scholarly journals Micro-/Nano-Structures Fabricated by Laser Technologies for Optoelectronic Devices

2021 ◽  
Vol 9 ◽  
Author(s):  
Jian Yi ◽  
Hao Zhou ◽  
Wei-Hua Wei ◽  
Xing-Chen Han ◽  
Dong-Dong Han ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Performance Improvement ◽  
Optoelectronic Devices ◽  
Optical And Electrical Properties ◽  
Nano Structures ◽  
Laser Technologies ◽  
Recent Developments

Due to unique optical and electrical properties, micro-/nano-structures have become an essential part of optoelectronic devices. Here, we summarize the recent developments in micro-/nano-structures fabricated by laser technologies for optoelectronic devices. The fabrication of micro-/nano-structures by various laser technologies is reviewed. Micro-/nano-structures in optoelectronic devices for performance improvement are reviewed. In addition, typical optoelectronic devices with micro-nano structures are also summarized. Finally, the challenges and prospects are discussed.

Carbon Nanotubes for Photovoltaics

2014 ◽  
pp. 268-311
Author(s):  
Ayoola Brimmo ◽  
Mahieddine Emziane
Keyword(s):  
Carbon Nanotubes ◽  
Solar Cells ◽  
Electrical Properties ◽  
Organic Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Optical And Electrical Properties ◽  
Review Of The Literature ◽  
Dye Sensitized ◽  
Recent Developments ◽  
Sensitized Solar Cells

Recent developments show that the exceptional physical, optical, and electrical properties of Carbon Nanotubes (CNTs) have now caught the attention of the Photovoltaics (PV) industry. This chapter provides an updated and in-depth review of some of the most exciting and important developments in the application of CNTs in photovoltaics. The chapter begins with a discussion of the underlying properties of CNTs that make them promising for PV applications. A review of the literature on the application of CNTs in the photoactive layer of Silicon (Si)-based heterojunctions, as anchors for light harvesting materials in Dye Sensitized Solar Cells (DSSCs) and as components of other organic solar cells (OPVs), is then presented. Findings portend the promise of CNTs in bridging the gap between the two classes of solar cells currently in the market. Since the technology is in its early stages, it is generally limited by a general lack of understanding of CNTs and their adequate growth mechanisms.

Recent Developments of ZnO-Based P-Type Transparent Conductive Oxide Thin Films

2013 ◽  
Vol 743-744 ◽  
pp. 878-885
Author(s):  
Ming Wang ◽  
Xun Gang Diao ◽  
Ting Ting Guo ◽  
Xuan Wang
Keyword(s):  
Thin Films ◽  
Electrical Properties ◽  
High Performance ◽  
Transparent Conductive Oxide ◽  
Optical Transmittance ◽  
Optical And Electrical Properties ◽  
Conductive Oxide ◽  
Recent Developments ◽  
P Type ◽  
Deposition Techniques

Nowadays, high performance p-type transparent conductive oxide (TCO) thin films have gained tremendous intersts, and the fact is that if p-type TCOs with high electrical conductivity and optical transmittance can be fabricated, transparent p-n junctions can be obtained and invisible electronics be realized, and hence the use area of TCOs will be highly broadened. A lot of work have been done on non-stoichiometric and doped versions of p-type TCOs in the last few years to improve the optical and electrical properties by various deposition techniques. ZnO-based thin films were thought to be the most promising candidate for p-type TCOs based on the fact that ZnO has advantages over the others, so in this paper the development of ZnO-based p-type TCOs has been discussed. Firstly, the reasons why p-type ZnO-based TCOs are difficult to synthesize were discussed, and then the general ways now used to produce p-type ZnO-based TCOs were summerized, including intrinsic p-type ZnO, doping of groupelements, codoping of and elements, doping of group elements, the origin of p-type conductivity and the feasibility of each way, and the state-of-the-art optical and electrical properties were presented. Finally, the specific shortcomings in producing high quality p-type TCOs were discussed. Based on the comparision, it is believed that the doping of groupelements in ZnO may be the most pronising way in realizing p-type TCO.

Effects of various morphologies on the optical and electrical properties of boehmite nanostructures

CrystEngComm ◽  
2018 ◽  
Vol 20 (40) ◽  
pp. 6338-6350 ◽  
Author(s):  
Shubham Roy ◽  
Anupam Maity ◽  
Paulami Mandal ◽  
Dipak Kr. Chanda ◽  
Kunal Pal ◽  
...  
Keyword(s):  
Dielectric Properties ◽  
Electrical Properties ◽  
Optical And Electrical Properties ◽  
Nano Structures ◽  
High Dielectric

This work reports the variations in the fluorescence and ultra-high dielectric properties of various boehmite nano-structures.

Optical and Electrical Properties of Organic Conducting Polymers

2014 ◽  
Vol 8 (1) ◽  
pp. 1457-1463
Author(s):  
Salah Abdulla Hasoon
Keyword(s):  
Electrical Properties ◽  
Conjugated Polymer ◽  
Polymeric Materials ◽  
Quantum Mechanical ◽  
Optical And Electrical Properties ◽  
Electrically Conducting ◽  
Temperature Ranges ◽  
Lithium Tetrafluoroborate ◽  
Absorbance Peak ◽  
Polymerization Method

Novel electrically conducting polymeric materials are prepared in this work. Polythiophene (PT) and poly (3-Methelthiophene) (P3MT) films were prepared by electro-polymerization method using cyclic voltammetry in acetonitrile as a solvent and lithium tetrafluoroborate as the electrolyte on a gold electrode. Electrical properties of P3MT have been examined in different environments using UV-Vis absorption spectroscopy and quantum mechanical ab initio calculations, The observed absorption peaks at 314 and 415 nm, were attributed to the n-π* and π-π* transitions, respectively in the conjugated polymer chain, in contrast, the observed absorbance peak at 649 nm, is responsible for electric conduction. The temperature dependence of the conductivity can be fitted to the Arrhenius and the VTF equations in different temperature ranges.

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