Topic
p–n junction
About: p–n junction is a research topic. Over the lifetime, 7701 publications have been published within this topic receiving 108890 citations. The topic is also known as: p-n junction.
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28 citations
TL;DR: In this paper, an organic p-n junction composed of a p-CuPc/n-Bphen layer showed very efficient charge generation under a reverse bias reaching to 100 mA/cm2 at 0.3 V.
28 citations
TL;DR: In this paper, the photodetector response profile of a hybrid plasma/semiconductor detector is compared to that of a conventional pn junction photodiode, but is blueshifted by ∼60nm, and the peak photosensitivity of a Si microplasma device having a 50×50μm2 aperture is approximately twice that for its larger (100×100μm) counterpart under identical conditions.
Abstract: Detailed measurements of the photosensitivity of Si microcavity plasma photodetectors in the visible and near-infrared (420–1100 nm) are reported for input optical intensities to a 100×100μm2 inverted pyramid device varied over three orders of magnitude (10−5–10−2Wcm−2). By resolving the contribution to the overall device response from the plasma/semiconductor interaction, as opposed to bulk Si photoconductivity, the photosensitivity of the plasma photodetector operating in 500 Torr of Ne was determined to range from (2.2±0.4)A∕W for 2 nW of input power (at λ=780nm) to (1.3±0.2)A∕W at ∼0.65μW. The spectral response profile of the hybrid plasma/semiconductor detector is similar to that of a conventional pn junction photodiode, but is blueshifted by ∼60nm. Also, the peak photosensitivity (3.5A∕W at λ≃900nm) of a Si microplasma device having a 50×50μm2 aperture is approximately twice that for its larger (100×100μm2) counterpart under identical conditions. Analysis of the data suggest that bandbending at the ...
28 citations
28 citations
TL;DR: In this article, a radial pn junction nanowire (NW) with surface depletion was solved for a radial energy band and electric field profiles, and an optimum device design was proposed to satisfy material, optical and electrostatic constraints in high efficiency NW solar cells.
Abstract: Poisson's equation is solved for a radial pn junction nanowire (NW) with surface depletion. This resulted in a model capable of giving radial energy band and electric field profiles for any arbitrary core/shell doping density, core/shell dimensions, and surface state density. Specific cases were analyzed to extract pertinent underlying physics, while the relationship between NW specifications and the depletion of the NW were examined to optimize the built-in potential across the junction. Additionally, the model results were compared with experimental results in literature to good agreement. Finally, an optimum device design is proposed to satisfy material, optical, and electrostatic constraints in high efficiency NW solar cells.
28 citations