Scientists have developed three-dimensional fiber optic-based solar cells hidden

Renewable energy and green energy is driving the future economic development. As an important one and sustainable energy technologies HP297 , J2178 , KD186  , solar cells will become the main source of energy to meet global demand for energy. The various types of solar cells, dye solar cells with its high price and has been widely used.
Traditional dye solar cells using nanoparticles and nanowires to improve its photoelectric conversion efficiency. However, these are based on two-dimensional planar structure, thus limiting the efficiency of such photovoltaic cells further enhanced. Georgia Institute of Technology (Georgia Institute of Technology) Professor Wang Zhonglin led the research team developed a nano-and fiber-optic technology, a combination of three-dimensional dye solar cells. Its unique three-dimensional structure similar greatly improved photoelectric conversion efficiency of solar cells. The latest results recently published in Germany, “Applied Chemistry” (Angewandte Chemie) on.
Professor Wang Zhonglin, Dr. Wei Yaguang and graduate student Benjamin temperature super-cloth solar cell structure and optical fiber technology combined with the use of nano-structured photovoltaic cells to achieve a three-dimensional design. Fiber and nano-wire hybrid structure,  MM165 , NF343 , NR222  the main structure of three-dimensional dye solar cells, including fiber optic and vertical growth on the fiber surface of zinc oxide nanowire arrays (as shown). Sunlight incident from the fiber end of the axial extension and dissemination. 3D solar cell design idea is the core of the incident light in optical fiber communication processes within the multiple reflections. Each time the reflection process, the incident light through the surface of zinc oxide nanowires and its attached dye interaction. Multiple reflections of the incident light to increase the surface of sub-and nano-line interaction between the number of dye, which greatly increased the absorption of light, as well as the transport efficiency of optoelectronics. Experimental results show that a three-dimensional for the same dye solar cells, ThinkPad T60 battery  as opposed to light exposure in the fiber wall, extension of the axial spread of the light energy conversion efficiency of solar cells increased six-fold. In a sun (AM 1.5) light, the nanowires of zinc oxide-based dye solar cells the three-dimensional photoelectric conversion efficiency of 3.3%. The efficiency ratio previously reported the same type of two-dimensional dye solar cells with maximum efficiency above 120%, than the use of titanium dioxide thin films coated with zinc oxide nanowires dye solar cell efficiency above 47%.
The new three-dimensional dye solar cells in scientific research and practical applications, has the following salient features. From the physics point of view, to a two-dimensional nanowire-based dye solar cells on the surface area of small  ThinkPad T40 battery , thereby limiting the loading of dyes and the absorption of sunlight. To increase the length of the nanowires can be increased surface area, but the length of the nanowires by the material preparation and electronic diffusion length restrictions. The unique three-dimensional structure of dye solar cells to overcome these difficulties: the incident sunlight multiple reflections within the fiber, without increasing the distance of electron transport and nano-wire under the surface of many dye interactions, greatly increasing the absorption of light as well as the transport efficiency of photoelectron. In practice, three-dimensional dye solar cell has the following main advantages: first, the use of fiber allows solar cells to remote working and have high mobility. It can work in the sunlight can not reach the strata and the depths of the ocean; second, three-dimensional dye solar cells have a smaller size, higher efficiency, greater liquidity, more reliable design, 40Y6797 battery , 40Y6799 battery a more flexible shape, and may reduce production costs; third, three-dimensional dye solar cells could be in a different light intensities to work effectively with a high dynamic range. Results of this study is designed to use optical fiber and organic and inorganic materials, hybrid structure of the three-dimensional high-performance multi-function solar cells has opened up new methods and ideas.