Carbon assisted synthesis of silicon nanowires

... 2003Abstract Carbon- assisted synthesis of silicon nanowires has been accomplished with silicon powders as well as solid sub-strates. The method involves heating an intimate mixture of silicon powder ... Carbon- assisted synthesis of silicon nanowires Gautam Gundiah, F.L. Deepak, A. Govindaraj, C.N.R. Rao*Chemistry and Physics of Materials Unit and CSIR Centre of Excellence in ... investi-gating carbon- assisted synthesis of SiNWs. In thisarticle, we report our important ﬁndings, whichare of relevance to the vapor–solid and oxide- assisted growth of SiNWs.2. ExperimentalThe synthesis...

Synthesis of silicon nanowires after hydrogen radical treatment

... Synthesis of silicon nanowires after hydrogen radical treatmentMinsung Jeon⁎, Koichi KamisakoDepartment of Electronic and Information Engineering, Tokyo University of Agriculture ... online 24 May 20 08Keywords: Silicon nanowires Hydrogen radicalsMetal oxide ﬁlmNanoparticles Silicon nanowires (SiNWs) were synthesized through the hydrogen radical -assisted deposition method.Voluminous ... were composed of well-crystallized silicon cores and hydrogenated amorphous outer layers.© 20 08 Elsevier B.V. All rights reserved.1. IntroductionSince the initial discovery of carbon nanotubes...

$sub diffraction laser synthesis of silicon nanowires$

sub diffraction laser synthesis of silicon nanowires

... West Lafayette, Indiana 47907.We demonstrate synthesis of silicon nanowires of tens of nanometers via laser induced chemical vapordeposition. These nanowires with diameters as small as 60 nm are ... these obstacles. Here, we demonstrate synthesis of silicon nanowires with diameters of 60 nm via laser induced chemical vapor deposition (CVD). We produce nanowires by utilizing interference between ... direction of theincident laser beam is not completely parallel to the substrate scan-ning direction, the number of nanowires can fluctuate as the front of the nanowire moves off the center of the...

$sub diffraction laser synthesis of silicon nanowires$

sub diffraction laser synthesis of silicon nanowires

Synthesis of Silicon nanowires for sensornanowires for sensorapplications

... species detection Silicon nanowires: topdown approach Silicon nanowires: top-down approach• Synthesis method• Fabrication of silicon nanowires based resistors•Fabrication of nanowires Thin ... species detection Silicon nanowires: topdown approach Silicon nanowires: top-down approach• Synthesis method• Fabrication of silicon nanowires based resistors•Fabrication of nanowires Thin ... biological) Silicon nanowires Benefits of silicon nanowires (SiNWs)Benefits of silicon nanowires (SiNWs)• High surface / volume ratio: surface phenomena predominate• Possibility of surface functionalization...

Polymer assisted synthesis of aligned amorphous silicon nanowires and their core shell structures with au nanoparticles

... con-version of diamond-like carbon phase from polymerphase [15]. TEM analysis of carbon ﬁlms prepared bythe heat-treatment of PPC above 600 °C conﬁrmed thatthe carbon pha se was composed of small carbon ... and the high dispersion of Au nanoparticles on the surface of the SiNWswithout any aggregation. The formation of the SiNWs was explained on the basis of the reaction of carbon with the native ... Polymer -assisted synthesis of aligned amorphous silicon nanowires and their core/shell structures with Au nanoparticlesXing-bin...

Growth kinetics of silicon nanowires by platinum assisted vapour–liquid–solid mechanism

... HRTEM image of Si nanowire using Au. (d) HRTEM image of Si nanowire using Pt. Both were single crystal. (e) EDS line mapping of Si nanowires using Au catalyst. (f) EDS line mapping of Si nanowires ... degrade the performance of Sinanowire devices even if it diffuses into the nanowires. Somestudies have reported on the growth of Si nanowires using Ptwith a precursor of SiH4or SiCl4[4–6]. ... Growth kinetics of silicon nanowires by platinum assisted vapour–liquid–solidmechanismH. Jeong, T.E. Park, H.K. Seong, M. Kim, U. Kim, H.J. Choi*Department of Materials Science and...

Synthesis and characterization of silicon nanowires using tin catalyst for solar cells application

... silicon nanowires were synthesized for solar cells application. Voluminous silicon nanowires were fabricated on single crystalline silicon wafer. Optical reﬂectance and solar cell efﬁciency of ... thesynthesized silicon nanowires were explored. The reﬂectance of as-synthesized silicon nanowires wasobtained approximately 5% in the short wavelength region (λb 500 nm). A short circuit current of 2.3 ... performance.Therefore, further reduction of the reﬂectance will be expected from the optimization of the synthesis conditions of SiNWs.For analysis of the electrical properties, the I–V curve of the fabricated SiNWs...

Optical spectroscopy of silicon nanowires

... shows the Raman scattering spectra of theSiNWs and crystal silicon. A very sharp andFig. 1. A typical SEM image of the morphology of aligned silicon nanowires of uniform diameter distribution ... Optical spectroscopy of silicon nanowires Jifa Qia,*, John M. Whitea, Angela M. Belchera, Yasuaki MasumotobaDepartment of Chemistry and Biochemistry, University of Texas, Welch 4.212, ... linewidth of crystalline silicon, and D is the size of crystal. Eq. (1) was used to ﬁtthe Raman spectra. The continuous line in Fig. 3shows the best-ﬁt result, and the average crystalsize of nanowires...

Temperature dependence of morphology and diameter of silicon nanowires synthesized by laser ablation

... oxideexceeded the growth rate of crystal silicon, outerlayer of silicon oxide will surround the crystal sil-icon. As a result, the growth of crystal silicon ceased and silicon oxide of outer layer coalescedtogether ... Thepeculiar feature of the branch suggests that theremay exist a competitive growth between crystal silicon core and outer layer of silicon oxide. Whenthe forming rate of outer layer of silicon oxideexceeded ... when thediameter of tip was large enough. Moreover, abifurcation phenomenon of the silicon nanowires was also observed, which may be attributed torenucleation of the crystal silicon in growth...

Xem thêm

Từ khóa: the synthesis of the modified tetrapyrrole known asd1haem requires several dedicated proteins which are coded for by a set of genes that are often found adjacent to the structural gene synthesis of the superheavy the code offers a synthesis of the requirements an experifenton synthesis of russian synthesis of the state of the art meaning synthesis of superheavy elements Báo cáo quy trình mua hàng CT CP Công Nghệ NPV Nghiên cứu tổ chức pha chế, đánh giá chất lượng thuốc tiêm truyền trong điều kiện dã ngoại Một số giải pháp nâng cao chất lượng streaming thích ứng video trên nền giao thức HTTP Giáo án Sinh học 11 bài 13: Thực hành phát hiện diệp lục và carôtenôit Giáo án Sinh học 11 bài 13: Thực hành phát hiện diệp lục và carôtenôit ĐỒ ÁN NGHIÊN CỨU CÔNG NGHỆ KẾT NỐI VÔ TUYẾN CỰ LY XA, CÔNG SUẤT THẤP LPWAN NGHIÊN CỨU CÔNG NGHỆ KẾT NỐI VÔ TUYẾN CỰ LY XA, CÔNG SUẤT THẤP LPWAN SLIDE Phối hợp giữa phòng văn hóa và thông tin với phòng giáo dục và đào tạo trong việc tuyên truyền, giáo dục, vận động xây dựng nông thôn mới huyện thanh thủy, tỉnh phú thọ Trả hồ sơ điều tra bổ sung đối với các tội xâm phạm sở hữu có tính chất chiếm đoạt theo pháp luật Tố tụng hình sự Việt Nam từ thực tiễn thành phố Hồ Chí Minh (Luận văn thạc sĩ)Nghiên cứu, xây dựng phần mềm smartscan và ứng dụng trong bảo vệ mạng máy tính chuyên dùng Nghiên cứu khả năng đo năng lượng điện bằng hệ thu thập dữ liệu 16 kênh DEWE 5000 Tìm hiểu công cụ đánh giá hệ thống đảm bảo an toàn hệ thống thông tin Thơ nôm tứ tuyệt trào phúng hồ xuân hương Tổ chức và hoạt động của Phòng Tư pháp từ thực tiễn tỉnh Phú Thọ (Luận văn thạc sĩ)Quản lý nợ xấu tại Agribank chi nhánh huyện Phù Yên, tỉnh Sơn La (Luận văn thạc sĩ)BT Tieng anh 6 UNIT 2 chuong 1 tong quan quan tri rui ro Nguyên tắc phân hóa trách nhiệm hình sự đối với người dưới 18 tuổi phạm tội trong pháp luật hình sự Việt Nam (Luận văn thạc sĩ)Giáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vật Giáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vật