghimi, Abhinav Chandresh, Saibal Jana, Wolfgang Wenzel, Lars Heinke   +5 more
wiley   +1 more source

Use of low-energy hydrogen ion implants in high-efficiency crystalline-silicon solar cells [PDF]

The use of low-energy hydrogen implants in the fabrication of high-efficiency crystalline silicon solar cells was investigated. Low-energy hydrogen implants result in hydrogen-caused effects in all three regions of a solar cell: emitter, space charge ...
Fonash, S. J., Mu, H. C., Sigh, R.
core   +1 more source

Targeting Negative Surface Charges of Cancer Cells by Multifunctional Nanoprobes

Theranostics, 2016
A set of electrostatically charged, fluorescent, and superparamagnetic nanoprobes was developed for targeting cancer cells without using any molecular biomarkers. The surface electrostatic properties of the established cancer cell lines and primary normal cells were characterized by using these nanoprobes with various electrostatic signs and amplitudes.
Chen, Bingdi, Le, Wenjun, Wang, Yilong, Li, Zhuoquan, Wang, Dong, Ren, Lei, Lin, Ling, Cui, Shaobin, Hu, Jennifer J., Hu, Yihui, Yang, Pengyuan, Ewing, Rodney C., Shi, Donglu, Cui, Zheng   +13 more
openaire   +2 more sources

Intermolecular Interactions as Driving Force of Increasing Multiphoton Absorption in a Perylene Diimide‐Based Coordination Polymer

Advanced Functional Materials, EarlyView.
This study uncovers the unexplored role of intermolecular interactions in multiphoton absorption in coordination polymers. By analyzing [Zn2tpda(DMA)2(DMF)0.3], it shows how the electronic coupling of the chromophores and confinement in the MOF enhance two‐and three‐photon absorption.
Simon Nicolas Deger, Anna Mauri, Yang Cui, Sebastian Josef Weishäupl, Ali Deniz Özdemir, Hamad Syed, Aleksandr Ovsianikov, Wolfgang Wenzel, Alexander Pöthig, Jürgen Hauer, Mariana Kozlowska, Roland Augustinus Fischer   +11 more
wiley   +1 more source

Molecular origin of AuNPs-induced cytotoxicity and mechanistic study

Scientific Reports, 2019
Gold nanoparticles (AuNPs) with diverse physicochemical properties are reported to affect biological systems differently, but the relationship between the physicochemical properties of AuNPs and their biological effects is not clearly understood.
Euiyeon Lee, Hyunjin Jeon, Minhyeong Lee, Jeahee Ryu, Chungwon Kang, Soyoun Kim, Junghyun Jung, Youngeun Kwon   +7 more
doaj   +1 more source

Surface Charge Characteristics of Bacillus Subtilis NRS-762 Cells

Biotechnology and Bioprocessing, 2018
Bacterial cell surface carries an electrical charge due to the myriad functional groups present, as well as assortment of ions and molecules non-specifically adsorbed to the cell surface. Thus, solution in contact with the bacterial cell surface play a critical role in influencing the overall surface charge characteristics through conferring non ...
openaire   +1 more source