000263832 001__ 263832
000263832 005__ 20190619220203.0
000263832 022__ $$a0897-4756
000263832 022__ $$a1520-5002
000263832 02470 $$2isi$$a000456749800026
000263832 0247_ $$a10.1021/acs.chemmater.8b04610$$2doi
000263832 037__ $$aARTICLE
000263832 245__ $$aSynthesis and Size-Dependent Optical Properties of Intermediate Band Gap Cu3VS4 Nanocrystals
000263832 269__ $$a2019-01-22
000263832 260__ $$c2019-01-22
000263832 336__ $$aJournal Articles
000263832 520__ $$aIntermediate band gap semiconductors are an underex-plored class of materials with unique optical properties of interest for photovoltaic and optoelectronic applications. Herein, we synthesize highly crystalline cubic Cu3VS4 nanocrystals with tunable edge length of 9, 12, and 18 nm. Because size control is achieved for the first time for this semiconductor, particular emphasis is laid on the structural/compositional analysis, the formation mechanism, and the size dependent optical properties. The corresponding UV-vis spectra reveal three absorption peaks in the visible range, resulting from the intermediate band gap electronic structure of Cu3VS4, which blue shift with decreasing size. Density functional theory reveals these size dependent optoelectronic properties to result mostly from weak quantum confinement. The reported results pave the way toward further fundamental investigations of the physicochemical properties of intermediate band gap semiconductors in the nanoscale regime for solar energy harvesting.
000263832 650__ $$aChemistry, Physical
000263832 650__ $$aMaterials Science, Multidisciplinary
000263832 650__ $$aChemistry
000263832 650__ $$aMaterials Science
000263832 6531_ $$asemiconductor nanocrystals
000263832 6531_ $$aconversion
000263832 6531_ $$asulvanite
000263832 6531_ $$aspectrum
000263832 6531_ $$atransformations
000263832 6531_ $$ananoparticles
000263832 6531_ $$aefficiency
000263832 6531_ $$aprospects
000263832 700__ $$g273064$$aMantella, Valeria$$0250255
000263832 700__ $$aNinova, Silviya
000263832 700__ $$g262291$$aSaris, Seryio$$0250000
000263832 700__ $$g264794$$aLoiudice, Anna$$0249579
000263832 700__ $$0240228$$aAschauer, Ulrich$$g126050
000263832 700__ $$0249519$$aBuonsanti, Raffaella$$g263127
000263832 773__ $$q532-540$$k2$$j31$$tChemistry Of Materials
000263832 8560_ $$fraffaella.buonsanti@epfl.ch
000263832 909C0 $$mbeatrice.marselli@epfl.ch$$zMarselli, Béatrice$$0252068$$yApproved$$pLTP$$xU10340
000263832 909C0 $$zBorel, Alain$$xU13077$$pLNCE$$mraffaella.buonsanti@epfl.ch$$0252593
000263832 909CO $$pSTI$$particle$$ooai:infoscience.epfl.ch:263832$$pSB
000263832 961__ $$apierre.devaud@epfl.ch
000263832 973__ $$rREVIEWED$$sPUBLISHED$$aEPFL
000263832 981__ $$aoverwrite
000263832 980__ $$aARTICLE