نتایج جستجو برای: photovoltaic devices

تعداد نتایج: 219934  

2014
Sonya Calnan

Metalloid and metal based oxides are an almost unavoidable component in the majority of solar cell technologies used at the time of writing this review. Numerous studies have shown increases of ≥1% absolute in solar cell efficiency by simply substituting a given layer in the material stack with an oxide. Depending on the stoichiometry and whether other elements are present, oxides can be used f...

2005
Mark E. Orazem

A one-dimensional mathematical model of the liquid-junction photovoltaic cell was coupled with primary resistance calculations to predict the optimal performance of three cell configurations. Two cells are considered in which the semiconductor is i l luminated from the electrolyte side and one in which the semiconductor is i l luminated from the current-collector side. An economic analysis is p...

2000
J. S. Salafsky

An architecture in which nand p-type materials alternate laterally in the active ®lm of a device with a spatial period of about a carrier di€usion length would lead to ecient (opto)electronic devices for photovoltaic energy conversion and switching, among others. Such an architecture, although dicult to achieve with conventional silicon-based schemes, is within reach using semiconductor nanoc...

2012
Yi Jia Xiao Li Peixu Li Kunlin Wang Anyuan Cao Jinquan Wei Hongwei Zhu Dehai Wu

We present the photovoltaic properties of heterojunctions made from single-walled carbon nanotube (SWNT) fibers and n-type silicon wafers. The use of the opaque SWNT fiber allows photo-generated holes to transport along the axis direction of the fiber. The heterojunction solar cells show conversion efficiencies of up to 3.1% (actual) and 10.6% (nominal) at AM1.5 condition. In addition, the use ...

Journal: :Advanced materials 2010
Vivian E Ferry Jeremy N Munday Harry A Atwater

This paper reviews the recent research progress in the incorporation of plasmonic nanostructures with photovoltaic devices and the potential for surface plasmon enhanced absorption. We first outline a variety of cell architectures incorporating metal nanostructures. We then review the experimental fabrication methods and measurements to date, as well as systematic theoretical studies of the opt...

Journal: :Nanoscale 2015
Jeffrey G Tait Michaël F L De Volder David Cheyns Paul Heremans Barry P Rand

A current bottleneck in the thin film photovoltaic field is the fabrication of low cost electrodes. We demonstrate ultrasonically spray coated multiwalled carbon nanotube (CNT) layers as opaque and absorptive metal-free electrodes deposited at low temperatures and free of post-deposition treatment. The electrodes show sheet resistance as low as 3.4 Ω □(-1), comparable to evaporated metallic con...

2016
Artem A. Bakulin Yuxin Xia Huib J. Bakker Olle Inganäs Feng Gao

Charge separation and recombination are key processes determining the performance of organic optoelectronic devices. Here we combine photoluminescence and photovoltaic characterisation of organic solar cell devices with ultrafast multi-pulse photocurrent spectroscopy to investigate charge generation mechanisms in the organic photovoltaic devices based on a blend of an alternating polyquinoxalin...

2017
Jicheng Zhang SuFei Xie Zhen Lu Yang Wu Hongmei Xiao Xuejuan Zhang Guangwu Li Cuihong Li Xuebo Chen Wei Ma Zhishan Bo

This data contains additional data related to the article "Influence of Substrate Temperature on the Film Morphology and Photovoltaic Performance of Non-fullerene Organic Solar Cells" (Jicheng Zhang et al., In press) [1]. Data include measurement and characterization instruments and condition, detail condition to fabricate norfullerene solar cell devices, hole-only and electron-only devices. De...

Journal: :Nano letters 2010
Ximin He Feng Gao Guoli Tu David Hasko Sven Hüttner Ullrich Steiner Neil C Greenham Richard H Friend Wilhelm T S Huck

In this paper, we demonstrate a double nanoimprinting process that allows the formation of nanostructured polymer heterojunctions of composition and morphology that can be selected independently. We fabricated photovoltaic (PV) devices with extremely high densities (10(14)/mm(2)) of interpenetrating nanoscale columnar features in the active polymer blend layer. The smallest feature sizes are as...

2015
M. Gopichand Naik

---------------------------------------------------------------------***--------------------------------------------------------------------Abstract The interconnection of small modular devices such as photovoltaic, small wind turbines and storage devices ,commonly storage batteries to a Low Voltage distribution system leads to a new energy system known as the Microgrid. This paper presents the...

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