PMID- 24917699 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20140611 LR - 20211021 IS - 1931-7573 (Print) IS - 1556-276X (Electronic) IS - 1556-276X (Linking) VI - 9 IP - 1 DP - 2014 TI - Size-controllable synthesis and bandgap modulation of single-layered RF-sputtered bismuth nanoparticles. PG - 249 LID - 10.1186/1556-276X-9-249 [doi] AB - We here report a simple and efficient method to grow single-layer bismuth nanoparticles (BiNPs) with various sizes on glass substrates. Optimal conditions were found to be 200 degrees C and 0.12 W/cm(2) at a growth rate of 6 A/s, with the deposition time around 40 s. Scanning electron microscope (SEM) images were used to calculate the particle size distribution statistics, and high-resolution X-ray diffraction (XRD) patterns were used to examine the chemical interactions between BiNPs and the substrates. By measuring the transmission spectra within the range of 300 to 1,000 nm, we found that the optical bandgap can be modulated from 0.45 to 2.63 eV by controlling the size of these BiNPs. These interesting discoveries offer an insight to explore the dynamic nature of nanoparticles. FAU - Wu, Bin-Kun AU - Wu BK AD - Institute of Biomedical Engineering, National Taiwan University, Taipei 10617, Taiwan ; Department of Physics, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd, Da'an District, Taipei 10617, Taiwan. FAU - Chern, Ming-Yau AU - Chern MY AD - Department of Physics, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd, Da'an District, Taipei 10617, Taiwan. FAU - Lee, Hsin-Yen AU - Lee HY AD - Department of Physics, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd, Da'an District, Taipei 10617, Taiwan. LA - eng PT - Journal Article DEP - 20140521 PL - United States TA - Nanoscale Res Lett JT - Nanoscale research letters JID - 101279750 PMC - PMC4032870 OTO - NOTNLM OT - Bismuth OT - Nanoparticle OT - RF sputtering EDAT- 2014/06/12 06:00 MHDA- 2014/06/12 06:01 PMCR- 2014/05/21 CRDT- 2014/06/12 06:00 PHST- 2014/03/14 00:00 [received] PHST- 2014/05/09 00:00 [accepted] PHST- 2014/06/12 06:00 [entrez] PHST- 2014/06/12 06:00 [pubmed] PHST- 2014/06/12 06:01 [medline] PHST- 2014/05/21 00:00 [pmc-release] AID - 1556-276X-9-249 [pii] AID - 10.1186/1556-276X-9-249 [doi] PST - epublish SO - Nanoscale Res Lett. 2014 May 21;9(1):249. doi: 10.1186/1556-276X-9-249. eCollection 2014.