Eia kekahi, e like me kā lākou i hōʻike ai ma ka pepa "Direct bandgap emission from hexagonal germanium and silicon-germanium alloys" i paʻi ʻia ma ka puke pai Nature, ua hiki iā lākou.Hiki ke hoʻololi mau ʻia ka lōʻihi hawewe radiation ma kahi ākea.Wahi a lākou, hiki i kēia mau ʻike hou ke ʻae i ka hoʻomohala ʻana i nā chips photonic pololei i loko o nā kaʻa hoʻohui silicon-germanium.
ʻO ke kī i ka hoʻololi ʻana i nā ʻāpana SiGe i nā mea hoʻopuka bandgap pololei ʻo ka loaʻa ʻana o nā mea hoʻohui germanium a me germanium-silicon me kahi hoʻolālā lattice hexagonal.Ua hoʻohana nā mea noiʻi ma ke Kulanui ʻenehana o Eindhoven, me nā hoa hana mai ke Kulanui ʻenehana o Munich a me nā kulanui o Jena a me Linz, i nā nanowires i hana ʻia mai kahi mea ʻē aʻe e like me nā laʻana no ka ulu hexagonal.
A laila, lilo nā nanowires ma ke ʻano he kumu hoʻohālike no ka pūpū germanium-silicona ma luna o ka mea i hoʻokumu ʻia ai kahi ʻano aniani hexagonal.I ka hoʻomaka, akā naʻe, ʻaʻole hiki i kēia mau hale ke hauʻoli e hoʻopuka i ka mālamalama.Ma hope o ka hoʻololi ʻana i nā manaʻo me nā hoa hana ma ka Walther Schottky Institute ma ke Kulanui ʻenehana o Munich, ua ʻimi lākou i nā waiwai optical o kēlā me kēia hanauna a hoʻopaʻa i ke kaʻina hana i kahi e hiki ai i nā nanowires ke hoʻokuʻu i ka mālamalama.
"I ka manawa like, ua hoʻokō mākou i ka hana kokoke e like me ka indium phosphide a i ʻole gallium arsenide," wahi a Prof. Erik Bakkers mai ke Kulanui ʻenehana ʻo Eindhoven.No laila,ʻo ka hanaʻana i nā lasers e pili ana i nā'āpana germanium-silicon i hiki ke hoʻohuiʻia i loko o nā kaʻina hana hana maʻamau, he manawa wale nō ia.
"Inā hiki iā mākou ke hāʻawi i ka leka uila i loko a me ka inter-chip, hiki ke hoʻonui ʻia ka wikiwiki e ka helu o 1,000," wahi a Jonathan Finley, ke kaukaʻi o semiconductor quantum nanosystems ma TUM.hiki ke hōʻemi nui i ka helu o nā radar laser, nā mea ʻike kemika no nā diagnostics olakino, a me nā chips no ke ana ʻana i ka ea a me ka maikaʻi o ka meaʻai.
ʻO ka silicon germanium alloy i hoʻoheheʻe ʻia e kā mākou hui hiki ke ʻae i nā ʻāpana hoʻohālikelike
Ka manawa hoʻouna: Iune-21-2023