TOPIC INSIGHT • ന㧋ኼ〛 2019 UMAGAZINE 20 • 澳大ᑓゆ 18 㖺㖽⍥૱㡫⣵㣌ᥩ ⚵⨑᪷ ᮼ能ᬚⅰ研ᒴ*"1.&ⅰ˷മᑚ ́ܗ ˍ䢬Ր中䢬㖸㖻⍣૯㡩能㣊ᥧⅰ研 發ҥ۩२㢂≯↷ǎ ᬉಞ༏ᐑእ͍ ♧䢬↷ נ ˔ⅰ૯㡩能 㣊ᥧ˷⾾͞ ૦ᓧ⊋᳤ ۆ ᖍᑁ䢬ዞᵋ㐿␗ ᕐ㐢成㭗ᥨᗯ ݶ 㭗⡒能䢬˜ᇤ⻐ᒏ㇀ǎ ⇀ۣ 䢬↷ "* נ 1.& ˷ᏽⅰ㖸㖻⍣૯㡩 能࣮ͪ 䢬能Χᬱ גڨ ⅰᑚཕ大㤘⑆⽔ ҥ䢬成ᕲΧ༛ǎ˷ㆺ㖸㖻⍣૯㡩能㣊ᥧ 研發ⅰ *"1.& أ ύᐑእ㒃㇀⻠⍵䢬 㖸㖻⍣ᖍᑁလ能Ԗ₠䢬 ܒ ᒿՑҥ̜ ᴮ ڏ മ㭓ⅰ㣊ಞḿလ ݶ ᕔᖍᑁⅰᬺᩬ ۽ ؝လ能䢬能㭗ᐅঁ ᇮ૯㡩能㕵㎠ የ成㣊能䢬Րᕍᑓਸ㑄ⅰ㣊㎠የᐅἐ 㭗㑅2 䢬㏧ ࡘ ᓧ⊋ⅰ2 1 䢬㑎 㭗ᑜᗯᑁᐉ٨૯㡩能㣊ᥧⅰ11 9 ݶ ᕔ ૯㡩能㣊ᥧⅰ12 ǎ۵ૣ 䢬㒃ᐑእゐ䢺 Ǘ㖸㖻⍣ᖍᑁᗰ㍇㍵Ͼ䢬能ࣺ 㣭ᇃ ڨ ᇤ⻐䢬 ڨ ॺ⣌ٛ ᆖ⻜ᕘ˔㐫⻋૯㡩能Ԝ 㣊䢬能大大ዞ㭗ᐅ能ǎ⇀НॺᕰϚཅ〲 智ᄏ৪˔䢬ധᕔᕅ૦Ԫ٨ⅰᅞǎǘ industries in Macao. New energy has the potential to become a new pillar industry in Macao.’ Perovskite Solar Cells Developing new forms of green energy is one of the main research interests of the IAPME. In fact, the perovskite solar cells developed by the institute have already attracted considerable international attention. Prof Tang explains that the solar cells currently available on the market are mostly made of polysilicon, whose manufacturing process is expensive, consumes much energy, and produces many pollutants. On the other hand, the perovskite solar cells which are developed by the institute can be mass-produced through low-temperature printing at a low cost. Xing Guichuan, an assistant professor in the IAPME, who is mainly in charge of the development of perovskite solar cells, says that perovskite solar cells have not only demonstrated excellent performance, but also have the optoelectronic properties of inorganic semiconductors and can be processed in solutions like organic materials. They can effectively convert solar energy into electrical power. According to the latest report, they can achieve a photoelectric conversion efficiency of 23.7%, comparable to that of single crystal silicon (26.1%) and far higher than that of dye-sensitised solar cells (11.9%) and organic solar cells (12.6%). Moreover, according to Prof Xing, perovskite materials are soft and light, so they can be printed on backpacks or clothes to store solar energy through spray painting technology, which can greatly improve efficiency. He believes that in the future perovskite materials will have more applications in the development of smart cities. Next-generation LED Technology In addition to perovskite solar cells, Prof Xing is also in charge of the development of perovskite nanocrystalline light-emitting diodes (LEDs), which are hailed as ‘the next-generation LED technology’. They are expected to bring low-cost, environmentally-friendly and highly-efficient LED displays and light sources into everyday life. Indium, a raw material used to make gallium nitride LEDs, is a scarce metal with very small global reserves. Some ڏ മ㭓⥩㭓㕵ಞ㷞 Semiconductor colloidal quantum dots
RkJQdWJsaXNoZXIy MTQ1NDU2Ng==