Papers – Page 21 – TechConnect Briefs

Plasmonically Enhanced Thin-Film Amorphous Silicon Solar Cells

Sonsalla T., Louisiana Tech University, US

Hydrogenated amorphous silicon (a-Si:H) can absorb the visible part of the solar spectrum better than crystalline silicon. For this reason, a-Si:H solar cells can be much thinner than crystalline silicon solar cells. Thinner cells reduce [...]

Harvesting light energy with optical rectennas

Reynaud C., Duché D., Palanchoke U., Dang F-X., Patrone L., Le Rouzo J., Escoubas L., Gourgon C., Charaï A., Alfonso C., Margeat O., Ackermann J., Balaban S., Simon J-J., Aix Marseille University, FR

As predicted by Schockley and Queisser in the 60’s, the photoconversion phenomenon involved in mono junctions solar cells has an upper limit of 33% [1]. Other concepts, such as high efficiency tandem solar cells designed [...]

Modeling of Minibands for Si/SC Quantum Dot Superlattice Solar Cells

Tsai Y-C., Lee M-Y., Li Y., Samukawa S., National Chiao Tung University, TW

Silicon/silicon carbide quantum dot superlattice (Si / SiC QDSL) solar cells with aluminum oxide (Al2O3) passivation experimentally show high short-circuit current (Jsc) of 4.75 mA/cm2. Corresponding numerical result reveals that both the quantum enhancement on [...]

Nanoscale charge transport properties of perovskite solar cells with WSe2 flakes as protective layer for stable performance

Adhikari N., Bandyopadhyay A., Kaul A.B., The University of Texas, US

Organic-inorganic perovskite solar cells have become a promising technology for next generation solar cells due to their superior optoelectronic properties such as tunable low bandgap, long charge diffusion length, low exciton binding energy and balanced [...]

Next Generation Photovoltaic Devices Leveraging Restricted Angular Emissions

Welser R.E., Sood A.K., Dhar N.K., Magnolia Optical Technologies, Inc., US

Thin-film III-V devices are an attractive technology for photovoltaic energy harvesting devices, capable of supplying portable and mobile power in both terrestrial and space environments. Single-junction III-V technologies can provide high levels of performance over [...]

Mechanical alloying for green catalyst synthesis

Pithakratanayothin S., Tongsri R., Chaisuwan T., Wongkasemjit S., Chulalongkorn University, TH

Over a decade, bimetallic catalyst performed tremendously powerful catalytic activities in many fields of chemistry, especially, hydroxylation of benzene or phenol, and selective hydrogenation in α,β-unsaturated aldehyde due to its versatile properties from the second [...]

High potential of mesoporous ceria/ceria-zirconia synthesized via nanocasting pathway for catalytic applications

Jampa S., Luengnaruemitchai A., Chaisuwan T., Wongkasemjit S., Chulalongkorn University, TH

Presently, nanocasting process, an alternative synthesis pathway, has been widely employed to synthesize and design ordered nonsiliceous mesoporous materials. In this work, mesoporous ceria (CeO2) and mesoporous ceria-zirconia (CeO2-ZrO2), were successfully prepared via nanocasting method [...]

Raney Nickel Catalyst – A Molecular Modeling Study

Schweizer S., Chaudret R., Spyriouni T., Low J.J., Subramanian L., Scienomics, US

Porous solid materials are central to various application areas. Due to their specific structural features, they are often used in catalysis, as storage material for hydrogen or small molecules, or as molecular sieves, but they [...]

Study of a Power Source Based on Low Energy Nuclear Reactions (LENRs) Using Hydrogen Pressurized Nanoparticles

Miley G.H., University of Illinois, US

We are studying anomalous heat, attributed to Low Energy Nuclear Reactions (LENRs), generated from metal alloy nanoparticles loaded with hydrogen (or deuterium) through pressurizing the vessel containing the particles [1]. The primary result thus far [...]

A Combined Photoelectrochemical and Theoretical Study to Understand Adsorption Properties of Organic Molecules on TiO2 Surfaces

Sun T., Yunnan University, CN

Titanium dioxide (TiO2) applications in clean energy generation and environmental remediation involve interactions between organic species and TiO2 materials. Such interactions not only depend on the intrinsic properties of TiO2, but also on its surfaces [...]