Will we run out of certain forms of energy, such as oil, and what are the replacement options? How d...
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The world faces monumental challenges of ensuring energy supply can meet ever growing needs, while u...
The world faces monumental challenges of ensuring energy supply can meet ever growing needs, while u...
Welcome to CRWENewswire, Stocks to Watch. I am Shalika Jayasekera. Orion Energy Systems Incorporate...
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Views: (2009) Date: (Publication Date: June 2009) Pages: () |
Abstract: Abstract In this paper, we developed a series of novel arylamino-containing spiro triplet state host materials for green and blue phosphorescent emitters. With high enough energy gap and compatible HOMO, LUMO levels, we demonstrated the green PHOLED with a low driving voltage of 2.5 V and a high power efficiency of 38.5 lm/W. We also demonstrated blue PHOLED with a very low driving voltage of 3.0 V and a current efficiency of 9.2 cd/A.