ORGANIC EL ELEMENT, AND LIGHT-EMITTING APPARATUS, IMAGE-FORMING APPARATUS, DISPLAY APPARATUS AND IMAGING APPARATUS USING THE ORGANIC EL ELEMENT
摘要
<p>Provided is an organic EL element in which emission efficiency is improved by suppressing a loss of excitation energy by a surface plasmon generated on an electrode surface. A hole transport layer is formed of a material having a refractive index of 1.20 or more and 1.65 or less at a maximum peak wavelength of a spectrum of light emitted by a light-emitting layer.</p>
