TY - JOUR
T1 - In situ observation of optically and thermally induced charge depletion in chromophore-doped cyclic olefin copolymers
AU - Mellinger, A.
AU - Singh, R.
AU - González, F. Camacho
AU - Szamel, Zbigniew
AU - Glowacki, Ireneusz
PY - 2004
Y1 - 2004
N2 - For a number of years, cyclic olefin copolymers (COC) have been known for their good chargestoring properties. Due to their high optical transparency, they are ideally suited to study the interaction of trapped space charges with light. Films of different COC grades were doped with various chromophores and studied using thermally stimulated discharge (TSD) and photostimulated discharge (PSD). The space charge profiles were determined in real time using the thermal pulse (TP) technique, where the low-transparency top electrode is heated with a short laser pulse. UV irradiation near 300 nm leads to an accelerated decay of the nearsurface charge density, which can be explained if at least part of the space charges are released from traps with a depth of approx. 4 eV. In addition, the thermal diffusivity was determined from laser-induced temperature phase shifts.
AB - For a number of years, cyclic olefin copolymers (COC) have been known for their good chargestoring properties. Due to their high optical transparency, they are ideally suited to study the interaction of trapped space charges with light. Films of different COC grades were doped with various chromophores and studied using thermally stimulated discharge (TSD) and photostimulated discharge (PSD). The space charge profiles were determined in real time using the thermal pulse (TP) technique, where the low-transparency top electrode is heated with a short laser pulse. UV irradiation near 300 nm leads to an accelerated decay of the nearsurface charge density, which can be explained if at least part of the space charges are released from traps with a depth of approx. 4 eV. In addition, the thermal diffusivity was determined from laser-induced temperature phase shifts.
UR - http://www.scopus.com/inward/record.url?scp=17744370507&partnerID=8YFLogxK
M3 - Conference article
AN - SCOPUS:17744370507
SN - 0084-9162
SP - 498
EP - 501
JO - Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP
JF - Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP
T2 - 2004 Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP
Y2 - 17 October 2004 through 20 October 2004
ER -