Con frecuencia, a la tecnología le lleva muchos años abrirse paso del laboratorio a los hogares de la gente común. Sin embargo, en el caso de la tecnología Quantum Dot con la que cuentan los televisores Samsung QLED, sólo transcurrieron cerca de 30 años para que esto sucediera. Parece mucho tiempo, pero es realmente poco si no conocemos los antecedentes históricos.
En realidad, la historia de los puntos cuánticos no es tan breve. Se remonta a muchos años atrás, hasta la creación de las ventanas de vitrales — en el siglo I d.C. Es así que los humanos hemos estado aprovechando el poder de las nanopartículas — elemento central de los puntos cuánticos que acciona las imágenes sorprendentes del televisor QLED — durante mucho, pero mucho tiempo. Retrocedamos y veamos uno de los ejemplos más antiguos: las majestuosas ventanas de vitrales que datan del siglo I d.C.
¿Cómo funcionan los vitrales?
Los vitrales han existido por más de 1000 años— ¡definitivamente mucho más que el televisor QLED! En especial, los vitrales se usaban como medio de expresión artística, que se encontraba comúnmente en las iglesias europeas, durante la Edad Media. Los artistas medievales que incursionaban en la alquimia mezclaban el cloruro de oro y plata con vidrio fundido, para crear tintes rojos y amarillos que brillaban espectacularmente con la luz del sol. Cuando la luz tocaba el vitral, las nanopartículas de cloruro actuaban como puntos cuánticos, reflejando una magnífica variedad de luces rojas y amarillas en esa zona del espectro de colores.
Entonces, ¿qué tiene que ver eso con el televisor QLED?
Bueno, las creaciones sensacionales de vitrales que se encuentran en las catedrales europeas, son uno de los primeros ejemplos de la aplicación de nanopartículas similares a los puntos cuánticos por artistas humanos. Los óxidos y cloruros metálicos que se encuentran en los vitrales reaccionan con la luz de una manera similar a la de los puntos cuánticos. 1 Dichas nanopartículas tomaron un papel fundamental en la creación del fascinante efecto de estas obras clásicas de arte. Y las mismas nanopartículas — aunque mejoradas — se encuentran en las pantallas de los televisores QLED, brindando las imágenes vívidas con las que la nueva línea de Samsung está siendo reconocida.
Cómo trabajan los puntos cuánticos y cuáles son sus efectos
Mucho después de que los artistas alquimistas medievales descubrieran el método de incorporar químicamente cloruros en el vidrio, los científicos modernos empezaron a descubrir un fenómeno relacionado, casi por accidente. Al fracturar materiales con propiedades semiconductoras en partículas nanométricas — sólo ligeramente mayores que las moléculas de agua — se descubrieron otras propiedades interesantes. El tamaño ajustado de las partículas afecta el color de la emisión de luz, como resultado del cambio en la energía de banda prohibida. De este modo, al controlar el tamaño de un punto cuántico con incrementos diminutos, el espectro de colores puede expresarse en forma más plena y pura.
¿No es sorprendente que el proceso para controlar las nanopartículas para que produzcan colores asombrosos se haya refinado tanto, que ahora podamos encontrar puntos cuánticos en un televisor moderno? Hoy podemos apreciar imágenes impresionantes gracias a los puntos cuánticos de los televisores QLED, tanto como en las increíbles luces de los paneles de vitrales en las catedrales más importantes del mundo.
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Taoist Master Ying Yuan felt his blood surge in his chest.It seems that only the outline of the small world has been omitted.
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This is a look of extreme disbelief. Mr. Mood suddenly felt that at this moment, at the moment when Chen Yang s final sword was released with all his strength, oneself s control over oneself was suddenly declining rapidly A strange thought of I am not myself quickly emerged, and soon it seemed that the connection between my own divine will and my Dharma body was rapidly weakening, as if it was about to be expelled by an inexplicable force.
Dongfang Wanqing said With his cultivation level, although this method is fast, it is still difficult to catch him.Mr. Mood, however, looked like he was in a good mood and was not in a hurry to make a move.
Since it is feasible, then after reaching the highest level of blameless deduction ability, it will definitely be able to be completed.This person was actually one of those hundred people.
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Gui Wujiu said with a smile The first restriction, I call it the Destiny Limit.Did he notice the abnormality in Mo Tianqing s identity Absolutely not.
He was called over for no apparent reason, and was illuminated by a kind of mirror for no apparent reason.He has been gone for half an hour. Young man, wearing a bamboo hat User Reviews and Real-Life Examples Could it be that Ye Fei Junshan frowned.
When the dragon elephant was rising, he saw several large golden characters, which were very blurry and looming.Unfortunately, What s strange is that after entering his body, this energy seems to have no way of getting in and passes away very quickly.
Bad boy Looking at Ye Fei s retreating back, Wu Juan couldn t help but hum.No, he s going to give up his body and launch the strongest attack.
Like chaos, in fact, she had mobilized all the connections of the three legions to look for Ye Fei, but Ye Fei seemed to have disappeared, with no news at all.However, their asking price is extremely high, often tens of millions of spiritual stones.
The leading woman, dressed in white, graceful and graceful, with green hair like a waterfall, really came as if she were a fairy.This cyclone is equivalent to the Gate of Life, the hub of spiritual power.
He had not seen such an alternative disciple for hundreds of years.The sharp claws penetrated his chest directly. He held a bloody heart in his hand, which was still beating.
You must know that you Official Responses and Investigations are the body of Nine Yangs. I am taking Jiuyin Pill.Yuan Magnetic Spirit Technique, Ye Fei took advantage of the opponent s carelessness and used Yuan Magnetic Spirit Technique, which specializes in human spirit.
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Very understanding. Of course, Ye Fei also wants to buy a defensive spiritual weapon.She was lying on a huge stone, and her body was already Ah Mo Xingyu looked up to the sky and let out a scream.
Boy, don t think that the realm in the later stages of the Guiyi Realm is very high.Senior Brother Hao was seriously injured, his body was in tatters, one arm was torn off, dripping with blood, and his whole clothes were stained with blood.
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After three full breaths, his face showed realization and he rubbed his hands.Dharma intention. Anyone who sees this situation, The only thing is that this sutra itself is mysterious.
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Unexpectedly, Gui Wujiu just said such words. After pondering alone for a full quarter of an hour, Mu Mu said, Farewell.Long Yun and Feng Qing each took action and pushed out a palm lightly.
This is the most advanced long range attack skill in the Tao realm, which has been studied together by the three of them for more than ten years.At the same time, Gui Wujiu pointed his finger at Xi Lerong s eyebrows.
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Long Yun turned slightly to one side and fixed his gaze.Leng Hua, Ye Tuo and Lu Su looked at each other, also slightly surprised.
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In the container, take exactly half of it. Each person s half of the income, and even the contents of each container, are different.She is also well aware of the three flavors of the magic method of tracing the devil s origin into the heart.
Con frecuencia, a la tecnología le lleva muchos años abrirse paso del laboratorio a los hogares de la gente común. Sin embargo, en el caso de la tecnología Quantum Dot con la que cuentan los televisores Samsung QLED, sólo transcurrieron cerca de 30 años para que esto sucediera. Parece mucho tiempo, pero es realmente poco si no conocemos los antecedentes históricos.
Los vitrales han existido por más de 1000 años— ¡definitivamente mucho más que el televisor QLED! En especial, los vitrales se usaban como medio de expresión artística, que se encontraba comúnmente en las iglesias europeas, durante la Edad Media. Los artistas medievales que incursionaban en la alquimia mezclaban el cloruro de oro y plata con vidrio fundido, para crear tintes rojos y amarillos que brillaban espectacularmente con la luz del sol. Cuando la luz tocaba el vitral, las nanopartículas de cloruro actuaban como puntos cuánticos, reflejando una magnífica variedad de luces rojas y amarillas en esa zona del espectro de colores.
Cómo trabajan los puntos cuánticos y cuáles son sus efectos
¿No es sorprendente que el proceso para controlar las nanopartículas para que produzcan colores asombrosos se haya refinado tanto, que ahora podamos encontrar puntos cuánticos en un televisor moderno? Hoy podemos apreciar imágenes impresionantes gracias a los puntos cuánticos de los televisores QLED, tanto como en las increíbles luces de los paneles de vitrales en las catedrales más importantes del mundo.