Luminescent photoelectrochemical cells. 7. Photoluminescent and electroluminescent properties of cadmium sulfo-selenide electrodes. Technical report

Technical Report · Tue Oct 06 04:00:00 EDT 1981

OSTI ID:5347262

Streckert, H H; Tong, J; Carpenter, M K; Ellis, A B

Photoelectrochemical cells (PECs) are being widely studied as devices for optical energy conversion. The excited-state properties of the semiconductors around which PECs are constructed are crucial to efficient energy conversion. We have employed luminescence as a probe of these excited-state-properties, generally using materials such as n-type CdS:Te(Te-doped CdS) which exhibit subband gap emission. Recently we examined emission of band gap energy from n-type CdS and CdSe, two materials which have been used extensively in PEC studies. Since these two compounds form solid solutions over the entire composition range, the mixed compounds represent a natural extension of our emissive studies. We report herein that luminescence from samples of n-type, single-crystal CdSXSe1-X can be used to probe interfacial charge-transfer events relevant to PECs. Specifically, we demonstrate that photoluminescence (PL) can be perturbed and electroluminescence (EL) initiated by interfacial charge-transfer processes.

• Research Organization: Wisconsin Univ., Madison (USA). Dept. of Chemistry
• OSTI ID: 5347262
• Report Number(s): AD-A-107581/1
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140505* -- Solar Energy Conversion-- Photochemical
Photobiological
& Thermochemical Conversion-- (1980-)
ANODES
CADMIUM COMPOUNDS
CADMIUM SELENIDES
CADMIUM SULFIDES
CHALCOGENIDES
CHARGE EXCHANGE
CHEMICAL REACTIONS
CHEMISTRY
CONVERSION
DISPERSIONS
ELECTROCHEMICAL CELLS
ELECTROCHEMISTRY
ELECTRODES
ELECTROLUMINESCENCE
ENERGY CONVERSION
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EQUIPMENT
EXCITATION
INORGANIC PHOSPHORS
INTERFACES
LUMINESCENCE
MIXTURES
OPTICAL PROPERTIES
PHOSPHORS
PHOTOANODES
PHOTOCHEMICAL REACTIONS
PHOTOELECTROCHEMICAL CELLS
PHOTOLUMINESCENCE
PHYSICAL PROPERTIES
PROCESSING
SELENIDES
SELENIUM COMPOUNDS
SOLAR EQUIPMENT
SULFIDES
SULFUR COMPOUNDS