Improved monolithic photovoltaic-electrochromic devices incorporating an a-SiC:H solar cell

Book · Mon Dec 30 23:00:00 EST 1996

OSTI ID:527632

Bullock, J N; Bechinger, C; Xu, Y; Benson, D K; Branz, H M ^[1]

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1. National Renewable Energy Lab., Golden, CO (United States)

In the tandem photovoltaic-electrochromic (PV-EC) device, a wide-gap, semitransparent, amorphous silicon-carbon alloy (a-SiC:H) photovoltaic device and an electrochromic optical transmittance modulator (EC device) are deposited sequentially to form a monolithic device on a single substrate. This device can be used as a smart window for active control of daylighting and building cooling load without an external electrical connection. Last year the authors reported preliminary results on the development of a semi-transparent PV cell incorporating an a-SiC:H i-layer. Here they report the recent progress on the semitransparent PV component of a PV-EC device and development of a Li-based EC device that colors at voltages below 0.9 V. Finally, the authors discuss both recent progress and difficulties in integrating the two devices on one substrate.

• Sponsoring Organization: USDOE, Washington, DC (United States)
• OSTI ID: 527632
• Report Number(s): CONF-960401--; ISBN 1-55899-323-1
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
42 ENGINEERING
ELECTRICAL PROPERTIES
ELECTROCHROMISM
EXPERIMENTAL DATA
FABRICATION
LIGHT TRANSMISSION
LITHIUM
MAGNESIUM FLUORIDES
PHOTOVOLTAIC CELLS
SILICON CARBIDES
SILICON OXIDES
TUNGSTEN OXIDES
VANADIUM OXIDES