인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
ABSTRACT The device performance of Cu–In–Zn–S (CIZS)‐based quantum‐dot light‐emitting diodes (QLEDs) still lags far behind CdSe‐based QLEDs, which mainly arise from unique trap‐related recombination in the CIZS quantum dots (QDs). Herein, the carrier dynamics behavior of CIZS‐based and CdSe‐based QLEDs was studied by transient electroluminescence (TrEL) technology, and the difference in the falling edge of the TrEL response was obviously observed in both QLEDs. The results show that Cu‐related defect states (Cu‐states) created a substantial hole injection barrier, making traditional hole‐transport layer modifications ineffective for carrier injection and transport balance. By engineering the ZnO electron transport layer (ETL), the electron injection and transport were reduced, which suppressed trap‐state‐mediated non‐radiative recombination. At last, carrier dynamics models were proposed to clarify the phenomenon of falling edge overshoot in the CIZS‐based QLEDs. This approach overcomes the intrinsic hole transport limitation in CIZS QDs caused by Cu‐states, offering a viable method to balance the carrier injection and transport without enhancing hole injection.
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.