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Perovskite solar cell device developed by Yamagata University

Professor Kenshi Sano and his team at Yamagata University have developed a perovskite solar cell with a structure called "reverse type" fabricated by a low-temperature formation process of 150 degrees C or lower. So far, the conversion efficiency of the low-temperature formation and inverse-type structure has been 17-19%, but using Yamagata University's organic EL manufacturing technology, they have confirmed a conversion efficiency of over 20%. Conventionally, solar cells have been fabricated using a high-temperature formation method called the "forward type," in which an electron transport layer (titania) is baked on top of a special transparent conductive film using a high-temperature process (approximately 500 degrees C). The research team at Yamagata University has been working on the inverse type device structure, which can reduce the process temperature. (Photo taken on May 23, 2019, location unknown, credit: Nikkan Kogyo Shimbun / Kyodo News Images)

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A Midsummer Night'S Dream film (1935)

Anita Louise Characters: Titania, Queen of the Fairies Film: A Midsummer Night's Dream (USA 1935) Director: William Dieterle, Max Reinhard 09 October 1935 Date: 09 October 1935

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A MIDSUMMER NIGHT'S DREAM (IT/UK/US 1999) MICHELLE PFEIFFER

A MIDSUMMER NIGHT'S DREAM (IT/UK/US 1999) MICHELLE PFEIFFER as Titania, RUPERT EVERETT as Oberon Date: 1999

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A MIDSUMMER NIGHT'S DREAM (IT/UK/US 1999) MICHELLE PFEIFFER

A MIDSUMMER NIGHT'S DREAM (IT/UK/US 1999) MICHELLE PFEIFFER as Titania Date: 1999

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TITANIA, TITANIA - AVAGY A DUBLOROK EJSZAKAJA

TITANIA, TITANIA - AVAGY A DUBLOROK EJSZAKAJA aka Titania, Titania or Night Of The Replicants Date: 1988

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A MIDSUMMER NIGHT'S DREAM

A MIDSUMMER NIGHT'S DREAM [US 1935] VICTOR JORY as Oberon, JAMES CAGNEY as Bottom, ANITA LOUISE as Titania Date: 1935

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A MIDSUMMER NIGHT'S DREAM

A MIDSUMMER NIGHT'S DREAM [US 1935] ANITA LOUISE as Titania [centre] Date: 1935

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A MIDSUMMER NIGHT'S DREAM

A MIDSUMMER NIGHT'S DREAM [US 1935] Some of Titania's fairies Date: 1935

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A MIDSUMMER NIGHT'S DREAM

A MIDSUMMER NIGHT'S DREAM [BR 1968] JUDI DENCH as Titania, IAN RICHARDSON as Oberon Date: 1968

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A MIDSUMMER NIGHT'S DREAM

A MIDSUMMER NIGHT'S DREAM [BR 1968] PAUL ROGERS as Bottom, JUDI DENCH as Titania Date: 1968

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A MIDSUMMER NIGHT'S DREAM

A MIDSUMMER NIGHT'S DREAM [BR 1968] IAN RICHARDSON as Oberon, PAUL ROGERS as Bottom, JUDI DENCH as Titania, Date: 1968

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A MIDSUMMER NIGHT'S DREAM (IT/UK/US 1999) MICHELLE PFEIFFER

A MIDSUMMER NIGHT'S DREAM (IT/UK/US 1999) MICHELLE PFEIFFER as Titania Date: 1999

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A MIDSUMMER NIGHT'S DREAM (UK/IT 1999) KEVIN KLINE (Bottom),

A MIDSUMMER NIGHT'S DREAM (UK/IT 1999) KEVIN KLINE (Bottom), MICHELLE PFEIFFER (Titania) Date: 1999

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A MIDSUMMER NIGHT'S DREAM

A MIDSUMMER NIGHT'S DREAM (UK 1996) ALEX JENNINGS (Oberon), LINDSAY DUNCAN (Titania) Date: 1996

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A MIDSUMMER NIGHT'S DREAM

A MIDSUMMER NIGHT'S DREAM [BR 1968] JUDI DENCH [Titania], PAUL ROGERS [Bottom] Date: 1968

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A MIDSUMMER NIGHT'S DREAM

A MIDSUMMER NIGHT'S DREAM (US 1935) WARNER BROS JAMES CAGNEY as Bottom, ANITA LOUISE as Titania Picture from the Ronald Grant Archive A MIDSUMMER NIGHT'S DREAM (US 1935) WARNER BROS JAMES CAGNEY as Bottom, ANITA LOUISE as Titania Date: 1935

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PETER BROOK'S A MIDSUMMER NIGHT'S DREAM

PETER BROOK'S A MIDSUMMER NIGHT'S DREAM [TH] ALAN HOWARD as Oberon, SARA KESTELMAN as Titania, DAVID WALLER as Bottom, JOHN KANE as Puck