Coaxial silicon nanowires as solar cells and nanoelectronic power sources.

Coaxial silicon nanowires as solar cells and nanoelectronic power sources. Research Abstract Details 

Research Abstract Table of Contents

Jump to the:

Coaxial silicon nanowires as solar cells and nanoelectronic power sources. Abstract Text:

Bozhi Tian,Xiaolin Zheng,Thomas J Kempa,Ying Fang,Nanfang Yu,Guihua Yu,Jinlin Huang,Charles M Lieber,

Solar cells are attractive candidates for clean and renewable power; with miniaturization, they might also serve as integrated power sources for nanoelectronic systems. The use of nanostructures or nanostructured materials represents a general approach to reduce both cost and size and to improve efficiency in photovoltaics. Nanoparticles, nanorods and nanowires have been used to improve charge collection efficiency in polymer-blend and dye-sensitized solar cells, to demonstrate carrier multiplication, and to enable low-temperature processing of photovoltaic devices. Moreover, recent theoretical studies have indicated that coaxial nanowire structures could improve carrier collection and overall efficiency with respect to single-crystal bulk semiconductors of the same materials. However, solar cells based on hybrid nanoarchitectures suffer from relatively low efficiencies and poor stabilities. In addition, previous studies have not yet addressed their use as photovoltaic power elements in nanoelectronics. Here we report the realization of p-type/intrinsic/n-type (p-i-n) coaxial silicon nanowire solar cells. Under one solar equivalent (1-sun) illumination, the p-i-n silicon nanowire elements yield a maximum power output of up to 200 pW per nanowire device and an apparent energy conversion efficiency of up to 3.4 per cent, with stable and improved efficiencies achievable at high-flux illuminations. Furthermore, we show that individual and interconnected silicon nanowire photovoltaic elements can serve as robust power sources to drive functional nanoelectronic sensors and logic gates. These coaxial silicon nanowire photovoltaic elements provide a new nanoscale test bed for studies of photoinduced energy/charge transport and artificial photosynthesis, and might find general usage as elements for powering ultralow-power electronics and diverse nanosystems.

Coaxial silicon nanowires as solar cells and nanoelectronic power sources. Publishing Authors By Initials

B Tian,X Zheng,TJ Kempa,Y Fang,N Yu,G Yu,J Huang,CM Lieber,

For similar abstracts research abstracts see: abstracts research

PUBMED ID PMID:

MEDLINE DATE:

Coaxial silicon nanowires as solar cells and nanoelectronic power sources. Journal Published:

PUBLICATION TYPE: Research Support, U.S. Gov't,

Journal: Nature

VOLUME: 449

Page Numbers: 885-9

Journal Abbreviation: Nature

ISSN: 1476-4687

DAY: 18

MONTH: Oct

YEAR: 2007

Coaxial silicon nanowires as solar cells and nanoelectronic power sources. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 410462

Coaxial silicon nanowires as solar cells and nanoelectronic power sources. Keywords Mesh Terms:

KEYWORDS:

MESH TERMS:

Chemical & Substance for Abstract: Coaxial silicon nanowires as solar cells and nanoelectronic power sources. Information

Substance Name:

Registry Number:

Grant and Affiliation Information for Coaxial silicon nanowires as solar cells and nanoelectronic power sources.

AFFILIATION: Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, USA.

Country: England

AGENCY:

GRANT:

ACRONYM:

MEDLINETA: Nature

REFSOURCE:

DATABASENAME:

ACCESSION NUMBER:

Number Hits: 0

Coaxial silicon nanowires as solar cells and nanoelectronic power sources Related Publications

• A helper-dependent capsid-modified adenovirus vector expressing adeno-associated virus rep78 mediates site-specific integration of a 27-kilobase transgene cassette.
• A new group B adenovirus receptor is expressed at high levels on human stem and tumor cells.
• Baculovirus-based Vaccination Vectors Allow for Efficient Induction of Immune Responses Against Plasmodium falciparum Circumsporozoite Protein.
• Caries incidence reduction by unsupervised use of 27.5% ammonium therapy dentifrice.
• Coaxial silicon nanowires as solar cells and nanoelectronic power sources.
• Combination of tumor site-located CTL-associated antigen-4 blockade and systemic regulatory T-cell depletion induces tumor-destructive immune responses.
• Comparison of adenoviruses from species B, C, e, and f after intravenous delivery.
• DENTAL CARE OF THE PREGNANT PATIENT.
• DLPC and SAMe prevent alpha1(I) collagen mRNA up-regulation in human hepatic stellate cells, whether caused by leptin or menadione.
• DNA content/ploidy as prognostic factors in prostate cancer.
• Dorsal transfer of the brachioradialis to the flexor pollicis longus enables simultaneous powering of key pinch and forearm pronation.
• Extent to which hairpin opening by the Artemis:DNA-PKcs complex can contribute to junctional diversity in V(D)J recombination.
• High stiffness of human digital flexor tendons is suited for precise finger positional control.
• In vitro evaluation of flow divertors in an elastase-induced saccular aneurysm model in rabbit.
• InAs/InP radial nanowire heterostructures as high electron mobility devices.
• Increased efficacy and decreased systemic-effects of botulinum toxin A injection after active or passive muscle manipulation.
• Intraoperative muscle measurements reveal a relationship between contracture formation and muscle remodeling.
• Intraoperative single-site sarcomere length measurement accurately reflects whole-muscle sarcomere length in the rabbit.
• Leptin represses matrix metalloproteinase-1 gene expression in LX2 human hepatic stellate cells.
• Mechanism of R-loop formation at immunoglobulin class switch sequences.
• Metabolism of ethanol and associated hepatotoxicity.
• Nanoelectronics from the bottom up.
• New serotypes of adenoviral vectors.
• Passive muscle-tendon amplitude may not reflect skeletal muscle functional excursion.
• Relationship between muscle stress and intramuscular pressure during dynamic muscle contractions.
• Structural and regulatory roles of muscle ankyrin repeat protein family in skeletal muscle.
• Synthesis of CdS and ZnS nanowires using single-source molecular precursors.
• The mechanism of human nonhomologous DNA end joining.
• Visualization of carrier depletion in semiconducting nanowires.
• [Comparison of the inhibitory effects of atropine & 2 synthetic parasympatholytics of the postinsulin & basal gastric secretion in man.]