<> "The repository administrator has not yet configured an RDF license."^^ . <> . . . "Remote temperature mapping of high-power InGaN/GaN MQW\r\nflip-chip design LEDs"^^ . "We report on the study of heat 2D-distribution in InGaN LEDs with the stress made on local device overheating and\r\ntemperature gradients inside the structure. The MQW InGaN/GaN/sapphire blue LEDs are designed as bottom emitting\r\ndevices where light escapes the structure through the transparent GaN current spreading layer and sapphire substrate, whereas the LED structure with high-reflectivity Ni/Ag p-contact is bonded to the thermally conductive Si submount by a flip-chip method. The measurements are performed with an IR microscope operating in a time-resolved mode (3-5 μm spectral range, <20 μm spatial and 10 μs temporal resolution), while scanning a heat emission map through a transparent sapphire substrate. We show how current crowding (which is difficult to avoid) causes a local hot region near the n-contact pads and affects the performance of the device at a high injection level."^^ . "2005" . . "5941" . . "International society for optics and photonics"^^ . . . "Proceedings of SPIE"^^ . . . "9780819459466" . . . . . . . . . . . . . . . . "А. L."^^ . "Zakheіm"^^ . "А. L. Zakheіm"^^ . . "O. Y."^^ . "Malyutenko"^^ . "O. Y. Malyutenko"^^ . . "A. V."^^ . "Zinovchuk"^^ . "A. V. Zinovchuk"^^ . . "V. K."^^ . "Malyutenko"^^ . "V. K. Malyutenko"^^ . . . . . . "Remote temperature mapping of high-power InGaN/GaN MQW\r\nflip-chip design LEDs (Text)"^^ . . . "GetPDFServletfiletype.pdf"^^ . . . "Remote temperature mapping of high-power InGaN/GaN MQW\r\nflip-chip design LEDs (Інший)"^^ . . . . . . "lightbox.jpg"^^ . . . "Remote temperature mapping of high-power InGaN/GaN MQW\r\nflip-chip design LEDs (Інший)"^^ . . . . . . "preview.jpg"^^ . . . "Remote temperature mapping of high-power InGaN/GaN MQW\r\nflip-chip design LEDs (Інший)"^^ . . . . . . "medium.jpg"^^ . . . "Remote temperature mapping of high-power InGaN/GaN MQW\r\nflip-chip design LEDs (Інший)"^^ . . . . . . "small.jpg"^^ . . "HTML Summary of #8341 \n\nRemote temperature mapping of high-power InGaN/GaN MQW \nflip-chip design LEDs\n\n" . "text/html" . . . "QC Physics"@en . "QC Фізика"@uk . .