Blog

Ultra-narrow-band near-infrared thermal exciton radiation in intrinsic one-dimensional semiconductors

Ultra-narrow-band near-infrared thermal exciton radiation in intrinsic one-dimensional semiconductors
Taishi Nishihara, Akira Takakura, Yuhei Miyauchi, Kenichiro Itami
Nature Commun. 2018, 9, 3144. DOI: 10.1038/s41467-018-05598-3 [press release]

Thermal radiation is the most primitive light emission phenomenon of materials. Broadband radiation from red-hot materials is well known as the kick-starter phenomenon of modern quantum physics in the early twentieth century; even nowadays, its artificial control plays a central role in modern science and technology. Herein, we report the fundamental thermal radiation properties of intrinsic one-dimensional semiconductors and metals, which have not been elucidated because of significant technical challenges. We observed narrow-band near- infrared radiation from semiconducting single-walled carbon nanotubes at 1000–2000 K in contrast to its broadband metallic counterpart. We confirm that the ultra-narrow-band radiation is enabled by the thermal generation of excitons that are hydrogen-like neutral exotic atoms comprising mutually bound electrons and holes. Our findings uncover the robust quantum correlations in intrinsic one-dimensional semiconductors even at 2000 K; additionally, the findings provide an opportunity for excitonic optothermal engineering toward the realization of efficient thermophotovoltaic energy harvesting.

Related post

  1. Catalytic C–H Imidation of Aroma…
  2. Making Dimethylamino a Transform…
  3. Catalytic Dehydrogenative C–H Im…
  4. Cycloparaphenylene-Based Ionic D…
  5. Stereodivergent Synthesis of Ary…
  6. All-benzene Carbon Nanocages: Si…
  7. Palladium-Catalyzed Decarbonylat…
  8. Negatively Curved Warped Nanogra…

最近の記事

Flickr@Itamilab

天池先輩からコーヒースープ伴夫妻からのお歳暮です!潤さん、宮村さん、ありがとうございます!!武藤さん、ビールありがとうございます!平賀大都わーいやなさん、あつしさん、ありがとうございます!!だいぶ前だけど、Stripes look #ootdHalloween lookラインを洗う時ですら格好良く。戸谷先生教育実習!imageけいしゅう、誕生日おめでとう!誕生日は英吉家!!3年生に名古屋ぼろ勝ちアピール中!!アリシア卒業おめでとう女子会!
PAGE TOP