[OLED 디스플레이공학] 흡광도 측정 및 AMOLED의 유기화합물 심층분석

소개글

경희대학교 정보디스플레이학과 출신으로 OLED 실험 바탕으로 작성하였습니다.
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목차

1. Abstract
2. Introduction
3. Experiment

본문내용

1. Abstract
Alq3 / Rubrene has been widely used as an emitter for organic electroluminescent devices. Using the UV-Visible spectrophotometer, we investigated the absorption spectra properties of Alq3 / Rubrene. Also we calculated the band gap from the absorption spectra and knew approximately which transition to occur through the molar absorptivity. Our experimental result shows that the band gap of Alq3 / Rubrene has different values and it have inherent absorption spectra.

<중 략>

The molar absorptivities for peaks associated with excitation to n→π* state are generally low value and has the longer wavelength (low energy). In case of π→π* transitions, ε values normally are high and it has the short wavelength (high energy).
Following the experimental result, the 370nm region of Alq3 and the 500nm of Rubrene that have low molar absorptivity value are considered the n→π* transitions. Although the absorption peaks of under 300nm is not smooth, this region is presumed the π→π* transitions. Due to ethanol used in solvent has the cutoff wavelength of 210nm, the absorption spectra of Alq3 / Rubrene is not affected by solvent.

참고 자료

Modern molecular photochemistry. Turro.
Introduction to spectroscopy 3rd. Pavia.
Principles of instrumental analysis 5th. Skoog.