2013年11月30日 Nature

nero1981

2013年11月30日 Nature
, ]. y6 a" N9 D/ S, m0 V. BAbout the cover8 J3 ]+ D4 m5 o' N7 w* o) I1 b
The cover illustrates an oxide crystal generating electric current from incoming light. The spontaneous electrical polarization that characterizes a ferroelectric material is attractive for solar-cell applications as the positive and negative charges generated by light absorption have a natural tendency to separate, making them easier to harvest efficiently. Unfortunately most known ferroelectrics have wide electronic bandgaps — that is they absorb only higher energy photons that make up a small fraction of the solar spectrum. Ilya Grinberg and colleagues now show that a classic ferroelectric can be chemically engineered to tune the bandgap over a broad range, achieving strong absorption and photocurrent generation across the solar spectrum. (Cover by Felice Macera)
  q; g6 f% d; ^  M3 N1 I2 y
- I- _0 R6 M+ _- h8 @4 C

游客，如果你要查看本帖隐藏内容请回复

懵懂干细胞

感谢元老分享

猴面包

thanks

sea200k

谢谢分享& H9 i0 |! Q% y/ }

thinktank

谢谢。7 R: e0 ^1 k) n8 N* ]3 r( L4 {9 p

Boas

谢谢楼主分享。

pujvzi

thanks

sysuhoo

谢谢分享

xiangchou812

感谢分享！！！

read4011

& U- @, F! [4 S# F; }/ f( v; M感谢元老分享