An intermediate band solar cell which generates photocurrent due to sequential absorption of two sub-bandgap photons at temperatures up 300 K was realized. The is comprised a “quantum ratchet” semiconductor nanostructure designed store the photoelectron in long-lived state that allows for efficient optical re-absorption; it incorporates potential barrier both increase confinement electrons and ...

Each of the Minerva houses has a seminar room that is equipped with a limited amount of technology. In keeping with the President's initiative to build a close relationship between academic and student life, the rooms are available to both students and faculty to use. each room contains a motorized projection screen, a ceiling-mounted data projector, and a DVD/VCR combo unit. A panel in the roo...

Each of the Minerva houses has a seminar room that is equipped with a limited amount of technology. In keeping with the President's initiative to build a close relationship between academic and student life, the rooms are available to both students and faculty to use. each room contains a motorized projection screen, a ceiling-mounted data projector, and a DVD/VCR combo unit. A panel in the roo...

Aid (ODA, Official Development Assistance) statistics are routinely produced by the Development Assistance Committee (DAC) of the OECD on the basis of data provided by bilateral donor agencies and using definitions and guidelines that represent a broad donor consensus. The use of new aid instruments, such as debt relief, has led to several changes and additions to DAC procedures over the years,...