The most downloaded articles from
ScienceDirect in the last 90 days.
November 2012
Jan P.F. Lagerwall | Giusy Scalia
Liquid crystals constitute a fascinating class of soft condensed matter characterized by the counterintuitive combination of fluidity and long-range order. Today they are best known for their exceptionally...
November 2014
Takashi Minemoto | Masashi Murata
The impact of the work function of a metal back contact on lead methylammonium tri-iodide based perovskite solar cells without hole transport material (HTM) was analyzed using device simulation. The...
May 2011
C.D. Lokhande | D.P. Dubal | Oh-Shim Joo
Supercapacitors have been known for over fifty years and are considered as one of the potential energy storage systems. Research into supercapacitors is presently based primarily on their mode of energy...
20 July 2013
Hongsik Choi | Changwoo Nahm | Jongmin Kim | Chohui Kim | Suji Kang | Taehyun Hwang | Byungwoo Park
Dye- and quantum-dot-sensitized solar cells have attracted tremendous attention as one of the potential low-cost alternatives for p–n junction silicon solar cells. However, the conversion efficiencies...
March 2013
Jaeyoung Lee | Beomgyun Jeong | Joey D. Ocon
Oxygen electrocatalysis that we first defined is considered as the most important phenomenon in almost all electrochemical industries because it is the most sluggish reaction that governs the overall...
March 2011
S.M. Pawar | B.S. Pawar | J.H. Kim | Oh-Shim Joo | C.D. Lokhande
Presently nanocrystalline materials have opened a new chapter in the field of electronic applications, since material properties could be changed by changing the crystallite size and/or thickness of...
March 2014
Seul Gi Lee | Jongmin Kim | Huyn Suk Woo | Yongcheol Jo | A.I. Inamdar | S.M. Pawar | Hyung Sang Kim | Woong Jung | Hyun Sik Im
We fabricate a Cu2ZnSnS4 (CZTS) absorber layer, by using single step electrodeposition of CZTS precursor, deposited at −1.05 V, followed by high temperature annealing in a sulfur atmosphere. X-ray diffraction...
August 2014
Jan Seidel | Lukas M. Eng
Light matter interactions in nanoscale ferroelectric materials have received growing interest over the last years due to new developments in scientific instrumentation and novel materials that allow...
May 2014
Sunghyun Uhm | Young Dok Kim
Carbon dioxide is one of the greatest concerns worldwide, since it is not only a major greenhouse gas but also expected to be an important, sustainable resource for fuels and chemicals. The electrochemical...
July 2014
Y. Li | Y.L. Pei | R.Q. Hu | Z.M. Chen | Y. Zhao | Z. Shen | B.F. Fan | J. Liang | G. Wang
We have investigated the electrical performance of amorphous indium–gallium–zinc oxide (α-IGZO) thin-film transistors with various channel thicknesses. It is observed that when the α-IGZO thickness...
14 March 2014
Jeha Kim | Ho-Sub Lee | Nae-Man Park
Using a reactive co-sputtering from Cu0.6Ga0.4 and Cu0.4In0.6 alloy targets, we prepared CuIn1−xGaxSe2 (CIGS) thin films on Mo/soda-lime glass (SLG) in association with a thermal cracker for elemental...
August 2014
Junhong Park | Myeongcheol Kim | Jeong Bin Shin | Kyung Cheol Choi
In this research, we studied a chromatic transparent silver nanowire (Ag NW) electrode using a silver nanoprism (Ag NP). Ag NW and Ag NP were produced using a chemical synthesis method (polyol method)...
September 2014
Sunghoon Park | Taeseop Hong | Jihwan Jung | Chongmu Lee
ZnO/WO3 core–shell nanowires were synthesized by thermal evaporation of a mixture of ZnO and graphite powders (ZnO:C = 1:1) followed by sputter-deposition of WO3. The sensing properties of multiple...
July 2010
G. Ko | H.-Y. Kim | J. Ahn | Y.-M. Park | K.-Y. Lee | J. Kim
In this study, we demonstrated that graphene could selectively absorb/desorb NOx molecules at room temperature. Chemical doping with NO2 molecules changed the conductivity of the graphene layers, which...
February 2014
Dong Hyup Jeon
The thermal behavior of lithium ion battery during charge and discharge is investigated by a numerical simulation. The commercially available cylindrical 18650 battery is modeled in this study. Two...
March 2014
J. Paul Praveen | Kranti Kumar | A.R. James | T. Karthik | Saket Asthana | Dibakar Das
High performance lead (Pb)-free piezoelectric ceramics with excellent piezoelectric properties is in great demand for sensor and actuator applications. Barium zirconate titanate–barium calcium titanate...
May 2014
Sungun Wi | Jaewon Kim | Seunghoon Nam | Joonhyeon Kang | Sangheon Lee | Hyungsub Woo | Moosang Lee | Chong Ho Sonu | Taeho Moon | Byungwoo Park
The reduced graphene oxide (RGO)/carbon double-coated LiMn0.9Mg0.1PO4 (LMP) nanoplates are introduced as a cathode material for Li-ion batteries with excellent rate capability. The double coating of...
May 2014
Thuy Kieu Truong | T.N.T. Nguyen | Tran Quang Trung | Il Yung Sohn | Duck-Jin Kim | Jin-Heak Jung | N.-E. Lee
In this study, the reduced graphene oxide field-effect transistor (rGO FET) with indium tin oxide (ITO) extended gate electrode was demonstrated as a transducer for proton sensing application. In this...
November 2014
S.M. Jebreiil Khadem | Y. Abdi | S. Darbari | F. Ostovari
Graphene/ZnO hybrid was used, for the first time, to fabricate a highly selective and sensitive graphene based gas sensor by a combination of electromechanical and electrochemical characteristics of...
January 2014
Min Seong Kim | JoonGon Son | HyeongJin Lee | Heon Hwang | Chang Hyun Choi | GeunHyung Kim
Electrospinning has been widely used to produce micro/nanosized fibres. Although the method is very simple, easy, and effective for obtaining nanosized material, the fabrication of three dimensional...
October 2014
M. Saghafi | F. Mahboubi | S. Mohajerzadeh | M. Fathi | R. Holze
The capacitive properties of graphene nanoribbons (GNRs) with different reduction levels were investigated. GNRs have been synthesized through thermal reduction of oxidized GNRs in the temperature range...
April 2014
Soon Hyung Kwon | Eunji Lee | Bum-Soo Kim | Sang-Gil Kim | Byung-Jun Lee | Myung-Soo Kim | Ji Chul Jung
Carbon aerogel (CA) was prepared by a carbonization of resorcinol–formaldehyde (RF) polymer gels, and it was chemically activated with KOH to obtain activated carbon aerogel (ACA) for electrode material...
August 2014
Sang Cheol Nam | Jae Myung Lee | Volodymyr E. Pukha | Hyun Ook Seo | Young Dok Kim | Hye Jin Lee
This paper describes a simple method to create carbon anode films for potential applications to the research field of lithium batteries. Carbon films were prepared using DC magneton sputtering with...
September 2014
Tawat Suriwong | Titipun Thongtem | Somchai Thongtem
A single phase of delafossite CuAlO2 (CAO) was successfully synthesized by a 600 W microwave radiation for 20 min. The CAO sample was composed of quite distorted single-crystalline plates with 200–350 nm...
March 2014
Shao-Lin Zhang | Hyang-Hee Choi | Hong-Yan Yue | Woo-Chul Yang
We report a facile, size-controllable exfoliation process using an ultrasound-assisted liquid method to fabricate few-layer molybdenum disulfide (MoS2) nanosheets. The morphology, structure and size...