清华大学材料科学与工程研究院《材料科学论坛》

学术报告

题目：The Advent of Mesoscopic Solar Cells

报告人：Prof. Michael Grätzel

（Laboratory for Photonics and Interfaces, Swiss Federal Institute of Technology）

时间： 2006年12月5日（星期二） 3：20 pm

地 点： 清华大学陶瓷国家重点实验室学术报告厅（逸夫技术科学楼2－213）

欢迎广大师生踊跃参加!

联系人：林红 62772672

The Advent of Mesoscopic Solar Cells

Prof. Michael Grätzel

Laboratory for Photonics and Interfaces, Swiss Federal Institute of Technology,

Mesoscopic injection solar cells operate in an entirely different fashion than conventional solar p-n junction devices. Mimicking the principles that natural photosynthesis has used successfully over the last 1.5 billion years in solar energy conversion, they achieve the separation of light harvesting and charge carrier transport. The semiconductors used in conventional cells assume both functions simultaneously imposing stringent demands on purity and entailing high material and production costs. The prototype of this new PV family is the dye-sensitized solar cell (DSC). The DSC has made phenomenal progress since its discovery was announced in the scientific literature only 15 years ago [1-3]. Conversion efficiencies of over 11 percent and excellent stability have been reached rendering it a credible alternative to conventional p-n junction photovoltaic devices. The industrial development is advancing rapidly. Several enterprises currently produce modules and flexible cells on a pilot scale and commercial manufacturing of the DSC has recently been announced. It is asserted that this type of cell is a viable contender for large-scale future solar energy conversion systems on the bases of cost, efficiency, stability and availability as well as environmental compatibility.

Curriculum Vitae

Professor Michael Grätzel discovered a new type of solar cell based on dye sensitized mesoscopic oxide particles and pioneered the use of nanocrystalline materials in electroluminscent and electrochromic displays as well as lithium ion batteries and bioelectronic sensors. Author of over 500 publications, two books and inventor of more than 50 patents, he ranks amongst the most highly cited scientists worldwide. He has received numerous prestigious awards, including the Faraday Medal of the British Royal Society of Chemistry, the Dutch Havinga award, the Italgas prize and the Gerischer award. Last year he was selected by the Scientific American as one of the 50 top researchers in the world.

1) B. O’Regan and M. Grätzel “A Low Cost, High Efficiency Solar Cell based on tbe Sensitization of Colloidal Titanium Dioxide " Nature, 1991, 353, 7377. (Cited 2725 times)

2) U.Bach, D.Lupo, P.Comte, J.E.Moser, F.Weissörtel, J.Salbeck, H.Spreitzert and M.Grätzel, Nature，1998, 395, 550. (Cited 576 times).

3) M. Grätzel “Photoelectrochemical Cells” Nature, 2001, 414, 332. (Cited 545 times)