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This study examined the direct effect of individual variables (self-esteem, creative self-efficacy, intrinsic motivation and extrinsic motivation) on the Research and Development (R&D) engineers’ creativity. The data were analysed based on questionnaires returned by 130 R&D engineers attached to fifteen Electrical and Electronic (E&E) firms with R&D department in Penang, Malaysia. The convenience sampling method was employed in getting the samples. The results posited that all individual variables were positively related to R&D engineers’ creativity. The results also reported that there is no significant difference in R&D engineers’ creativity between contract employment type and permanent employment type. The theoretical and practical implications of the study as well as suggestion for future studies were also discussed.
High efficiency 650 nm resonant cavity
light emitting diodes (RCLEDs) with a cladding layer cavity are reported. The
epitaxial structure is grown with a metal-organic chemical vapor deposition
(MOCVD) system. Al 0.5Ga 0.5 As/Al As is used for the distributed Bragg reflectors (DBRs), and
GaInP/AlGaInP multiple-quantum wells for the active region. Two RCLED samples
have been fabricated, one with a cladding layer cavity and the other without.
Experimental results show that the cladding layer cavity can improve the
internal quantum efficiency effectively, so that an external quantum efficiency
of 7.4% at 20 mA is reached. Meanwhile, the sample with cladding layer cavity
also shows a spectral stability as the injected current changing from 20 mA to