Results 51 to 60 of about 281,496 (245)

Preparation and Characterization of Thin-Film Solar Cells with Ag/C₆₀/MAPbI₃/CZTSe/Mo/FTO Multilayered Structures

Molecules, 2021
New solar cells with Ag/C60/MAPbI3/Cu2ZnSnSe4 (CZTSe)/Mo/FTO multilayered structures on glass substrates have been prepared and investigated in this study. The electron-transport layer, active photovoltaic layer, and hole-transport layer were made of C60,
Tsung-Wen Chang, Chzu-Chiang Tseng, Dave W. Chen, Gwomei Wu, Chia-Ling Yang, Lung-Chien Chen   +5 more
doaj   +1 more source

Carrier transport properties of the Group-IV ferromagnetic semiconductor Ge1-xFex with and without boron doping

, 2014
We have investigated the transport and magnetic properties of group-IV ferromagnetic semiconductor Ge1-xFex films (x = 1.0 and 2.3 %) with and without boron doping grown by molecular beam epitaxy (MBE).
Akiyama, Ryota, Ban, Yoshisuke, Nakane, Ryosho, Tanaka, Masaaki, Wakabayashi, Yuki   +4 more
core   +2 more sources

Photovoltaic devices with a PEDOT:PSS:WOx hole transport layer

RSC Advances, 2014
In this paper, we report a significantly improved fill factor (FF) of inverted poly(3-hexylthiophene) (P3HT) and indene-C60 bisadduct (ICBA) organic photovoltaic devices via surface modification. The influence of the poly(3,4-ethylenedioxythiophene):poly(styrene-sulfonate) (PEDOT:PSS) hole extraction layer (HEL) modified with tungsten oxide (WOx) on ...
Seung Joo Lee, Abd. Rashid bin Mohd Yusoff, Jin Jang   +2 more
openaire   +1 more source

Ballistic electron emission microscopy spectroscopy study of AlSb and InAs/AlSb superlattice barriers [PDF]

, 1998
Due to its large band gap, AlSb is often used as a barrier in antimonide heterostructure devices. However, its transport characteristics are not totally clear. We have employed ballistic electron emission microscopy (BEEM) to directly probe AlSb barriers
Cheng, X.-C., McGill, T. C.
core   +1 more source

Valence band alignment and hole transport in amorphous crystalline silicon heterojunction solar cells [PDF]

, 2015
To investigate the hole transport across amorphous crystalline silicon heterojunctions, solar cells with varying band offsets were fabricated using amorphous silicon suboxide films.
Korte, L., Liebhaber, M., Mews, M., Rech, B.   +3 more
core   +2 more sources

Inverted device architecture for high efficiency single-layer organic light-emitting diodes with imbalanced charge transport

Nature Communications
Many wide-gap organic semiconductors exhibit imbalanced electron and hole transport, therefore efficient organic light-emitting diodes require a multilayer architecture of electron- and hole-transport materials to confine charge recombination to the ...
Xiao Tan, Dehai Dou, Lay-Lay Chua, Rui-Qi Png, Daniel G. Congrave, Hugo Bronstein, Martin Baumgarten, Yungui Li, Paul W. M. Blom, Gert-Jan A. H. Wetzelaer   +9 more
doaj   +1 more source

Perovskite solar cells free of hole transport layer

Journal of Sol-Gel Science and Technology, 2019
In this work, easy and simple structured perovskite solar cells (PSCs) are designed and characterized. Our effort was to reduce the cost of the fabrication of such PSC devices, first by using an inexpensive starting precursor (aqueous methylamine solution) for the perovskite materials and second by design in a PSC structure free of the expensive hole ...
Al Dahoudi, N., Asad, J., Shaat, Samy K., Musleh, H., Shurrab, N., Issa, A., Lahmar, Abelilah, Al-Kahlout, Amal, AlDahoudi, Naji M.   +8 more
openaire   +2 more sources

Investigating the performance of Tin-based perovskite solar cell with Cadmium Sulphide as etm and graphene as htm using SCAPS-1D

Фізика і хімія твердого тіла
Solar cells based on lead-free perovskite have demonstrated great potential for renewable energy. The SCAPS-1D simulation software was used in this study to perform device modelling of a lead-free perovskite solar cell of the architecture Glass/FTO/CdS ...
Adeyemi Joshua Owolabi, Haruna Ali, Ijeoma N Ukorah, M.Y. Onimisi, R.A. Tafida, J. Olalekan Awujoola, Hassan Gambo   +6 more
doaj   +1 more source

A Solution-Processed Tetra-Alkoxylated Zinc Phthalocyanine as Hole Transporting Material for Emerging Photovoltaic Technologies

International Journal of Photoenergy, 2018
A tetra-n-butoxy zinc phthalocyanine (n-BuO)4ZnPc has been synthesized in a single step, starting from commercial precursors, and easily purified. The molecule can be solution processed to form an effective and inexpensive hole transport layer for ...
Gloria Zanotti, Giuseppe Mattioli, Anna Maria Paoletti, Giovanna Pennesi, Daniela Caschera, Nitzan Maman, Iris Visoly-Fisher, Ravi K. Misra, Lioz Etgar, Eugene A. Katz   +9 more
doaj   +1 more source

Exciton Condensation and Perfect Coulomb Drag [PDF]

, 2012
Coulomb drag is a process whereby the repulsive interactions between electrons in spatially separated conductors enable a current flowing in one of the conductors to induce a voltage drop in the other. If the second conductor is part of a closed circuit,
A. D. K. Finck, AA High, ADK Finck, AG Rojo, AH MacDonald, D Snoke, D. Nandi, DA Huse, DA Pesin, DKK Lee, DV Fil, E Tutuc, HA Fertig, HA Fertig, IB Spielman, IB Spielman, J Kasprzak, J-J Su, J. P. Eisenstein, JP Eisenstein, JP Eisenstein, K. W. West, L Tiemann, L Tiemann, L Tiemann, L. N. Pfeiffer, LV Butov, M Kellogg, MB Pogrebinsky, PM Price, R Wiersma, S Yang   +31 more
core   +2 more sources