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ISOS standards

Suren Gevorgyan Morten Vesterager Madsen

Here the procedures for testing organic solar cell devices and modules with respect to stability and operational lifetime. The guiding standards have been established based on the consensus reached by the consortia of the international summit on OPV stability (ISOS). The procedures include directions for shelf life testing (D), outdoor testing (O), laboratory weathering testing (L) and thermal cycling testing (T). The table is interactive and allows accessing detailed information for each test category by clicking directly onto the test of interest in the table. For further information regarding ISOS standards we refer to the article "Consensus stability testing protocols for organic photovoltaic materials and devices"DOI:10.1016/j.solmat.2011.01.036. Solar simulators designed for most of the ISOS procedures are commercially available (e.g. infinityPV ISOSun).

ISOS-D-1 Shelf

Light source None
Temeraturea Ambient
Relative humidity (R.H.)a Ambient
Enviromenta Ambient
Characterization light source Solar simulator or sunlight
Loadb Open circuit
Examples

ISOS-D-2 High Temp. storage

Light source None
Temeraturea 65/85 °C
Relative humidity (R.H.)a Ambient (low)
Enviromenta Oven
Characterization light source Solar simulator
Loadb Open circuit
Examples

ISOS-D-3 Damp heat

Light source None
Temeraturea 65/85 °C
Relative humidity (R.H.)a 85%
Enviromenta Enviroment chamber
Characterization light source Solar simulator
Loadb Open circuit
Examples

ISOS-O-1 Outdoor

Light source Sunlight
Temeraturea Ambient
Relative humidity (R.H.)a Ambient
Enviromenta Outdoor
Characterization light source Solar simulator
Loadb MPP or open circuit
Examples

ISOS-O-2 Outdoor

Light source Sunlight
Temeraturea Ambient
Relative humidity (R.H.)a Ambient
Enviromenta Outdoor
Characterization light source Sun light
Loadb MPP or open circuit
Examples

ISOS-O-3 Outdoor

Light source Sunlight
Temeraturea Ambient
Relative humidity (R.H.)a Ambient
Enviromenta Outdoor
Characterization light source Sun light or solar simulator
Loadb MPP
Examples

ISOS-L-1 Laboratory weathering testing

Light source Simulator
Temeraturea Ambient
Relative humidity (R.H.)a Ambient
Enviromenta Light only
Characterization light source Solar simulator
Loadb MPP or open circuit
Examples

ISOS-L-2 Laboratory weathering testing

Light source Simulator
Temeraturea 65/85 °C
Relative humidity (R.H.)a Ambient
Enviromenta Light and temperature
Characterization light source Solar simulator
Loadb MPP or open circuit
Examples

ISOS-L-3 Laboratory weathering testing

Light source Simulator
Temeraturea 65/85 °C
Relative humidity (R.H.)a Near 50%
Enviromenta Light, temperature and R.H.
Characterization light source Solar simulator
Loadb MPP
Examples

ISOS-T-1 Thermal cycling

Light source None
Temeraturea Between room temp. and 65/85 °C
Relative humidity (R.H.)a Ambient
Enviromenta Hot plate/oven
Characterization light source Solar simulator or sunlight
Loadb Open circuit
Examples

ISOS-T-2 Thermal cycling

Light source None
Temeraturea Between room temp. and 65/85 °C
Relative humidity (R.H.)a Ambient
Enviromenta Oven/enviromental chamber
Characterization light source Solar simulator
Loadb Open circuit
Examples

ISOS-T-3 Thermal cycling

Light source None
Temeraturea -40 to +85 °C
Relative humidity (R.H.)a Near 55%
Enviromenta Enviromental chamber
Characterization light source Solar simulator
Loadb Open circuit
Examples

ISOS-LT-1 Solar-thermal cycling

Light source Simulator
Temeraturea Linear or step ramping between room temp. and 65 °C
Relative humidity (R.H.)a Monitored, uncontrolled
Enviromenta Weathering chamber
Characterization light source Solar simulator
Loadb MPP or open circuit
Examples

ISOS-LT-2 Solar-thermal-humidity cycling

Light source Simulator
Temeraturea Linear ramping between 5 and 65 °C
Relative humidity (R.H.)a Monitored, controlled at 50% beyond 40 °C
Enviromenta Env. chamber with sun simulator
Characterization light source Solar simulator
Loadb MPP or open circuit
Examples

ISOS-LT-3 Solar-thermal-humidity-freeze cycling

Light source Simulator
Temeraturea Linear ramping between -25 and 65 °C
Relative humidity (R.H.)a Monitored, controlled at 50% beyond 40 °C
Enviromenta Env. chamber with sun simulator and freezing
Characterization light source Solar simulator
Loadb MPP or open circuit
Examples


aThe ambient conditions are defined as 23 °C / 50%RH in general, and 27 °C / 65%RH accepted in tropical countries according to ISO291(2008):Plastics—Standard atmospheres for conditioning and testing.
bOpen circuit refers to a simply disconnected device or device connected to a sourcemeter set to 0 current.

DOI:10.1016/j.solmat.2011.01.036

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