Results 211 to 220 of about 546,721 (262)

Back-Gated Point Contact

Japanese Journal of Applied Physics, 2000
In this study, we fabricated split gates on a back-gated undoped heterostructure to perform transport measurements on a quantum point contact (QPC). Using this back-gated QPC system, we obtained clear quantized conductance plateaus over a wide range of electron densities (1.2×1015 m-2 to 3.3×1015 m-2) without being affected by imperfections.
Katsushi Hashimoto, Sen Miyashita, Tadashi Saku, Yoshiro Hirayama   +3 more
openaire   +1 more source

Dye‐Sensitized Back‐Contact Solar Cells

Advanced Materials, 2010
sensitized solar cells (DSCs), [ 2 ] are based on low-cost materials and can be fabricated by means of simple printing techniques. Two transparent fl uorine-doped tin oxide (FTO) coated glass substrates are conventionally used as collecting electrodes to extract photogenerated charge carriers from the dye-sensitized junction.
Dongchuan, Fu, Xiao Li, Zhang, Richard L, Barber, Udo, Bach   +3 more
openaire   +2 more sources

Numerical simulation of back contact-back junction solar cells with emitter double contact

2015 Fotonica AEIT Italian Conference on Photonics Technologies, 2015
This work presents a simulation study of Back Contact-Back Junction solar cells (BC-BJ) with emitter double contact. We report that the addition of a second contact line can significantly improve the efficiency of this kind of solar cells for long emitters.
Guevara, M, Procel, P, Guerra, N, Pierro, S, Maccaronio V, CRUPI, Felice, COCORULLO, Giuseppe   +6 more
openaire   +1 more source

Etch-back simplifies interdigitated back contact solar cells

2014 IEEE 40th Photovoltaic Specialist Conference (PVSC), 2014
The process of making Interdigitated Back Contact (IBC) solar cell is implemented by a novel simplified etch-back technique, while aiming for no compromise on high-efficiency potentials. Simplified etch-back creates localized heavy and light phosphorus and boron diffusions simultaneously.
Ngwe Zin, Andrew Blakers, Evan Franklin, Kean Fong, Teng Kho, Chog Barugkin, Eric Wang   +6 more
openaire   +1 more source

Back Contact CdSe/CdTe Photovoltaics

ECS Meeting Abstracts, 2013
Abstract not Available.
Daniel Josell, Ratan Debnath, Carlos Hangarter, Jong-Yoon Ha, Jonathan Guyer, Bongyoung Yoo, Dong-uk Kim, Mehmet A. Sahiner, Cristopher J Reehil, William A. Manners   +9 more
openaire   +1 more source

Co-Diffused Back-Contact Back-Junction Silicon Solar Cells

2013
Aiming for industrial solar cell fabrication the ratio of costs to watt peak has to be lowered [1]. This can be achieved by either decreasing the overall solar cell manufacturing costs including material, process and module assembly or increasing solar cell efficiency [2].
Keding, Roman, Stüwe, David, Kamp, Mathias, Reichel, Christian, Wolf, Andreas, Woehl, Robert, Borchert, Dietmar, Reinecke, H., Biro, Daniel   +8 more
openaire   +1 more source

Inspection of Back Surface Aspheric Contact Lenses

Optometry and Vision Science, 1979
Two methods of clinically inspecting and verifying rigid back surface aspheric contact lenses were investigated. A modification of the Radiuscope was found to be an accurate method for making such measurements. Measurement data of a number of aspheric lenses obtained by using this procedure are presented.
A J, Defazio, G E, Lowther
openaire   +2 more sources

Verification of Aspheric Contact Lens Back Surfaces

Optometry and Vision Science, 2003
To suggest a tolerance level for the degree of asphericity of aspheric rigid gas-permeable contact lenses and to find a simple method for its verification.Using existing tolerances for the vertex radius, tolerance limits for eccentricity and p values and were calculated.
Holger H, Dietze, Michael J, Cox, William A, Douthwaite   +2 more
openaire   +2 more sources

Back-Contact Perovskite Solar Cells

2020
Perovskite solar cells (PSCs) reached power conversion efficiencies comparable to the silicon alternatives, currently dominating the photovoltaic market. Researchers are now seeking to address other factors that are inhibiting the rate of commercialisation of perovskite technologies such as the scalability of the manufacturing process and stability ...
openaire   +1 more source

Large-Area Back-Contact Back-Junction Solar Cell With Efficiency Exceeding 21%

IEEE Journal of Photovoltaics, 2012
In this study, high-efficiency solar cells are presented with the use of low-cost industrially available technologies. This results in the so-called ZEBRA concept: a litho-free process in which standard 156 × 156 mm2 monocrystalline n-type Cz-Si wafers are processed into high-efficiency interdigitated back-contact solar cells.
Giuseppe Galbiati, Valentin D. Mihailetchi, Andreas Halm, Lejo J. Koduvelikulathu, Razvan Roescu, Radovan Kopecek, Kristian Peter, Joris Libal   +7 more
openaire   +1 more source