The Effect of Inorganic/Organic Hybrid Quantum-Well Structure on Efficient White Organic Light Emitting Devices
In this study, the effect of MQW structures adopting inorganic material (sodium fluoride) has been demonstrated. Brightness, current efficiency was significantly enhanced with a NaF/NPB MQW structure being inserted. The admittance spectroscopy was measured to explain the different mechanism of reducing hole between organic/organic inorganic/organic MQW
Organic light-emitting diodes with improved hole-electron balance by using copper phthalocyanine/aromatic diamine multiple quantum wells
Organic light-emitting diodes (OLEDs) with multiple-quantum-well structures, which consist of copper phthalocyanine and N,N′-bis-(1-naphthyl)-N,N′-diphenyl-1,1′ biphenyl 4, 4′-diamine, have been fabricated. The effect of the MQW structure upon the performance of OLEDs with tris(8-hydroxyquinoline) aluminum as the emitting material has been investigated. Compared with the luminous efficiency of the conventional diode with the MQW number of 0, that of the diode with the MQW number of 4 has been sharply increased up to 10.8 cd/A. Such an improvement in the device performance was attributed to the improved hole-electron balance, which can be further attributed to the introduction of the MQW structure.
The identity and self-perception of artists-managers
Manager’s and artist’s professional identities seem to be opposite, but there are many indications that this understanding is not justified in reality. Despite the contradictions, these two identities can intersect. The paper aims to define the characteristics of the artists-managers’ identity. The object of the study was qualitative research (n = 22) conducted in the form of in-depth interviews with key informants from the international environment. The practical objective was to verify common and contradicted features of the artist’s and the manager’s identities among artists-managers to understand the possibilities of reducing the intra-psychic tensions and ways of fruitful paradoxical thinking among managers and negative consequences for personalities and organizations. The study reveals common characteristics between the artist’s and manager’s identities and describes artists-managers’ identity. Although artists-managers experience diversity between both identities, they do not see them as contrary; they use paradoxical thinking, being experts in using personal seemingly contradictory characteristics to achieve outstanding performance. Acting in paradoxical contexts and focusing on the positive aspects of seemingly contradictory personal qualities, they find nonstandard creative solutions. By trying to understand and implement their self-construction, there is the possibility to reduce the intra-psychic tensions and negative consequences of seemingly opposite identities or goals among individuals in organizations. There is a synergy between the manager’s and artist’s identities. Understanding the nature and attributes of artistic creativity, aesthetic theories and the phenomenon of artist-manager’s identity can be a valuable contribution to the practice of management and organizational life.