Dataset for Characterization of ‘Cool’ and ‘Warm’ White LEDs

Authors

Edward Navarre, Southern Illinois University EdwardsvilleFollow

Document Type

Article

Publication Date

Summer 6-10-2021

Department

Chemistry

Abstract

The emission properties of “cool” and “warm” white LEDs were studied. The suitability of pulse-width modulation as a method to control LED brightness was examined. Both types of LED demonstrated emission standard deviation minima at a PWM frequency greater than 2000 Hz. The functional wavelength ranges of the LEDs were approximated using the linearity of brightness as a function of pulse-width modulation duty-cycle and the root mean squared deviation from mean for absorbance measurements. Both LED types demonstrated good stability in absorbance measurements over long operation times. The “warm” LED demonstrated a broader range of wavelengths useful for spectrophotometry. This is the dataset of the investigation.

Recommended Citation

Navarre, Edward, "Dataset for Characterization of ‘Cool’ and ‘Warm’ White LEDs" (2021). SIUE Faculty Research, Scholarship, and Creative Activity. 140.
https://spark.siue.edu/siue_fac/140