Studies on Preparation of Poly(PV-CO-DMeOPV) and Its Characteristic of PL and EL

Chem. J. Chinese Universities ›› 1998, Vol. 19 ›› Issue (12): 2020.

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Studies on Preparation of Poly(PV-CO-DMeOPV) and Its Characteristic of PL and EL

HUANG Zong-Hao¹, TONG La-Ga¹, WANG Xiu-Jun¹, BAI Yong-Ping², QIU Yong-Qing¹, LIU Ze¹, LIU Yang³, SONG Jun-Feng³, CHEN Li-Chun⁴, WANG Xiang-Jun⁴, DU Guo-Tong³, WANG Rong-Shun¹

1. Department of Chemistry, Northeast Normal University, Chang chun, 130024;
2. Department of Chemistry, Harbin Institute of Technology, Harbin, 150001;
3. State Key Laboratory on Integrated Optoelectr onics, Jilin University Region, Changchun, 130023;
4. Institute of Materials Physics, Tianjing Institute of Technology, Tianjin, 300191

Received:1997-09-02 Online:1998-12-24 Published:1998-12-24

Abstract

Abstract: In this contribution, how to prepare the electroluminescence materials of Poly(PV-co-DMeOPV) based on Wessling solutable precusor route was described. The determined spectrum shapes of the PLand ELof co-polymer having 1: 1 mole ratio all are single peak type, and different from the double-peak shapes of PLand ELspectra of PPV. And the emissive maximum magnitudes of PLand ELof above co-polymer are 520 nm and 570 nm, respectively. The PLpeak lies on about middle position between₅₁₅ nm and 601 nm which are the PLshort-wave peaks of PPVand PDMeOPV, respectively. For the sake of discussing the influence of co-polymerization on luminescence property of co-polymer, the EHMACC/CO(Crystal Orbital) program is used to calculate the energy bands of PPV, PDMeOPVand 1: 1 molar ratio co-polymer. The results show that due to the p-π conjugation between the OCH₃ and the main chain, the energy gap of co-polymer decreases, and the emission spectrum is red-shift; this kind of effect will become stronger and stronger with the increasing of OCH₃ number on the conjugative chain.

Key words: Organic luminescence polymer, Co-polymer, Energy band

CLC Number:

O631.1

TrendMD:

HUANG Zong-Hao, TONG La-Ga, WANG Xiu-Jun, BAI Yong-Ping, QIU Yong-Qing, LIU Ze, LIU Yang, SONG Jun-Feng, CHEN Li-Chun, WANG Xiang-Jun, DU Guo-Tong, WANG Rong-Shun . Studies on Preparation of Poly(PV-CO-DMeOPV) and Its Characteristic of PL and EL[J]. Chem. J. Chinese Universities, 1998, 19(12): 2020.

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Studies on Preparation of Poly(PV-CO-DMeOPV) and Its Characteristic of PL and EL

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