photovoltaic effect in ideal carbon nanotube

What is the photovoltaic performance of a single-walled carbon nanotube (SWNT)?

As a consequence, the photovoltaic performance of both p -single-walled carbon nanotube (SWNT)/ n -Si and n -SWNT/ p -Si heterojunction solar cells using MoO x and ZnO layers is improved, resulting in very high photovoltaic conversion efficiencies of 17.0 and 4.0%, respectively.

:,,, Abstract: Due to the excellent electrical properties and unique one-dimensional nanostructure, carbon nanotubes (CNTs) are widely regarded as an ideal material for fabricating photovoltaic devices.Some kinds of latest novel CNT photovoltaic devices were reviewed including single/multiple CNT tubes

Carbon nanotubes in photovoltaics

Photovoltaic effect can be achieved in ideal single wall carbon nanotube (SWNT) diodes. Individual SWNTs can form ideal p-n junction diodes. [ 3 ] An ideal behavior is the theoretical limit of performance for any diode, a highly sought after goal in all electronic materials development.

Doping-free carbon nanotube optoelectronic devices

Semiconducting carbon nanotubes (CNTs) possess outstanding electrical and optical properties because of their special one-dimensional (1D) structure. CNTs are direct bandgap materials, which makes them ideal for use in optoelectronic devices, e.g. light emitters and light detectors. Excitons determine their light absorption and light emission processes due

[PDF] Carbon nanotube p-n junction diodes | Semantic Scholar

We demonstrate a single-walled carbon nanotube p-n junction diode device. The p-n junction is formed along a single nanotube by electrostatic doping using a pair of split gate electrodes. By biasing the two gates accordingly, the device can function either as a diode or as an ambipolar field-effect transistor. The diode current–voltage characteristics show forward

Single carbon nanotube photovoltaic device

Here we present photocurrent measurements on a single suspended carbon nanotube p-n junction. The p-n junction was induced by electrostatic doping by local gates, and the E11 and E22 resonances in the nanotube could be probed using photocurrent spectroscopy. Current-voltage characteristics were recorded, revealing an enhanced optoelectronic response

Can carbon nanotubes be used as photovoltaic materials?

Indeed, a variety of photovoltaic devices using carbon nanotubes such as carbon nanotube-based organic solar cells 16, photoelectrochemical cells 17, dye-sensitized solar cells 18 and carbon nanotube/Si solar cells 19, 20 have been reported. Furthermore, the importance of carbon nanotubes as photovoltaic materials is continually increasing.

Carbon Nanotubes for Solar Cells and Photovoltaics

Carbon Nanotubes as an Alternative to ITO. CNTs have exceptional electrical and physical characteristics besides conductivity of 1 to 3 × 10 6 (S/m) as well as electron mobility of 100,000 cm 2 /V.s. (Novoselov et al. 2004; Avouris et al. 2010).CNTs are regarded as excellent transparent conducting electrodes (TCEs) in photovoltaic devices applications considering

How many volts can a carbon nanotube produce?

In one example, more than 1.0 V is generated from a 10-μm-long carbon nanotube with a single-cell photovoltage of ∼ 0.2 V. In a typical photovoltaic device, a built-in field is essential for the efficient separation of photon-excited electron–hole pairs and for the observation of photovoltaic effects 14.

Photovoltaic Response of Carbon Nanotube-Silicon

Photovoltaic effect in ideal carbon nanotube diodes. Article. Aug 2005; APPL PHYS LETT; J. U. Lee; We demonstrate that individual single-walled carbon nanotubes (SWNTs) can form ideal p-n junction

Are single wall carbon nanotubes a good photovoltaic material?

Single wall carbon nanotubes possess a wide range of direct bandgaps matching the solar spectrum, strong photoabsorption, from infrared to ultraviolet, and high carrier mobility and reduced carrier transport scattering, which make themselves ideal photovoltaic material.

p-Type Single-Wall Carbon Nanotube Network on n-Type Si

materials for highly active photovoltaic devices. 7. Photovoltaic effect can be achieved in carbon nanotube based p-n junction diodes. 8. Under illumination, the SWNT diodes demonstrate significant power conversion efficiencies owing to enhanced properties of an ideal diode. A single device element that contains an ensemble of

A p-i-n junction diode based on locally doped carbon nanotube

The p-n junction diode is the building block of integrated circuits and photovoltaic devices. The semiconducting single-walled carbon nanotube (SWNT) is an ideal candidate for constructing the

Carbon Nanotubes for Photovoltaics: From Lab to Industry

The use of carbon nanotubes (CNTs) in photovoltaics could have significant ramifications on the commercial solar cell market. Three interrelated research directions within the field are crucial to the ultimate success of this endeavor; 1) separation, purification, and enrichment of CNTs followed by 2) their integration into organic solar cells as a photosensitive element or 3) in

Photovoltaic effect in ideal carbon nanotube diodes

We demonstrate that individual single-walled carbon nanotubes (SWNTs) can form ideal p-n junction diodes. An ideal behavior is the theoretical limit of performance for any diode, a highly sought after goal in all electronic materials development. We further elaborate on their properties by examining photovoltaic effects, an application where its performance is intimately related to

Ideal pn Diodes from Single-Walled Carbon Nanotubes for Use

Here, we demonstrate a new approach to improving the efficiency of solar cells beyond the detailed balance limit by gate modulation of the diode''s ideality factor in ideal carbon nanotube pn diodes.

Intramolecular p-i-n junction photovoltaic device based on

Photovoltaic effect in ideal carbon nanotube diodes. J. U. Lee. Physics, Materials Science. 2005; We demonstrate that individual single-walled carbon nanotubes (SWNTs) can form ideal p-n junction diodes. An ideal behavior is the theoretical limit of performance for any diode, a highly sought

Applications of carbon materials in photovoltaic solar cells

A carbon-based photoelectrochemical solar cell from p-type a-C obtained from camphor has been developed for the first time [123]. Fullerene (C 60) Photovoltaic effect in ideal carbon nanotube diodes. Appl. Phys. Lett., 87

Carbon Nanotube Works as Ideal Diode; Exhibits Photovoltaic Effect

The recent discovery of a photovoltaic effect in the carbon nanotube diode device will only help further the ongoing research efforts. Diodes are fundamental semiconductor devices that form the

Spin-coated single walled carbon nanotubes confirms p–n

Lee JU (2005) Photovoltaic effect in ideal carbon nanotube diodes. Appl Phys Lett 87(1–3):073101. Article Google Scholar Lee JU, Gipp PP, Heller CM (2004) Carbon nanotube p–n junction diodes. Appl Phys Lett 85:145–147. Article Google Scholar Li A, Khosla A; Drewbrook C, Gray BL (2011) Fabrication and testing of thermally responsive

Photocurrent generation in semiconducting and metallic carbon nanotubes

The fundamental mechanism underlying photocurrent generation in carbon nanotubes 1,2,3 has long been an open question. In photocurrent generation, the temperature of the photoexcited charge

GE Global Research Develops ''''Ideal'''' Carbon Nanotube

of a photovoltaic effect in the carbon nanotube diode device will only help further the ongoing research efforts. Diodes are fundamental semiconductor devices that form the basic

Nanowelded carbon-nanotube-based solar microcells.

Photovoltaic effect in ideal carbon nanotube diodes. J. U. Lee. Physics, Materials Science. 2005; We demonstrate that individual single-walled carbon nanotubes (SWNTs) can form ideal p-n junction diodes. An ideal behavior is the theoretical limit of performance for any diode, a highly sought Expand. 262.

Intramolecular p-i-n junction photovoltaic device based on selectively

A p-i-n junction photovoltaic device based on selectively doped CNTs is investigated. • It is demonstrated that the OA and PEI can dope SWCNTs into stable p-and n-type.. The devices behave as gate-dependent diodes, with a maximum rectification ratio >10 3.. The devices exhibit good photovoltaic effect with a V oc of 0.41 V and a α of ~73%.

Doping-free fabrication of carbon nanotube thin-film diodes and

Random networks of single-walled carbon nanotubes (SWCNTs) were have been grown by chemical vapor deposition on silicon wafers and used for fabricating field-effect transistors (FETs) using symmetric Pd contacts and diodes using asymmetrical Pd and Sc contacts. For a short channel FET or diode with a channel length of about 1 μm or less, the

Intramolecular p-i-n junction photovoltaic device based on selectively

Photovoltaic effect in ideal carbon nanotube diodes. Appl. Phys. Lett. (2005) A. Fujiwara et al. Photoconductivity in semiconducting single-walled carbon nanotubes. Jpn. J. Appl. Phys. (2001) N.M. Gabor et al. Extremely efficient multiple electron-hole pair generation in carbon nanotube photodiodes.

Doping-Free Fabrication of Carbon Nanotube Thin-Film Diodes

<p>Random networks of single-walled carbon nanotubes (SWCNTs) were have been grown by chemical vapor deposition on silicon wafers and used for fabricating field-effect transistors (FETs) using symmetric Pd contacts and diodes using asymmetrical Pd and Sc contacts. For a short channel FET or diode with a channel length of about 1 μm or less, the device works in the

Can carbon nanotube-based solar cells improve photovoltaic performance?

Wang F, Kozawa D, Miyauchi Y, Hiraoka K, Mouri S, Ohno Y, Matsuda K (2015a) Considerably improved photovoltaic performance of carbon nanotube-based solar cells using metal oxide layers. Nat Commun 6 (1):1–7

Performance and Photovoltaic Response of Polymer-Doped Carbon Nanotube

Photovoltaic effects are studied for asymmetrically contacted single-walled carbon nanotube (SWCNT) barrier-free bipolar diode (BFBD) under infrared laser illumination.