APAKAH MAKSUD PHOTOCONDUCTIVITY dalam CORSICA?
Photoconductivity
Photoconductivity adalah fenomena optik dan elektrik di mana bahan menjadi lebih konduktif elektrik kerana penyerapan radiasi elektromagnet seperti cahaya yang boleh dilihat, cahaya ultraviolet, cahaya inframerah, atau radiasi gamma. Apabila cahaya diserap oleh bahan seperti semikonduktor, bilangan elektron bebas dan lubang elektron meningkat dan menimbulkan kekonduksian elektriknya. Untuk menyebabkan pengujaan, cahaya yang menyerang semikonduktor mesti mempunyai tenaga yang cukup untuk meningkatkan elektron merentasi jurang band, atau untuk merangsang kekotoran dalam jurang band. Apabila voltan bias dan perintang beban digunakan secara siri dengan semikonduktor, penurunan voltan merentasi bebibir beban boleh diukur apabila perubahan kekonduksian elektrik bahan berubah arus mengalir melalui litar. Contoh klasik bahan photoconductive termasuk polyvinylcarbazole polimer konduktif, digunakan secara meluas dalam fotokopi; sulfida plumbum, yang digunakan dalam aplikasi pengesanan inframerah, seperti Rudal yang mencari haba di Sidewinder A.S. dan Rusia; dan selenium, yang digunakan dalam televisyen dan xerografi awal.
Definisi photoconductivity dalam kamus Corsica
Takrif fotokonduktiviti dalam kamus adalah perubahan kekonduksian elektrik bahan-bahan tertentu, seperti selenium, akibat penyerapan sinaran elektromagnetik.
CORSICA BUKU YANG BERKAIT DENGAN «PHOTOCONDUCTIVITY»
Ketahui penggunaan
photoconductivity dalam pilihan bibliografi berikut. Buku yang berkait dengan
photoconductivity dan ekstrak ringkas dari yang sama untuk menyediakan konteks penggunaannya dalam kesusasteraan Corsica.
1
Photoconductivity and related phenomena
Covalent semiconductors. Molecular crystals. Amorphous tetrahedrally bonded solids. Amorphous chalcogenides. Polymeric photoconductors. Non-polar liquids. Photoelectronic semiconductor devices. Electrophotography.
J. Mort, Damodar Mangalore Pai,
1976
2
Far Infrared Transmission and
Photoconductivity on Single ...
Steffen Holland. magnetic field up to 12 T, if cooled to 1.7 K, up to 14 T. In a
second experimental setup we use, instead of a VTI, a vacuum can with He
exchange gas. The lowest sample temperature reachable is estimated to ≈ 1.8 K
- 2 K.
Photoconductivity* 12.1.1. Basic Concepts When radiation of sufficient quantum
energy is absorbed by almost any semiconductor or insulator, an increase of
electrical conductivity, called photoconductivity, results. Photoconductors are
useful ...
Karl Lark-Horovitz, Marton, Kati, Vivian Annabelle Johnson,
1959
4
Springer Handbook of Electronic and Photonic Materials
involving steady state photoconductivity (SSPC), where the focus is on stationary
photocurrent levels, and a second one involving transient effects (TPC) where the
time evolution of the photocurrent is studied. We will use this division in our ...
Safa Kasap, Peter Capper,
2007
5
Semiconductor Materials
PHOTOCONDUCTIVITY AND PHOTO-EMF Photoconductivity of a substance is
the change of its electrical conductivity as a result of absorption of
electromagnetic radiation. The absorption of a photon may transfer an electron
from the valence ...
6
Transport, Correlation, and Structural Defects
3.2 The influence of tunnel recombinaton on the hopping photoconductivity
Photoconductivity is the conductivity change caused by illumination. It is a very
wide field of semiconductors physics which covers numerous problems
concerning the ...
7
Thin-Film Silicon Solar Cells
2.4.5 Photoconductivity We shall now look at the conductivity of an amorphous (
or microcrystalline) silicon layer in the co-planar configuration of Figure 2.16
under illumination, when the densities of free carriers nf and pf are no longer
given by ...
8
Conjugated Oligomers, Polymers, and Dendrimers : From ...
The carrier generation mechanism in PPV has been addressed by studying the
transient photoconductivity and the photoluminescence as a function of the
external electric field, E, in samples oriented by tensile drawing. [15] The
transient ...
9
Handbook of Advanced Electronic and Photonic Materials and ...
Photoconductivity Photoconductivity has also proven to be an important method
for providing fundamental information regarding the nature of the photoexcitation
in conjugated polymers [1229-1231]. In fact, photoconductivity is a quite complex
...
10
Recombination Lifetime Measurements in Silicon
Hidehisa Hashizume1, Shingo Sumie2, and Yasuhide Nakai2 CARRIER
LIFETIME MEASUREMENTS BY MICROWAVE PHOTOCONDUCTIVITY DECAY
METHOD REFERENCE: Hashizume, H., Sumie, S., and Nakai, Y., "Carrier
Lifetime ...
Dinesh C. Gupta, Fred R. Bacher,
1998
BARANGAN BERITA YANG TERMASUK TERMA «PHOTOCONDUCTIVITY»
Ketahui apa yang diterbitkan oleh akhbar nasional dan antarabangsa dan cara istilah
photoconductivity digunakan dalam konteks perkara berita berikut.
Tracing the Chester Carlson Story from Photocopier to TV Set
... position also on the résumé of Albert Einstein), Carlson found what he was looking for in the then little-explored science of photoconductivity. «What They Think, Jul 15»
Quantum computing: Silicon qubits
As the researchers detected the photoconductivity ΔI of the sample with respect to the delay between the two pulses (τ12), they observed ... «Nature.com, Apr 15»
Mechanical Televisor the invention that brought us Television
Willoughby Smith discovered the photoconductivity of the element selenium in 1873, laying the groundwork for the selenium cell phototube ... «3D Car Shows, Mac 15»
Shining a burst of light on melanin interactions
The lead researcher, Adil Haseeb, wants to better understand the conductivity and photoconductivity responses of melanin in different physical ... «Nature Middle East, Mac 15»
Trion-induced negative photoconductivity in a 2D semiconductor
Single-layer molybdenum disulfide, a strictly 2D semiconductor, exhibits negative photoconductivity caused by the formation of trions under ... «SPIE Newsroom, Jan 15»
Using FT-IR for In-Situ Monitoring of Polyurethane Synthesis
... a measurement technique which generates an infrared spectrum of emission, absorption, Raman scattering or photoconductivity of a liquid, ... «Azom.com, Dis 14»
New mechanism of photoconduction could lead to next-generation …
"Although negative photoconductivity has been reported in some semiconducting systems, it always arises from extrinsic factors, such as ... «Phys.Org, Okt 14»
Light Pulses Control Graphene Behavior
“Our experiment reveals that the cause of photoconductivity in graphene is very different from that in a normal metal or semiconductor,” said MIT ... «Photonics.com, Ogo 14»
Light pulses control graphene's electrical behavior
"Our experiment reveals that the cause of photoconductivity in graphene is very different from that in a normal metal or semiconductor," Frenzel ... «Phys.Org, Jul 14»
Tweaking Nanomaterials With Lasers
Interestingly, they also found that the electrical conductivity and photoconductivity of the modified material had increased by more than ten ... «Asian Scientist Magazine, Jul 14»