Unusual capacitance emission transients in CIGS caused by large defect entropy changes [[electronic resource] /] / D.L. Young, K. Ramanathan, and R.S. Crandall

• Autore: Young David L
• Pubblicazione: Golden, Colo. : , : National Renewable Energy Laboratory, , [2005]
• Descrizione fisica: 4 pages : digital, PDF file
• Soggetto topico: Solar cells - Materials - Effect of temperature on
• Altri autori: RamanathanKannan CrandallRichard S
• Note generali: Title from title screen (viewed on May 9, 2006).; "February 2005."; 2005-08-21.
• Sommario/riassunto: Capacitance transient data from bias-pulse experiments on CdS/CIGS solar cells show an unusual behavior at high temperatures. Above 350 K, a minority-carrier trap, with a larger activation energy than a majority-carrier trap, emits faster than the lower activation-energy minority trap. A simple enthalpy model for trap emission cannot explain this counterintuitive behavior; but the more complete Gibbs free-energy model that includes entropy can explain it. We show that entropy plays a major role in carrier emission from traps in CIGS.
• Titolo autorizzato: Unusual capacitance emission transients in CIGS caused by large defect entropy changes
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Lingua di pubblicazione: Inglese
• Record Nr.: 9910698268703321
• Lo trovi qui: Univ. Federico II