Fabrication of BCNO-composite thin film phosphors and controlling its thickness

Mahen, Ea Cahya Septia; Nuryadin, Bebeh Wahid; Iskandar, Ferry; Abdullah, Mikrajuddin; Khairurrijal, Khairurrijal

doi:10.1063/1.4820303

Cited by 1 publication

(1 citation statement)

References 12 publications

(18 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Currently, commercial optical spectrometers employ the diffraction pattern principle [3]. Optical spectrometers (especially UV-visible spectrometers) have been used in many applications, such as investigating semiconductor energy gaps, measuring particle sizes (or thin film thicknesses), and determining the concentration of solutions in industry, research institutions, or educational laboratories [4].…”

Section: Introductionmentioning

confidence: 99%

Do it yourself: optical spectrometer for physics undergraduate instruction in nanomaterial characterization

et al. 2017

View full text Add to dashboard Cite

In this paper, we report on a homemade optical spectrometer using diffraction grating and image processing techniques. This device was designed to produce spectral images that could then be processed by measuring signal strength (pixel intensity) to obtain the light source, transmittance, and absorbance spectra of the liquid sample. The homemade optical spectrometer consisted of: (i) a white LED as a light source, (ii) a cuvette or sample holder, (iii) a slit, (iv) a diffraction grating, and (v) a CMOS camera (webcam). In this study, various concentrations of a carbon nanoparticle (CNP) colloid were used in the particle size sample test. Additionally, a commercial optical spectrometer and tunneling electron microscope (TEM) were used to characterize the optical properties and morphology of the CNPs, respectively. The data obtained using the homemade optical spectrometer, commercial optical spectrometer, and TEM showed similar results and trends. Lastly, the calculation and measurement of CNP size were performed using the effective mass approximation (EMA) and TEM. These data showed that the average nanoparticle sizes were approximately 2.4 nm and 2.5 ± 0.3 nm, respectively. This research provides new insights into the development of a portable, simple, and low-cost optical spectrometer that can be used in nanomaterial characterization for physics undergraduate instruction.

show abstract

Section: Introductionmentioning

confidence: 99%